Ramani Aswath
@ramani-VR4O43 Member
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#Discussions
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#Threads
Coffee Alternatives that are better for Productivity
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Recent contributions
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Moving house is common. Moving a 6,200 Ton Building?
An amzing feat of moving an entire 122 year old building, the Machine Factory Oerlikon building in Zurich, by 60 metres foundation and all is on....
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Self cleaning surfaces - Candle Soot coating sheds both warter & oil
Amphiphobic - Repelling both oil and water is the remarkable property of this nano material film devloped by researchers at the Max Planck Institute for Polymer...
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How many cubes are on the trailer?
The only solution that is consistent with the three drawings seems to be one cube located at centre left in the top view. The red square...
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In a room of 100 people, 99% are left-handed. How many people need to leave to bring it down to 98%?
50 lefties have to leave. The lone right hander should not leave. That leaves 1 RH and 49 LH. That gives (49 LH/ 50 total)x 100...
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Answer: You have been given an elephant ... What would you do with the elephant?
The elephant is a vegetarian. No significant carbon emissions. 3D print a properly designed Howdah for a mobile office. Power pack can hang between the legs.
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Raspberry Pi Zero Guitar Pedal
Pedal-Pi is a lo-fi programmable guitar pedal that works with the Raspberry Pi ZERO Board. The project is totally Open Source & Open Hardware and made...
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Want to start on Robot Automation? A Beginner's Tour Webinar on 16th August 2018
Quote:In this webinar you will receive a step-by-step guide on how get started with robotics in automation and the key aspects to consider.From assembly and pick-and-place...
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Who is an Engineer? You are if you do order of magnitude calculations
What differentiates an engineer from a scientist? Both study the same principles. Often the same text books. The former is hands on, off the cuff, quick...
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Magnetic Gears are the new Attraction to Wind Energy harvesting
Quote: Bad things can happen when the mechanical gearbox in a megawatt-scale wind turbine gets overstressed. An unexpected wind gust can drive turbine blades hard, so...
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question for Radiation techs
Dark glasses attenuate visual radiation, ear muffs attenuate acoustic radiation. Likewise various shields can attenuate various radiations. Depends on the type and wavelength.
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Whats Ohms law equivalent in magnetic fields?
I am unaware of an equivalent law. Maybe Ampere's law relating Magneto motive force to the number of turns in a coil and the current can...
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Orient Cloud 3 Fan with CloudChill Technology : Better than AC/Cooler?
Most experts agree that air for breathing should be between RH 40 to 70%. Higher humidities can lead to problems , especially for asthmatics. Even for...
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Two questions about heat exchanger
I feel that 200,000 is pretty high. In any case friction factor for 10,000 to 100,000 does not vary much. The drawing shows individual fins and...
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Orient Cloud 3 Fan with CloudChill Technology : Better than AC/Cooler?
There is no technical difference between this and the desert cooler. Both work on the same principle water removes 0.56 kcal of heat for every gram...
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torque multiplication
<a href="https://www.societyofrobots.com/mechanics_gears.shtml" target="_blank" rel="nofollow noopener noreferrer">How to Build a Robot Tutorials - Society of Robots</a> #-Link-Sni...
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What do biomedical engineers do on a daily basis?
In the hospital context, they maintain all healthcare systems, equipment, gas supply systems and such. They do not take part in actual clinical procedures. They work...
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Zinger - World's Lightest Electric Wheel Chair
No this is not a medical device. Hence posted here. Quote: At 38 pounds, it’s the worlds lightest folding chair... that can take you 8 miles...
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Chris Guillebeau and The $100 Startup are in Bangalore 7PM 3/12/2012
Durga, ET, really missed meeting up. Why not you two write up a more detailed piece for us all for the news category. You may trigger...
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Can an engineer become a doctor?
I had a classmate in Chemical Engineering at Andhra University back in the late 1950s. He passed out , went to USA and became a good...
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nyone interested in The future world of engineering - skills
A recording of the session: Panel session recording: The future world of engineering skills and careers https://www.theengineer.co.uk/content/videos/panel-session-recording-explori...
