lal
@lal-R60Xjx Member
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Something confuses me an exam ..
Yes, it would, and note that it is true only if you keep the reference of measurement same in both cases. If A and B are...
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Something confuses me an exam ..
Why don't you start by represeting those networks as two equivalent Norton circuits and equate? Let us know what relations you come up with. For instance,...
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Nostalgia creeping in.. Old CEans, how are you all doing? :)
Ah! I remember spending a really long stretch of time reading and investigating the whole CE Bot thread, in one go. That thread is one of...
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Nostalgia creeping in.. Old CEans, how are you all doing? :)
Awesome! Feels home again.#-Link-Snipped-# yes, the classic login was being missed, big time! :D
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Why does the glow of lamps becomes weaker when heavy current appliance is switched on?
#-Link-Snipped-# What happens if a wire is loaded to 20A that is designed to carry only 10A? You do the math.
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DC MOTOR CONTROLLED DOOR
What kind of door are you trying to use the motor with; sliding, conventional or what?
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[POLL] Should 3.5mm headphone jack go or stay?
I seriously fail to see an advantage there except for any space that could be saved by removing the jack. A phone will have far better...
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[POLL] Should 3.5mm headphone jack go or stay?
Anoop Kumar Headphone Jack 3.5 required digital to analog conversion. Not required if we are looking for true experience. I didn't understand what you meant there....
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[POLL] Should 3.5mm headphone jack go or stay?
USB ports evolved, Charging ports evolved, technology itself evolved, but the 3.5 mm Analog Audio Output port stayed strong for decades. It looks a little big...
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Spam Attack on CrazyEngineers
Could there be some filter which prevents posting new threads with hyperlinks, or some common spam words until a mod approves it?
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What happens to mobile phones with non-replaceable battery ?
Kaustubh KatdareHas anyone among us ever got a 'non-replaceable' battery replaced? I think most of the modern Li-Ion batteries used in mobile phones and laptops have...
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Voice Controlled Personal Assistant using Raspberry Pi
Karthic CMKnowledge is meant to be shared.Knowledge is, but not the source code 😁 unless the person who did all the hard work is very generous!
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Ground Fault Problem
DroopyThat's when I noticed that when I checked voltages to ground, instead of reading 277 on each phase, I would read 480V on two legs and...
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Problem in Programmer
Does the programmer get detected by the flashing software? Or does it not have to? PS: I do not have any experience with 89c51 and its...
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Visiting Bangalore | 29th Nov - 4th Dec 2016
I might have to visit again. Will definitely make sure to drop a comment if that is the case.
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Visiting Bangalore | 29th Nov - 4th Dec 2016
Oh, snap! I just returned after a few days' stay yesterday 😖
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why we connect voltmeter in parallel with series connection of diode and ammeter for reverse biasing
Question: What are the significance of readings you get from those metres in the mentioned configurations? Or what do the readings mean?
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Can someone explain Raspberry Pi3?
Those are like your cellphone. But quite a lot tweakable than that. The processing power is comparable to your cellphone, but the direct access to hardware...
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CrazyEngineers IO Web Apps - A Bit In More Detail
That is great. There are a lot more possibilities than career guidance, resume building and managing to do list and those should be concentrated much too....
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Power systems engineering project ideas
Rather than finding a random project, I believe the best source is your mind itself. In between your studies or industrial visits or internships, you would...
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What is the use of core in a transformer?
Vipin vermaYes I found, Transformer can be design without core, But losses will more occurs, that's why we use core for better efficiency.I assume you know...
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What is the use of core in a transformer?
Vipin vermaPlz, try to do practical and then find ans. Never says to anyone, Transformer can't design without core. It's proved, a transformer can design without...
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Signed up on IO? Tell the world here!
Is pending review and under review the same? I have "pending review" for the last 24 hours.
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CrazyEngineers IO Related Questions and Answers
I see, so money is brought in to the scene! So what are the legalities, terms and conditions?
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What is the use of core in a transformer?
There are a few things which make core an invaluable part of a transformer. I am hoping you are aware that induction of voltage in the...
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Advice for project using raspberry pi or arduino
I couldn't find the links to those discussions specifically, I don't remember the thread titles. But there was this animated Pixar desk lamp project someone did...
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Advice for project using raspberry pi or arduino
I couldn't find the links to those discussions specifically, I don't remember the thread titles. But there was this animated Pixar desk lamp project someone did...
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Advice for project using raspberry pi or arduino
It is fairly impossible to give simple answers to those questions. The kind of money, effort and time you'll need to spend will depend on the...
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Why is the charge transmitted by electrons and not protons?
Protons are bound inside the nucleus not really able to move. If you want them out, that's like breaking the nucleus which would generate a lot...
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ideas about vehicle running without fuel
Don't we have the bicycle for that 😁 Alright, Electrical energy is already being used in place of fossil fuels. People have created spring would vehicles,...
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INTERRUPTS- PIC16F877A
I cannot comment on the code. I never had experience coding in MikroC. I write in assembly. By the way, does PIC respond to external interrupt?
