Ramani Aswath

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...

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...

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...

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...

Login success

First time login to the new CE worked fine.

4e4f9cd5-6860-4032-a958-e4005af36f1f

The elephant is a vegetarian. No significant carbon emissions. 3D print a properly designed Howdah for a mobile office. Power pack can...

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 &...

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...

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,...

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...

0518ca85-3d3b-4a16-8d5d-c477c230c8d0

Dark glasses attenuate visual radiation, ear muffs attenuate acoustic radiation. Likewise various shields can attenuate various radiations. Depends on the type...

13953192-3ea9-40bb-ba80-e0f17cc476b5

I am unaware of an equivalent law. Maybe Ampere's law relating Magneto motive force to the number of turns in a coil...

86cc77ec-409b-46d3-898a-a04eed123016

Most experts agree that air for breathing should be between RH 40 to 70%. Higher humidities can lead to problems , especially...

2f836c08-49ff-459c-8cde-a14449381f2d

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...

25cfb2b9-1c8a-4029-894d-e67fcdbd9b1e

There is no technical difference between this and the desert cooler. Both work on the same principle water removes 0.56 kcal of...

00670f95-4f35-4310-bcc1-0d72034f306b

<a href="https://www.societyofrobots.com/mechanics_gears.shtml" target="_blank" rel="nofollow noopener noreferrer">How to Build a Robot Tutorials - Society of R...

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In the hospital context, they maintain all healthcare systems, equipment, gas supply systems and such. They do not take part in actual...

Zinger - World's Lightest Electric Wheel Chair

No this is not a medical device. Hence posted here. Quote: At 38 pounds, itâ&#128;&#153;s the worlds lightest folding chair... that can...

28fb6acb-f721-408a-bd96-8b60b4bff9e7

Durga, ET, really missed meeting up. Why not you two write up a more detailed piece for us all for the news...

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I had a classmate in Chemical Engineering at Andhra University back in the late 1950s. He passed out , went to USA...

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A recording of the session: Panel session recording: The future world of engineering skills and careers https://www.theengineer.co.uk/content/videos/panel-sessi...

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...

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...

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If the discussions are ongoing, it may be helpful for such to be upfront.

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Why don’t CEans do some very basic thermal calculations? They will then know that this is theoretically impossible.

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 deser...

“Deepfakes” are here, now what?

Mozilla says: In a 2018 video, Barack Obama looked into the camera and warned:â&#128;&#156;Weâ&#128;&#153;re entering an era in which our enemies can...

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,...

Salto jumps at complex tasks with new control systems

The Engineer (UK) reports: In work being carried out for the US Army, Salto â&#128;&#147; saltatorial locomotion on terrain obstacles â&#128;&#147; has...

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-WA000...

How To Create A Career - Darius Foroux

Darius asks: You and I both know that a fulfilling career doesnâ&#128;&#153;t come for free. The price is hard work and effort....

10 Breakthrough Futuristic Military Technologies to Watch

Design News reports:#-Link-Snipped-#

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What’s wrong with Pune? You will know on CE that the best place for engineering is inside your own head.If you have...

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#-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 noopene...

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Suppose a post put up in general category also has a special group relevance (happens often) can the poster have an option...

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...

4ae0037f-5af0-437b-8fbc-bd00f9222e9a

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) =...

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)

Braided frame keeps very light rail on track

Engineer (UK) says: The frame, which is weaved, or braided, from carbon fibre composites into a series of tubes that can be...

Engineering expertise is a powerful communication tool. Do we use it?

Engineer (UK) says: Engineers solve the worldâ&#128;&#153;s most complex and important problems. They should use that expertise in their marketing, says David.....

4ff95e52-2952-45c4-835f-9a5eb6929d72

Two (best or not) are:Engineers Without Bordershttp://ewb-international.com/Engineering World Healthhttps://www.ewh.org/

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-183...

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...

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 letâ&#128;&#153;s take a deeper look...

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Since it is a green house, solar radiation will be the maximum load, added to this will be the 1700.05 kW from...

6e54b6f5-cadb-4700-af39-4812cbfeb7ed

Just what I suspected. Then the roof is probably glass, maybe tinted, which will reduce the transmitted solar wattage. Greenhouses are used...