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nyone interested in The future world of engineering - skills
Register now for The Engineer UK organized free December 6th online panel session exploring what the current era of profound technological change means for engineering organisation...
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Will a New Motorcycle Lighting Design Could Save Lives?
According to the NHTSA (National Highway Traffic Safety Association, USA), motorcycle drivers are more than 25 times more likely to die in an accident than standard...
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What should we work on next?
If the discussions are ongoing, it may be helpful for such to be upfront.
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Chemical that keeps mineral water chilled for long time
Why don’t CEans do some very basic thermal calculations? They will then know that this is theoretically impossible.
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What Are 20 of the Top Tech Companies Paying Engineers?
Design News reports: Jobsite, <a href="https://www.glassdoor.com/index.htm" target="_blank" rel="nofollow noopener noreferrer">Glassdoor Job Search | You deserve a job that loves...
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“Deepfakes” are here, now what?
Mozilla says: In a 2018 video, Barack Obama looked into the camera and warned:“We’re entering an era in which our enemies can make it look like...
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5 of the Best Free Software Stacks for AI Development
Design News says: Advances in artificial intelligence (AI) and machine learning (ML) have had a significant impact on the industrial, consumer, automotive, and entertainment market...
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Salto jumps at complex tasks with new control systems
The Engineer (UK) reports: In work being carried out for the US Army, Salto – saltatorial locomotion on terrain obstacles – has been modified for extra...
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Amazing (albeit bombastic) speech by Netanyahu at Washington DC
<a href="https://www.dropbox.com/s/qfje2vosl98gvdu/VID-20190529-WA0000.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - VID-20190529-WA0000.mp4 - Simplify you...
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How To Create A Career - Darius Foroux
Darius asks: You and I both know that a fulfilling career doesn’t come for free. The price is hard work and effort. I’m willing to pay...
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10 Breakthrough Futuristic Military Technologies to Watch
Design News reports:#-Link-Snipped-#
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Pune or Indore - Best city to study engineering?
What’s wrong with Pune? You will know on CE that the best place for engineering is inside your own head.If you have a hankering for it,...
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Boolean algebra. Need help please
#-Link-Snipped-#<a href="https://www.google.co.in/search?q=nptel+boolean+algebra&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">nptel...
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Are you prepared for the new Groups + Discussions merger?
Suppose a post put up in general category also has a special group relevance (happens often) can the poster have an option to classify it under...
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The Future is Bright: Sights and Sounds from ISEF 2019
Machine Design says: Senior Technology Editor Bill Wong made the trip to the Intel International Science and Engineering Fair in Phoenix, which attracted over 1,800 top...
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What should come in the place of question mark? Can you find the pattern?
B 14, I think.Subtract 1 from each peripheral number and multiply all.(4-1)x(3-1)x(5-1) = 3x2x4 = 24(3-1)x(7-1)x(2-1) = 2x6x1 = 12So, (8-1)x(3-1)x(2-1) = 7x2x1 = 14
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15 Puzzles That Will Keep You Up All Night
World Industrial Reporter has this:#-Link-Snipped-#(Tried posting on puzzles group. Could not open the dialogue box. Hence here)
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Braided frame keeps very light rail on track
Engineer (UK) says:Â The frame, which is weaved, or braided, from carbon fibre composites into a series of tubes that can be easily fitted together, has...
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Engineering expertise is a powerful communication tool. Do we use it?
Engineer (UK) says: Engineers solve the world’s most complex and important problems. They should use that expertise in their marketing, says David Lewis, director of Me...
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What are the best open innovation platforms/communities for engineers?
Two (best or not) are:Engineers Without Bordershttp://ewb-international.com/Engineering World Healthhttps://www.ewh.org/
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The Best Free Apps and Software You're Not Already Using
Disclaimer: No idea about any of these. For what it is (if it is) worth:<a href="https://gizmodo.com/the-best-free-apps-and-software-youre-not-already-using-1834792226" target="_bl...