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INTERRUPTS- PIC16F877A
Yes, you can. For all the interrupts, PC will point to 04h and you will need to further check the flags to see what action caused...
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New Non-destructive Industrial Testing Technique Devised
I didn't know measuring electrical properties included destruction of material 😐 I was actually hoping to read about non destructive test methods to find mechanical properties...
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I must know some interesting facts about GTO thyristor-controlled series capacitors
Could that in any way be related to Capacitor Discharge Ignition used in vehicles? It seems so to me. Check this <a href="https://en.wikipedia.org/wiki/Capacitor_discharge_ignition...
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How to identify 4G SIM card?
Any Idea which band shall be used by Idea to launch its 4G services? Heard not all phones support all bands. Especially the 850MHz band. IIRC,...
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Permanent battery in cellphones - solar panel
I have seen that on many power banks too. There would be a solar panel and even in the shadows, the charging led will be blinking....
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motor selection for a particular load
You have to figure out the maximum speed and torque you require on the wheels. They you got to figure out if you're going to use...
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World's Cheapest Smartphone At Rs. 251 - Freedom 251 Touted To Ring Bells of Revolution
Koushal PatelI repeat, we have a very sophisticated government approval process of allowing these kind of stuffs in the market.And are you sure the government and...
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World's Cheapest Smartphone At Rs. 251 - Freedom 251 Touted To Ring Bells of Revolution
Let some conspiracy bloom too. Some unknown underground agency is funding the company to create the largest and most effective spy network over India 😁 By...
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How to calculate unit of motor?
Directly calculating motor power using the formula to deduce power cannot be used as converter output will be having a different voltage than the input. So...
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Permanent battery in cellphones - solar panel
The simplest answer could be, current technology of photovoltaic cells aren't capable enough to do that. The amount of electrical energy that could be generated from...
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hybrid vehicles Bhev
Interesting project. How much have you progressed with it? Do you plan to start building from the base or modify an existing car for the time...
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How to calculate unit of motor?
Around 7kW if voltage is assumed to be 415V, 3phase, power factor to be 0.8 lagging and inverter efficiency around 80℅.
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How to calculate unit of motor?
Did you say the input current of drive from its spec? If so, it would not be more than the mentioned value unless overloaded!
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How to calculate unit of motor?
Wait, it looks like I have perceived 'drive' the wrong way. Is drive simply a star-delta starter or a power electronic motor controller? And I assume...
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How to calculate unit of motor?
When you calculate the power at input and output, you'll see the output is lesser than the input due to losses. Anyway, to answer the question,...
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Tata Sky DTH Signal Disruption In Rain - Any Solution?
Ankita KatdareWhy don't the service providers employ this solution? Are there any obvious disadvantages to it?Yes, the biggest advantage of using 'Ku' band is the ability...
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How to calculate unit of motor?
Input it would be. Motor and drive together should be considered. Drive would be dissipating a part of the energy it consumes as heat (losses) and...
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Carrying out FAT at Site instead of at factory
Well, ideally FAT is conducted at the manufacturing facility itself. But then, if the vendor and client are in to some kind of agreement, FAT and...
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Remote Control Mouse Using TV Remote
There is an open source package called "LIRC" which could be used to send and receive IR signals using a computer. You could read the wiki...
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What is the difference between pressure and stress?
Ankita Katdare#-Link-Snipped-# Could you share your views here?It seems like there is nothing extra I could add to this discussion. I only had an understanding that...
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LEDs..cheaper or costly..?
LEDs are supposed to be driven controllably. Usually closed loop current or temperature controlled circuits are used to drive LEDs. This itself is the main reason...
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Current, Voltage & Resistance
It would be more meaningful the other way. Potential difference (pd) is the driving force for current. That is, current is directly proportional to voltage. But,...
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Current, Voltage & Resistance
Why don't you try state Ohm's law and post what you understand. We'll work from there!
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Tata Sky DTH Signal Disruption In Rain - Any Solution?
Ankita KatdareI was just wondering if there was a way to minimise the effect of rains on DTH signals. A friend just called up to say...
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What is power zerk (transients)? Why does it happen?
Well, mostly the sources for transients are load fluctuations. Sometimes faults which are not directly in the immediate network of the power system can cause it...
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What is power zerk (transients)? Why does it happen?
Is it transient/spike that you are talking about? Could you please link some document or source which describes "power zerk"?
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What is power zerk (transients)? Why does it happen?
That sounds like a total new thing to me. Could you explain a bit please?
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Circuit to remotely control an electric switch
It looks to me that circuit breaker will trip the very instant H-switch is switched On or Relay-2 is powered from the wiring diagram. I see...
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How to unlist or remove my number from TrueCaller database? [Tutorial]
Oh well, none of the numbers I unlisted used their app. May be that's why those numbers could be unlisted. By installing the app, user may...
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How to unlist or remove my number from TrueCaller database? [Tutorial]
Ankita KatdareNote: The TrueCaller developers have made the appropriate changes and now proper verification is required to remove a number from the database.I think no verification...