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Five essential business skills for engineering entrepreneurs
Ana Avaliani of the Royal Academy of Engineering discusses why it is critical that we close the business skills gap to drive engineering enterprise.#-Link-Snipped-#
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A deeper look into NERA – the world´s first fully 3D printed E-Bike by NOWLAB
Engineer(UK) says: BigRep unveiled the NERA E-Motorcycle on November 13, 2018 at Formnext and it went viral!Now let’s take a deeper look at how the world’s....
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How do I calculate the future cooling demand
Since it is a green house, solar radiation will be the maximum load, added to this will be the 1700.05 kW from lighting. The peak worst...
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How do I calculate the future cooling demand
Just what I suspected. Then the roof is probably glass, maybe tinted, which will reduce the transmitted solar wattage. Greenhouses are used when the outside ambient...
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Five-seater electric air-taxi lifts off in Munich
Engineer (UK) says: German startup Lilium has completed the maiden flight of its all-electric air-taxi, a five-seater VTOL tiltjet capable of covering 300km in 60 minutes.#-Link-Sn...
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How do I calculate the future cooling demand
What is this total area of 7700 m^2? Floor area? Area of walls plus floor plus roof.It is impossible to get any meaningful figure unless one...
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Will a load below the fatigue limit cause breakage on a piece of immobile iron?
At ambient temperatures and stress levels well below the yield stress there should be no relaxation in a truly elastic material.In some old churches in Europe...
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How do I calculate the future cooling demand
Thee are too many loose ends in the description. If the total area is 7700 m^2, it cannot all be in one plane. The biggest heat...
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What is mean by MIG in electrode
I am guessing. MIG may refer to Metal Inert Gas welding. Consumable electrodes are used for this.#-Link-Snipped-#
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Will Blockchain handcuff the hackers and cut corruption?
If the above can happen as suggested by 'Electropages', Blockchain will be blocked by most governments.<a href="https://www.electropages.com/blog/2019/05/will-blockchain-handcuff-h...
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A truly CE idea: Put out a fire in space by vacuuming it
Tech Briefs says:Researchers from the Toyohashi University of Technology in Japan have developed a new type of fire extinguisher that is optimized for space-use and does...
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Stress relaxation limit for steel
Stress relaxation is more applicable to viscounts-elastic material like glass, polymers and composites.Steel, within the elastic limits at ambient temperatures, is quite unlikely t...
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Will a load below the fatigue limit cause breakage on a piece of immobile iron?
Consider this. The bottom portion of the column has been under more than 5 tonnes compressive load since 402 AD. However, it is only 5 kg/sqcm,...
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Will a load below the fatigue limit cause breakage on a piece of immobile iron?
Creep happens at a higher temperature. Nothing much happens at ambient temperatures.Here is a description of the famous iron pillar at Delhi built in 402 AD,...
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Will a load below the fatigue limit cause breakage on a piece of immobile iron?
Creep is another process that can cause problems in certain metals even when they are stressed well below their yield strength. In the case of iron...
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Will a load below the fatigue limit cause breakage on a piece of immobile iron?
Not likely. However, stress corrosion cracking is possible in such cases.#-Link-Snipped-#<a href="https://en.wikipedia.org/wiki/Stress_corrosion_cracking" target="_blank" rel="nofo...
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How to remove water from liquid digestate?
My apologies. Sea water has nearly 3.5% salt not 1%, almost the same solid content as the residue you are looking at.
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Internship at BHEL for second year biomedical engineering student
Where are you doing your biomedical engineering studies?Aravind eye hospital in Puducherry does some amount of biomedical research related to sight. Have you checked out if...
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How to remove water from liquid digestate?
In my opinion the solar open pond evaporation process used for salt from sea water ( solid content about 1%) can be applied to this. It...
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Why does a motor take 1 ampere when current passes through auxiliary contacts, whereas it takes 10 ampere?
In a single phase motor, W= VxIx cos(phi).Full load current of a 1 hp induction motor will be about 8 amps taking into account power factor.You...
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Why does a motor take 1 ampere when current passes through auxiliary contacts, whereas it takes 10 ampere?
The question is not clear. A sketch of the circuit may help.
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Learn The Entire Python Language In A Single Image
The only pythons I know of were some in my grandfather's farm and a huge one that I saw in Thekkadi sanctuary in Kerala. No idea...
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How to Write Email with Military Precision?
From Pocket: A few tips on how to craft emails to quickly and clearly relay messages and avoid miscommunication.<a href="https://getpocket.com/explore/item/how-to-write-email-with-...
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Classical Automation enters the Alien World of IT
DesignSpark says: In the first of a new series, Dr Volker de Haas, designer of the open source PLC/IPC Revolution Pi, explains the core differences between...
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The Best Space Movies of the Last 10 Years
Design invites: Take a look at how space has been portrayed in film over the past decade, from nonfiction movies such as First Man to space...
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Changing an Atom or Two of an Electrochromic Material Changes its Color
Machine Design says: A serendipitous discovery by a grad student at the Georgia Institute of Technology has led to materials that quickly change color from completely...
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How to create awesome PPT for seminar
#-Link-Snipped-# has given (without a PPT!) all that needs to be done.If the audience are peers, you can be technical all the way. If it is...
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Uses of slew rate or rise time.
<a href="https://ieeexplore.ieee.org/abstract/document/1084518" target="_blank" rel="nofollow noopener noreferrer">A model for slew-induced distortion in single-amplifier active fi...
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How to convert cable thermal losses [Watts] into enthalpy?
1 kwhr = 860 kcals 15 watts adds 13 kcals of heat in an hour. That much extra has to be removed by the cooling system.
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Im asking of ideas to add to my project also how to calculate how much solar panels generate?
A solar tree is a large scale solar power generator. Why do you need that for charging phones? Solar trackers themselves need power and are complicated...
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The jet propulsion with closed combustion type
The crucial issue may have to do with the door mechanism.How do the doors open and close? What is the fatigue life for such a mechanism?
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Why zener diode conducts currents in reverse but why not semiconductor diode?
<a href="https://nptel.ac.in/courses/122106025/9#" target="_blank" rel="nofollow noopener noreferrer">NPTEL IITm</a>
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Intel and Cray Will Deliver First Exoscale Supercomputer to National Lab
Machine Design says: Intel Corp. and Cray Inc. will deliver the first supercomputer with a performance of one exaFLOP. It will be named Aurora and be...
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"4 Crazy Medtech Innovations" That Are Tearing up the Script
MD&DI says: Decision Resources Group (DRG) released a new report today, "4 Crazy Medtech Innovations" that identifies four areas of medtech innovation that are forecasted to...
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Webinar on AI for embedded system developers
Design News says:Join us today at 2:00 PM EDT for the start of this week’s course Machine Learning for Embedded Software Engineers.Artificial intelligence has long been...
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Graduation research project about using FRP for strengthening tubes
This is not about tubes. However, it does cover Civil engineering applications:#-Link-Snipped-#
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Graduation research project about using FRP for strengthening tubes
<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=thin+walled+composite+tubes&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>
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Graduation research project about using FRP for strengthening tubes
This is a materials science project. FRP tubes are mature products. Any number of them are freely available in the market. What is the specific research...
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Avishkaar Summer Internship Program 2019
I got introduced to Avishkar through CE.They have come up with an exciting summer internship programme for 2019. CEan students can have a look.Avishkar asks:Are You...
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Facebook Has Released a Machine Learning Tool to Help Engineers Code
Design News says:Engineers will often write code that can be similar or identical to code used elsewhere. A tool that allowed programmers to search though the...
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Discussion about Thermoelectric
Seebeck effect is what you observe with a thermocouple. When there is a temperature difference between two junctions of dissimilar metals a voltage difference arises between...
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Discussion about Thermoelectric
Details missing. Unable to make out what is required.
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Need help building UI for partially/blind people
Many will be colour blind as well. This may have to be figured in. Will all be able to read English?If the sight is really poor...
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Meet Blue, the Low-Cost, Human-Friendly Robot
Robots may have a knack for superhuman strength and precision, but they still struggle with some basic human tasks such as folding laundry and making a...