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Happy Birthday, Ankita!
Happy birthday AkD 😁 Wish you all prosperity and success ahead
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CrazyEngineers Turns 10 Today
Happy B'day CEans 🎉 And happy B'day the good admin 😁 Wishing everyone all prosperity and awesomeness ahead!
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Conversion of UPS in Stabilizer.
Yes, you can replace the battery with a rectifier. But, be warned, that's a lot of current your rectifier has to deal with. And an extra...
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Why is a Rolex Watch So Expensive?
Kaustubh KatdareI think these must be preserved as I really think they will be extinct in the next 20 years. Smartphones and now the smartwatches will...
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16x2 lcd not responding properly
Yes, it is. Use a source with higher current capacity. What is the maximum current capacity of the DC adapter you are using now and is...
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Best way to transfer money abroad or make international payment from India
That looks workable! I will try CoinPip someday soon, hopefully, if a requirement pops up.
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Best way to transfer money abroad or make international payment from India
Oops! Sorry, I was not trying to derail the other thread! I haven't found any money transfer service like WesternUnion or MoneyGram which can legally transfer...
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How humans are driving the sixth mass extinction
I guess that would be technologies for communication (I'm not talking about 4G), power generation and medical diagnosis. Then, everyone has different priorities 😒 Or everything.....
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Online UPS Vs Enumerble Voltage Stabilizers
Should you consider using an Isolation transformer and a servo stabiliser 😁 That would take stabilisation to industrial levels, at least to some extent. But, seriously...
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How humans are driving the sixth mass extinction
davefrancoWe have to change our self if we want to avoid this situation.We know it, and still we don't! Humans act late! And it is usually...
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How To Take A Good Selfie? This Deep Neural Network Has The Answers
Even if artificial intelligence is considered analogous to human intelligence in some way, the fact is, every person's taste varies and it is like one person...
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HELP! My Phone which 'Died' came back to Life!
😁 Sometimes I feel, a lot of technology can be unreliable. I stress 'sometimes'. Things are becoming more complex (and better performing too) day by day....
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Optimizing the design of a magnetic circuit actuator
I cannot comment on that now. Will have to find my text books and start reading again 😁
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Optimizing the design of a magnetic circuit actuator
AgarAlso if B = flux/Area, then is BcoreBCDA = Bgt because they have the same flux and area ?I'm not quite sure about that. But I...
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What is the concept of Live and Neutral Wires?
vamsi kancharlacurrent flows from high potential to lower potential so current flows from phase to neutralHalf of that is true "Current flows from higher to lower...
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Optimizing the design of a magnetic circuit actuator
AgarBut I can't change the design, although I can change the top airgap. I'm guessing I should make it as small as possible so that the...
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Optimizing the design of a magnetic circuit actuator
A larger gap would mean higher reluctance. But that would also mean less flux passing through that branch (path ABCD) as there is a very much...
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Optimizing the design of a magnetic circuit actuator
I tried a quick calculation. I got mmf drop in Rgt to be around 89 and that in Rgc to be 660. By the way, I...
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Optimizing the design of a magnetic circuit actuator
Definitely the flux will not be divided equally between the limbs, due to non uniform reluctance in the paths. But, I assume by carefully designing the...
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Speed Control Of Wiper Motor
What is the whole system is made closed loop. Implement some method to mechanically wipe the water drop sensor at the same rate wiper operates (might...
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The Great Indian Call Drop Issue - What's The Fix?
All I can think of are bandwidth limitations and less capable transducers. Bandwidth could be one big issue, India being one of the countries with most...
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Burning code into 8051 chip?
I read somewhere that with an RS232 voltage level shifter chip in between, serial communication could be achieved with 8051 from PC and the same channel...
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What to do after I have learnt the basics of circuits?
Parallel, series circuits and basic circuit parameters, excellent. I would suggest you get in touch with semiconductor devices and then to electromechanical devices like motors and...
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Samsung May Announce World's First Foldable Phone In January
Don't you think they already have, ten years back! 😁 Image copied from GsmArena
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Any advantage of putting vehicle on centre stand over the side stand?
Once an "automobile freak" friend commented, high-speed racing motor bikes have only centre stand. Using a side stand would make the load acting on bearings and...
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Producing energy from ceiling fan by using brushless dc motor
I would suggest you do some rough calculations and consider real life scenarios before continuing or planning items for the project. A normal PC fan wouldn't...
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Producing energy from ceiling fan by using brushless dc motor
Is it a miniature windmill that will be operated by the wind generated by ceiling fan that is in your mind?
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Now Use SanDisk Pen Drive Without Connecting It To The Device
Although it sounds interesting, it is unclear what kind of wireless connection would facilitate access to the device and data transfer. Would it be WiFi or...
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What happens to mobile phones with non-replaceable battery ?
Off-topic: But it seems Samsung wouldn't last that long, seeing the way its flagship phones fail to impress the crowd and better quality and open phones...