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Displacement settlements. Surface Water Management
<a href="https://www.google.com/search?q=Disaster+management+in+India&client=firefox-b-d&tbm=isch&source=iu&ictx=1&fir=TXcMhzkLLX9UhM%252CxeVy7KfkuFqptM%252C_&vet=1&usg=AI4_-kThyEW...
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Displacement settlements. Surface Water Management
In most of India disaster management is a disaster in itself. Usually there is shortage of water even for essentials unless the emergency is due to...
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A Black Hole Has Been Photographed for the First Time
Design News says: By its very definition, a black hole cannot be seen . They are so dense no light can escape from them. What the...
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Yngwie Malmsteen goes heavy on ‘unbreakable’ guitar
A truly Crazy hard core engineering to make a  Guitar!Engineer (UK) says: An ‘unbreakable’ 3D printed guitar has been given the heavy metal treatment by.....
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What is the future of aluminium manufacturing in India?
As of now there is no disruptive technology to produce Al economically other than the present fused salt electrolysis. The bauxite has to be purified as...
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What is the future of aluminium manufacturing in India?
Government subsidies still continue in China.The group I work for is a very large consumer of aluminium. Aluminium economics is a major daily issue.There is also...
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What is the future of aluminium manufacturing in India?
It is the government subsidies that causes the discrepancy.#-Link-Snipped-#
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What is the future of aluminium manufacturing in India?
The real raw material for aluminium is not bauxite, which we have in plenty, but electric power, which is an issue. About 40% of the cost...
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Can This Basketball-Playing Robot Beat a Professional?
World Industrial Reporter says: Japanese engineers have developed CUE3, a basketball-playing robot designed to make three-point shots. It only hit five out of eight on a...
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Proposed Supercomputer Will Be Six Billion Times Faster Than a Cray-1
Design News says: A breathtakingly fast computer being developed by Cray Inc. and Intel Corp.may help address some of the world’s most inscrutable science and engineeri...
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Difference between career graph of core jobs vs IT jobs - Can anyone share a long term view?
I use Tony Buzan's mind mapping a lot. Found this in his book: 'The Mind Map Book'.Gives an idea of one person's concept of an ideal...
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Difference between career graph of core jobs vs IT jobs - Can anyone share a long term view?
There is a Tamil saying: “போதுமென்ற மனமே பொன் செய்யும் மருந்து“meaning: A contented mind is a gold spinner.As they say, in the end we are all dead.In...
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Most Embedded System Failures Can Be Prevented
Design News says: Early awareness of problems is the key to circumventing failures of embedded electronics, an expert will tell attendees at the upcoming Embedded Systems...
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Help or advice on how to manufacture this product?
If the spirals are nesting, that is, when looked from the top one sees all the spirals one within the other, you can injection mold in...
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FindyBot3000 - a Voice Controlled Organizer, just the thing for crazy disorganised EEs
As any maker can attest, over the years, one collects a lot of parts. Perhaps it all started with a few resistors and LEDs, a breadboard,...
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Free E-Book: Turnabout: Auto Industry Heads Toward Electrification
Design News says:The inevitable is upon us.After a quarter-century of fitful stops and starts, the auto industry has accepted the inevitability of electrification. General Motors i...
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Handling Trillions of Supercomputer Files Just Got Simpler
Machine Design says: A new distributed file system for high-performance computing, Delta FS, was developed by computer scientists at Los Alamos National Laboratory and Carnegie Mel...
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What career choice should I make?
#-Link-Snipped-# ,please see this trail:#-Link-Snipped-#
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What career choice should I make?
In the face of adversity, are you a Guernsey or a Brahman?#-Link-Snipped-#Â
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Is it possible to give insurance to all electronic appliances?
<a href="https://reference.wolfram.com/language/guide/ActuarialComputation.html" target="_blank" rel="nofollow noopener noreferrer">Actuarial Computation—Wolfram Language Documenta...
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Can you give me a examples of graduation project in GIS ?
<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=g+i+s+grad+level+project&btnG=" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>
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How about a Neck Through Bass Guitar?
This instructable describes how to build a neck-through electric bass guitar with only a minimal number of electric tools.#-Link-Snipped-#
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I've never used this before any suggestions?