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COMMUNITY
This thread is in the wrong section, move to puzzles! 😁 Jokes apart, could you please try to explain or frame that question in a different...
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design consideration of washing machine control
There will be many key factors to consider when designing a machine. It would range from choosing the apt screws to designing the electrical control system....
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design consideration of washing machine control
Could you explain about that a little more. Do you want to change the way it works now or bring in some additions?
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Congratulations To CEan Ankita Katdare On Passing Japanese N2 Exam!
Congratulations! 😁
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Android M Features Overview
The app permission made me remember the old Symbian devices "This application is trying to access the camera. Grant access? Yes... No" 😁
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electricity-wifi
Visible light is an electromagnetic wave. Electrical energy can already be harnessed from light using Photovoltaic cells. Light cannot be used feasibly for electrical energy transf...
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electricity-wifi
Short answer: Yes. It has been used even ages before wireless communication came in to existence and still is being used. You should review the principle...
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VA output of a ups after 3 years of usage
The output capacity of the UPS will not be affected much by ageing. But, definitely the backup capacity of batteries could be significantly lowered depending on...
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Engine Sound
That is the catalytic converter. That is what some one said the last time I asked. I have examined my Bike a few times to find...
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Can we use internet wires to transfer the stored electric power ?
You can definitely send signals over a power line. So internet can happen over powerlines. But what would limit the possibility of sending power over existing...
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Happy Birthday Ramani Sir!
Happy Birthday sir. Wish you have wonderful days ahead..
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three pin and two pin plugs
I cannot fully agree with you. Earthing of an equipment is not done to neutralise energy stored in inductive loads. Earthing is done in any electrical...
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Calculating energy loss
I wouldn't doubt it remains a threat to the PC. We, the humans, have been using mere 12V or even 6V batteries safely to create alternating...
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No-contact chargers for electric toothbrushes
You have answered the question yourselves. Wireless charging is less efficient, costlier and requires comparitively complicated circuitry. Oscillating magnetic fields is what tran...
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Calculating energy loss
Guess I'm more comfortable with Degrees than Fahrenheit, hence I didn't take the pain to convert those 😁 I was thinking why wouldn't USB cup warmers...
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Calculating energy loss
Could my calculator be misbehaving? I got 82.8-57.2 = 30.1°C. Or am I missing something? By the way, what you said about Induction heating is right.
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Moto Turbo Specs Will Blow Your Mind; India Launch Happens Via Flipkart
The only feature that makes me jump is - "Powered by a 3900 mAh battery, that is said to be fully charged within 15 minutes, would...
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how to calculate RPM of brush less dc motor
Do you have a BLDC motor driver? Or there is a chance that the driver is built in to the motor circuitry internally. There has to...
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NSA Installed Malware on Hard Disks to Spy the World - Kaspersky Lab Exposes
#-Link-Snipped-#, It can't be removed that easily when the firmware of HDD itself is acting as the spyware. Kaspersky can't alter the HDD frimware no matter...
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Need assistance with no sound in Fedora 21
May be it'll help if you could try to remember what exactly you changed/removed/installed new just before the sound left. I'm no expert either 😁 The...
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Can cars run on alcohol? Can fuel be replaced by alcohol?
The Internal Combustion engine should get more efficient! That would solve a huge lot of everything is what I think. I've read that, in many places...
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Remove hardcoded subtitles in VLC on Windows or Mac - Anyone?
Hardcoded subtitles are like 'burned' in to the frames. Removing them is like removing the character's face from the played back frames, which is exactly identical...
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Got a job offer from Mphasis but there is some problem. Please help!
That is nice, you don't have a backlog now. I would suggest you to try obtain the elegibility criteria. "They did not mention" - this is...
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CURRENT TRANSFORMERS
Alternating Current itself changes direction 100 times per second in Indian power distribution system. A current transformer will work only if the current direction changes and...
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Who made
Did you mean the so called Compact Fluorescnet Lamps? If yes, consider switching to LEDs! By the way, when the bulb changes, shades should change too.
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My tiny battle : openFOAM
I got goosebumps on that 7th post 😁 To be honest, I thought I would skim through the post when I started. But I read it...
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WhatsApp should ask for my permission before adding me to any group
Whatsapp can give a quite obnoxious reply to that; this is our product, these are the features it have and if you don't like that, please...
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Got a job offer from Mphasis but there is some problem. Please help!
You'll get the best and most valid answer if you write to Mphasis HRM. There should be an e-mail address mentioned in the communications made by...
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How to use WhatsApp for business?
Yes, it is used quite a lot these days. But, I doubt how safe/reliable it is for confidential works or details. Product development and manufacturing status...
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Where do you store all your photos?
Biggie, would you post a quick comment on the 'plus' and 'minus' of various services you've explored? That should prove helpful to many others too I...
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Maglev Elevators - Possible?
Very well, that reads super safe. I personally don't consider anything to be "fail safe", but just "better". "Fail safe", according to me, is similar to...
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Maglev Elevators - Possible?
An extremely long linear servo motor with an intelligent drive mechanism. Should be very well possible and feasible. If either the stator or rotor (I can't...
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Vivaldi Browser Review and First Impressions
Chrome engine! Those are flooding these days 😁 I honestly wished to see Opera's original engine stay alive. But, they dropped it and fitted the Chrome!...
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Have you ever know what is the use of Black Cylindrical shaped beads(ferrite bead) in Cables.
#-Link-Snipped-#, EMI in this context is Electro Magnetic Interference. Electro magnetic induction is the generation of electro motive force when a conductor is subject to varying....
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Running a 3 phase motor on a single phase electrical circuit.
Well capacitor, I mentioned that in the first post too. A capacitor can make a phase difference of around 90 degrees when connected in series with...
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Running a 3 phase motor on a single phase electrical circuit.
May be you could explain a bit about the type of inverter and connections you made. It seems to me that you used a three phase...
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Running a 3 phase motor on a single phase electrical circuit.
The usual objective is to create a rotating magnetic field. That can be partially achieved by powering two of the windings in parallel and attaching a...
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Indian DoT Wants To Block GitHub, PasteBin, Vimeo & Archive.org
Even funnier - Govt. has Windows installed on all the computers! It can't be bigger than that!
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Indian DoT Wants To Block GitHub, PasteBin, Vimeo & Archive.org
Ridiculous! Does that mean, in near future, every Indian dweller should own a VPS somewhere else in the world and setup tunnels for unrestricted Internet access?...
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Xiaomi Mi Laptop Leaked Photos, Specs And Price Appear Online
Wonder what actually allowes them to reduce the prices like that! Is it quality? Or are they working for some secret service/govt. for spying? Hehe 😁
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DSLR With Touch Screen - Good Or Bad?
I'm quite sure no camera manufacturer will ever introduce touch controls to replace hardware buttons that already exists on DSLRs. Every DSLR user (and manufacturers too)...
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Air Asia Flight QZ8501 Emergency Contact Number Is: +622129850801
Rajni JainUpdate: Per News channels, before the lost of connection, pilot had made a very unusual request of change in route. This is still a mystery...
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Kodak DigiCams Won't Be Sold Anymore - Any Kodak Fans Sad?
Harshad ItaliyaKodak were leading company in digital camera now they're no more. This can happen with Nokia if they're not going to change their policy.LOL 😁...
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Cable Tray Decoding
Sorry, but that is very little information to comment anything. Some one here may be of help if you could say what situation you are in,...
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Microsoft Lumia 638 Launched: Cheapest 4G Smartphone at Rs 8299
What more could the phone do if it had a better/costlier processor and RAM? And, that too, with the Windows Phone OS 😁 May be they...
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Which Sport have you 'tried' till date?
Roller-Skating Wishlist 1. Sky diving 2. Skiing 3. Surfing 4. And the best - Drive in WRC (a pure wish) 😁
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Happy Birthday Lal
Thank you very much Yogesh, Vikram and Ankita 😁 The craziest of all the plans is to paint everything Red 😁 Thank you very much guys...
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Idea to develop cheapest windows pc
Well, then I guess you should advance with Linux! There is no reason Microsoft should be paid while making an affordable PC when the alternative option...
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BSNL Blocked My Favourite Torrent Site : TPB. So What I Did ?
It's not unethical. Then first it should be told to BSNL for blocking my internet freedom 😁 TPB is not about piracy alone! There are a...
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CrazyEngineers Rapid Fire Quiz Contest On 26th November, 2014 (6:00 - 11:00 PM)
Almost there 😁
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Happy CrazyEngineers Day! It's Our 9th Anniversary Today!
Happy B'day CE! And, Happy B'day Biggie!
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Caption Contest Image 5 - The Best Caption Wins! [8:00 PM - 10:59 PM]
Dare you show me that Blue Screen again! PS: This is how the Blue screen got its name - Blue Screen Of Death!
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CrazyEngineers Anniversary Special Mega Thread To Express Yourself
That is amazing work, totally totally amazing, that the whole CE team is showcasing here! I have no words, but just Bow to you all! I...
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Caption Contest Image 4 - The Best Caption Wins! [5:00 PM - 7:59 PM]
Own technology? Then, you are the Boss!
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The Great CE T-Shirt Selfie Thread - Because...Why NOT?
I'm more interested in lighting. Very even and well disperesed 😁 An artificial or well managed natural light source or a slight post processing, that is...
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The LED thread - High Power LED drivers
Tip: Aluminium square pipes can be a temporary and handy replacement for heat sinks for DIY projects at least temporarily, provided there is enough "material". Some...
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'CrazyEngineers Anniversary Week 2014' Contests Announcement!
Please let us have an umbrella as bumper price when the gadgets rain 😁 The whole CE is thrilled to the roots already and it doesn't...
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Jolla's Something Big Could Be Sailfish OS Powered Tablet Or Big-Screen Smartphone
Abhishek RawalHeard that Jolla tablet is using Intel Bay-trail chipset, so I suspect they'll be using that lame IP tainted piece of shit - PowerVR, which...