Though nominally an engineering forum, CE is a no holds barred place. No subject is taboo. Philosophy, cosmology, quantum physics, chemistry, biology and even sociology have...
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More Than Bitcoin: 8 Industries Being Innovated by Blockchain
Design News says: For those just beginning to understand blockchain technology it may seem that its that same thing cryptocurrency, particularly Bitcoin. What's lesser understood i...
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Electro static pracipitator required power calculation?
<a href="https://www.google.co.in/search?q=t-r+set+for+electrostatic+precipitator&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">t-r s...
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Electro static pracipitator required power calculation?
Such detailed engineering is beyond the scope of this site. Someone may perhaps be able to help.
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Sir, please suggest me a topic for last year engineering project civil engineering ?
Temporary Relief architecture with built-in solar power for providing immediate temporary relief in disaster hit areas can be a useful project.Some ideas from here:#-Link-Snipped-#...
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Saying Goodbye is Never Easy - Machine Design Editor Carlos Gonsales
Carlos says: Face front, true engineers! Alas, this will be my last editorial with Machine Design. I will be taking on a new role at the...
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Do you want to take part in Designing for Children?
Designing for Children is being organized for the 2nd time from 6th to 8th of December 2019 at the IDC School of Design (IDC), Indian Institute...
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What do you think about Netflix's Mobile-Only Rs. 250/month Plan?
Both my son and daughter have subscriptions for both Amazonprime and Netflix. Valid for viewing in five parallel viewing worldwide. Already configured on two iPads.We never...
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With Stadia, Is Google Promising More Than the Cloud Can Deliver?
Google claims it can stream all your high quality video games to any device you own via the cloud. And if you take a step beyond...
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Bloodhound land speed record attempt relaunches under new ownership
The Engineer(UK) reports: The familiar blue and orange livery is gone, and the “doghouse” headquarters near the Bristol docks is no more, but team Bloodhoun...
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Can anything be crazier than this?
God save us from God-men like Niyananda<a href="https://www.dropbox.com/s/ukgvkc6ce83fank/Nitya.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - Nitya.mp4 - S...
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What is the difference between efficiency and gain?
I apologise for an arithmetic error in my first post. 5 Kcal/min added to 5 litres of water will increase the temperature by 5/5=10C/min and not...
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What is the difference between efficiency and gain?
Take the water example 10 KCal/ Min was put in. What was the output? Not the 5 Kcal lost by radiation and evaporation but the %...
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What is the difference between efficiency and gain?
Input -> System -> OutputOutput/Input x 100 = %Efficiency1 kg diesel put into an engine say gives an output of 4.6 KWHr. ! kg diesel gives...
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I need to solve the errors in my pan card: help me
Have you tried here?#-Link-Snipped-#
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Fresher student how to meet job
<a href="https://www.google.co.in/search?q=civil+engineering+jobs+for+freshers+India&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">ci...
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Can a gyroscope change its rotating direction?
<a href="https://www.youtube.com/watch?v=ejuoMvLugY4" target="_blank" rel="nofollow noopener noreferrer">Stroboscopic effect due to tubelight (when half propellor is white) - YouTu...
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Can a gyroscope change its rotating direction?
#-Link-Snipped-# , while you are right the thing happened when he was seeing with his eyes. That can happen at speeds which are near multiples of...
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Can a gyroscope change its rotating direction?
No. A free spinning Gyro cannot change its direction of rotation on its own during a run. One can start a gyro in either direction. One...
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how to design a sluice valve for 10 inch diameter pipe using Indian standrad 14846:2000?
Do you mean a gate valve? Generally sluice valves are used in an open system and gate valves in a pipe. Both use a wedge to...
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Posted #Threads
3 Challenges Collaborative Robots Need to Overcome
Design News says: Over the past few years, the world of small robots has expanded considerably. Robots have become affordable for smaller manufacturers. The result is...
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How to determine Yield Strength from ultimate tensile strength of a material?
<a href="https://www.google.co.in/search?q=nptel+yield+strength&ie=UTF-8&oe=UTF-8&hl=en-in&client=safari" target="_blank" rel="nofollow noopener noreferrer">nptel yield strength -...
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