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Jolla's Something Big Could Be Sailfish OS Powered Tablet Or Big-Screen Smartphone
And, it's a tablet!
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Jolla's Something Big Could Be Sailfish OS Powered Tablet Or Big-Screen Smartphone
Update: Nokia just announced Nokia N1, an Android device priced at $249.
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Jolla's Something Big Could Be Sailfish OS Powered Tablet Or Big-Screen Smartphone
It seems to be a tablet. One of the Jolla team members had realesed a blog post a few days back about making the UI and...
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The LED thread - High Power LED drivers
Here is a video about cooling electronic components and designing a heat sink for them.
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Fake Cellular Towers Are Taking Flight In US To Track Criminal Suspects
Or may be they are using 'watch the criminals' as its function to make it sound fair, where as the original function is to get inside...
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Sharp's Night Vision CCTV Camera Records Colors Even In Total Darkness
Impressive! Super Impressive! Regenerating colour out of no-where! This, I believe, is a step which would lead to further innovations and inventions! A red coloured object...
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Xiaomi Mi 16000 mAh Power Bank - Just What You Need!
Any word about its dimensions? Couldn't find any word about it. Hope this doesn't have any tracking stuff built in 😁
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CrazyEngineers Style Upgrade
Has the forum font changed? I somehow feel it a little rough to my eyes now!
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If time machine will be invented in future, shouldn't it be here now?
That is very interesting! If the time required to travel back = time travelled back, that would turn in to an infinite loop 😁 Interesting! Time...
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Muffler design for race car
A.V.RamaniBose systems sell a noise suppressing head phone, which is a single user device. It may be possible to device something that can do this to...
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The Reason Inventors Of Blue LED Won Nobel Prize In Physics (2014)
A word though, 300lm/Watt is a figure achieved in Labs alone. Yeah, anything is possible in Labs, where all the conditions can be controlled minutely to...
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Which type of motors to be used for movement of wheel chair?
Ramesh_Kumarwe used 2 High Torque DC motors on both back wheels and front small wheels of wheel chair are self driven casters without motors.What kind of...
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problem in 12v - 230v inverter
I cannot think of a way other than using a scope. The output produced by switching FETs are square waves. But, the transformer would actually be...
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problem in 12v - 230v inverter
Do you recollect what modification helped you get an output? It is hard to say what exactly is the problem. What all modifications did you do,...
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problem in 12v - 230v inverter
You don't have to get a new one for that purpose. You can use any transformer. An old disposed transformer in some very old DC supply...
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problem in 12v - 230v inverter
1. Another thing to check will be the potentiometer and capacitor. If anyone of these get shorted, frequency of outputs will be theorotically infinite, which means,...
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problem in 12v - 230v inverter
That means, current is flowing as expected. We are still unaware of switching frequency of FETs. 1. Disconnect any one of the FETs and check if...
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problem in 12v - 230v inverter
Cannot pin point the problem! Can only say, check the components and circuit again. Remove one FET and switch on the circuit. Check if that produces...
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problem in 12v - 230v inverter
Where did the output suddenly disappear! Try this, Disconnect the transformer from the circuit. Connect mains AC supply to the 0-230V winding of transformer. Check if...
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Best motor for electric racecar - How to select?
A Brushless DC motor and a Permanent Magnet Synchronous motor are quite the same. They work the same way and are controlled the same way too....
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problem in 12v - 230v inverter
Primary side looks like it is functioning as it is supposed to be. Try these 1. Adjust pot. 2. Make sure multimeter is in AC mode...
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problem in 12v - 230v inverter
The values of voltage between Drain of both FETs and +12V terminal look alright. Current through Both Drains look alright too. I hope you measured the...
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problem in 12v - 230v inverter
Seems like the output at pin 10 is quite low. Pin 10 should also be at around 6V when measured with a DC voltmeter. Chance is...
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problem in 12v - 230v inverter
Current rating of transformer won't help. A transformer with higher current rating is required if you need to transfer more power to load. What is your...
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problem in 12v - 230v inverter
The voltage between Source and Drain of both the MOSFETS should be identical since the switching frequency is exactly the same. Wonder what could be the...
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problem in 12v - 230v inverter
That is beautiful! Atleast we have a lead. We can work on that. The transformer is 12-0-12/230V in step-up configuration. So if there is 80V at...
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What more hardware enhancement do we need to the already 'Smart' phones/tablets of this era?
*off topic* Anoop MathewWhat he meant was for processing larger images such as those used in Flex design. It runs smoothly or equally smooth but rendering...
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What more hardware enhancement do we need to the already 'Smart' phones/tablets of this era?
Photoshop runs smoothly, not sure about Battle Field. I seldom plays games.
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MOM- for those who are interested
My brain starts getting darker when I try to visualise a 'space' where universe is situated. May be I should be looking at it from a...
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What more hardware enhancement do we need to the already 'Smart' phones/tablets of this era?
#-Link-Snipped-#, my average PC does all the work you mentioned. And it's specs are comparable to most smart phones right now in the market. Theorotically, a...
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problem in 12v - 230v inverter
Actually pin 13 has an output at a different frequency - twice the frequency as that of outputs at pins 10 and 11. That is, if...
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Jolla Sailfish Will Arrive in India Within A Month!
Anoop KumarSorry to disappoint but 1st phone is total let down. 👎 #-Link-Snipped-# Why would anyone buy a new OS phone in 16.5k for 1.4Ghz dual...
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Jolla Smartphone Price In India, Specs & Features - All You Want To Know
And the answer to all those questions is a BIG YES! When a community comes forward to support and develop, even the toughest task feels as...
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So, What Do You Think About Performance Of Modi Government?
Yes, they did eliminate that. All government organisations are to accept self attested documents when originals are presented for verification.
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So, What Do You Think About Performance Of Modi Government?
And the best - Attestation by gazetted officers are not required anymore. Hehe. A student or a job seeker will sure hail Modi for this 😁
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How to fix Whatsapp "Failed. Out of memory. Please try again later." error?
Making space on phone memory helps on symbian phones. In symbian, whatsapp stores auto backup of messages at c:/data/wa/ Usually there are three copies there MsgStore.bak.1,...
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Crazy thought on Sensor technology for Vehicles.
By 'secondary energy source' I meant a second battery and electric circuit which is isolated from the main electric circuit of the care. It doesn't seem...
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Crazy thought on Sensor technology for Vehicles.
The problem here is other electricals of the vehicle. Water is a good conductor of electricity if minerals or salts are dissolved in it. And for...
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Amazon Drones Coming To India In Diwali, To Deliver Gifts In 90 Minutes
Be not surprised if Amazon finds its drones hijacked in their very first flight itself. Dare not to cross the Bermuda Indian Triangle 😁 Shoot a...
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The Great CE T-Shirt Selfie Thread - Because...Why NOT?
Kaustubh KatdarePlease make sure that they are aware of it. Else they will return it to our address.I did. I'll see if, by any chance, I...
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The Great CE T-Shirt Selfie Thread - Because...Why NOT?
CE-ans are all rocking with the Tee! 😁 Mine is stuck at DTDC. They didn't deliver to my home. Instead asked me to come and collect....
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Scream And Shout, Charge Your Phone Out - Queen Mary University Research
An amazing step ahead! Would be interesting to know how much energy it produces. Time required for charging ultimately depends on the rate of energy transfer...
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Vocal track length normalisations
Not really. I read it just now for the first time 😁
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CrazyEngineers T-Shirt Revealed + Important Announcements + Giveaway!
CrazyEngineers does it again! And this time, in style! 😁
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Being a electrical student,can i write gate cse paper?
I'm afraid you can't appear for CSE paper in GATE for being an Electrical Engineering graduate. That is what I have known till date. Will have...
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Chetan Bhagat's Half Girlfriend - Reviews
Anoop KumarWhat a lame summary, looks like Chetan Bhagat is a Bihari writter😘 Bihari boy- WTF do you mean by Bihari boy. A guy who don't...
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Free Webinar On Cyber Security Awareness Only For CEans!
It was nice. Got to know about many things. Thank you. I left in the middle too. I guess, it would have been better if the...
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Free Webinar On Cyber Security Awareness Only For CEans!
Start again. You can connect now.
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Sensors and Programs for my smart kid
I'll not be able to answer that very well for my inexperience in the domain. Let me tag #-Link-Snipped-# #-Link-Snipped-# #-Link-Snipped-#
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Free Webinar On Cyber Security Awareness Only For CEans!
If a dedicated thread will be made for asking questions, hangouts may be forgotten, I believe. It should be available to people who don't have a...
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Sensors and Programs for my smart kid
An orientation sensor along with an accelerometer may be enough to start with, I guess. Orientation sensor - Detects the position in which pen is held...
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Want To Own CrazyEngineers T-Shirt (First Batch)? Register Your Interest!
When I saw the first design of CE T-shirt, it was like Oh wow, this is awesome! But in two days time, there was a second...
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Got into second round of Intel Embedded Contest
That looks like a brushed DC motor (may be I'm worng). Wouldn't a brushless motor be better option? Brushes are prone to make sparks.
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Timer Charger
Harshad ItaliyaChangeover is also simple even with single relay we can achieve that. Make Neutral common for both socket and switch over Phase to NO and...
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Timer Charger
#-Link-Snipped-# bhai. That looks like a much simpler and easier approach. In that case, I guess, a change over time-delay relay may be chosen over electronic...
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Timer Charger
I had something similar in my mind before it gave way to making a portable charger and incorporating automatic charging cut off there. It's been quite...
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BRTS security system
Can scanning of RFIDs be carried out in the bus itself, while on transit. Or, can multiple scanners be placed on either sides of a queue...
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BRTS security system
There can be many queues. For instance, seven queues to exit, with each queue having one scanner each. That solves the 'rush' part.
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BRTS security system
I was trying to request a short explanation about BRTS. That would let people who do not know about it also be interested in the discussion.
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goTenna Helps You Communicate With Friends When Your Cellular Connection Fails
Rajni JainI second you that it is indeed a great device. However, interesting to see that howcome long-range radio waves and Bluetooth Low-Energy bases goTenna can...
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BRTS security system
*knock* A little explanation about BRTS will be very much welcome 😁
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A Glimpse Of The CrazyEngineers T-Shirt!
Visibility break through! Even though the T-shirt bends visible and invisible radiations in the electromagnetic spectrum, it is opaque to acoustic signals. I was able to...
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Is Creative crazy idea thread now most replied..........?
Are you referring to the The LOOoooooooOOOnnGG Thread 😁
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Sapphire Glass's Toughness Demonstrated. Blows Our Minds!
My Gorilla Glass Display has withstood almost all the roughness it went through. Haven't used a screen guard till date. My screen is totally clean except...
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Revealed: Why Indians hate Albert Einstein!
zaveriI do not know CV Raman either. so what ?Wish you were joking!
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FIFA 2014 Discussion Thread !
😁 a tight game that was! Somehow I felt like all quarter finals were kind of boring! I didn't see that zest in the pitch in...
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Drawing 3D Objects On Paper - [Video] - This Guy is Too Good!
#-Link-Snipped-#, Never doubt an artist. They are born to delight 😁
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Switching from System Administration To Development
Oh yes! Now you have got an opportunity to prove them wrong! If you like to be a developer, you'll glow bright. The fact is, if...
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Developing a Real Time Energy Monitoring System.
There are energy meters available with RS232 or RS485 links. And those meters do give real time readings about all the parameters you mentioned including frequency....
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Are 3G GPRS and Regular 3G Networks Different?
As of what I know, HSPA (HSDPA plus HSUPA) is an upgraded UMTS, like EDGE is to GPRS. Both are 3G, but with different capabilities, HSPA...
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Servo system installation for eliminating power disturbances
Is there a chance that you are using incremental encoder? There are mainly two types of encoders, Absolute encoder and Incremental encoder. Among these two, an...
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How to connect Bi-Wired Hi-Fi System Woofers to TV/Computer?
Yeah that is right. You could parallel the wires and connect to a common pair of terminals at the amplifier output. And, RCA part, those are...
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How to connect Bi-Wired Hi-Fi System Woofers to TV/Computer?
This should be a good read #-Link-Snipped-# Actually that will be a good read for anyone who wants to check how good their speakers/headphones perform or...
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How to connect Bi-Wired Hi-Fi System Woofers to TV/Computer?
Going through the spec, I find that we are in no luck. Inspire has an output of 6W RMW per channel for the satellite outs. And,...
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How to connect Bi-Wired Hi-Fi System Woofers to TV/Computer?
It seems like the super woofers are biwired. Now, connecting it to Creative Inspire part. The impedance of woofers are 6 Ohms. Creative Inspire is probably...
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CrazyEngineers T-Shirt Draft
Woh! I don't wanna see any changes from what is now there. What I see there perfectly reflects Crazyness and Engineering! 😁 Great work etrnalthinker!
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How to connect Bi-Wired Hi-Fi System Woofers to TV/Computer?
I'm not very familiar with this. But, lets try. I tried the Surround System (Dipole) and they work, but they can't be used alone (as they...
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Are you comfortable with the new design now?
Was the line spacing tweaked? I find the space between line quite way too much. Wonder if its only me. Possible that my browser is the...
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Commit To Stick - CrazyEngineers Stickers Showoff!
lalMine travels with me. Besides this one, My Engineer cousin snatched one from me 😁 Will try to get a snap from him. And the other...
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Online Debate Competition #3 - Does Internet kill our ability to think?
Anil JainDo you think that Steve jobs would have found something on internet before inventing Apple products? Or Internet would have helped Newton thinking why apple...
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Online Debate Competition #3 - Does Internet kill our ability to think?
Rajni JainHow many students refer books or think twice before checking Internet for the solution??I'd consider refering books and searching the internet kinda same. About thinking....
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Online Debate Competition #3 - Does Internet kill our ability to think?
Oh yes! People are expected to use their common sense and intelligence while using a resource like that, where informations cannot be validated fully. Even then,...
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Online Debate Competition #3 - Does Internet kill our ability to think?
Well, what I think is there is nothing like Internet is killing your brain. When do you search the web? When you have a question, right?...
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How to use a USB port on airtel dth?
Not sure about that either. Usually communication ports are provided to install firmware and fine tune the device. But your product can be different. Check the...
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FIFA 2014 Discussion Thread !
"The Flying Ducth Man". And that ball was connected exactly from the middle of field. Casillas didn't expect it to shake the net I guess. An...
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Amazon Packaging - Gone Wrong?
That is a World Cup Offer 😁 Well, don't ask me how it makes sense!
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