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...

0be1fa2e-9fbd-4558-936f-bcaac0db3a05

What is this total area of 7700 m^2? Floor area? Area of walls plus floor plus roof.It is impossible to get any...

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At ambient temperatures and stress levels well below the yield stress there should be no relaxation in a truly elastic material.In some...

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Thee are too many loose ends in the description. If the total area is 7700 m^2, it cannot all be in one...

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I am guessing. MIG may refer to Metal Inert Gas welding. Consumable electrodes are used for this.#-Link-Snipped-#

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-b...

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...

8fc7ed15-c834-4012-9d3a-e1f6f2dbd565

Stress relaxation is more applicable to viscounts-elastic material like glass, polymers and composites.Steel, within the elastic limits at ambient temperatures,...

73241713-d636-473c-99f1-cd8bfaa4881e

Consider this. The bottom portion of the column has been under more than 5 tonnes compressive load since 402 AD. However, it ...

0c8c0ae1-a1c0-4a62-8992-47622d863a3e

Creep happens at a higher temperature. Nothing much happens at ambient temperatures.Here is a description of the famous iron pillar at Delhi...

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Creep is another process that can cause problems in certain metals even when they are stressed well below their yield strength. In...

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Not likely. However, stress corrosion cracking is possible in such cases.#-Link-Snipped-#<a href="https://en.wikipedia.org/wiki/Stress_corrosion_cracking" targe...

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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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Where are you doing your biomedical engineering studies?Aravind eye hospital in Puducherry does some amount of biomedical research related to sight. Have...

a9c875e8-c0a6-47d6-b09c-d76426cdfb13

In my opinion the solar open pond evaporation process used for salt from sea water ( solid content about 1%) can be...

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#-Link-Snipped-#

2d50a442-dfc9-4887-8b73-888b2b25eac4

In a single phase motor, W= VxIx cos(phi).Full load current of a 1 hp induction motor will be about 8 amps taking...

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The question is not clear. A sketch of the circuit may help.

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...

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-...

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 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...

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...

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#-Link-Snipped-# has given (without a PPT!) all that needs to be done.If the audience are peers, you can be technical all the...

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<a href="https://ieeexplore.ieee.org/abstract/document/1084518" target="_blank" rel="nofollow noopener noreferrer">A model for slew-induced distortion in single...

7a6ca285-28a4-4a0f-96c7-8b3548aeee64

1 kwhr = 860 kcals 15 watts adds 13 kcals of heat in an hour. That much extra has to be removed...

65b2bce6-4daa-4637-a3e2-23bbdb2b9ffb

A solar tree is a large scale solar power generator. Why do you need that for charging phones? Solar trackers themselves need...

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#-Link-Snipped-#

9ecf7373-a3e9-4c7f-8c96-cb519a4bdcb0

KABOT   GOAT   CEREBO  BALLOT   EXBOT   TINYTOT   MEGABOT

23b04b80-173c-453c-a26b-9ec84ab90177

The crucial issue may have to do with the door mechanism.How do the doors open and close? What is the fatigue life...

732384b2-d8c0-4069-b80c-47c85608a255

<a href="https://nptel.ac.in/courses/122106025/9#" target="_blank" rel="nofollow noopener noreferrer">NPTEL IITm</a>

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...

"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...

Webinar on AI for embedded system developers

Design News says:Join us today at 2:00 PM EDT for the start of this weekâ&#128;&#153;s course Machine Learning for Embedded Software Engineers.Artificial...

fbe4f366-07ff-4b5b-b74f-ace5cfd82452

This is not about tubes. However, it does cover Civil engineering applications:#-Link-Snipped-#

93378304-6c7f-456c-b92c-39609e82be4e

<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...

The all-new Avishkaar Maker Studio makes personalization possible!

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ea79ee9a-b93d-4237-b953-2558c90ec42e

This is a materials science project. FRP tubes are mature products. Any number of them are freely available in the market. What...

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...

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...

b85d5d66-061b-41a3-9f47-f24d5fd50c82

Seebeck effect is what you observe with a thermocouple. When there is a temperature difference between two junctions of dissimilar metals a...

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#-Link-Snipped-#

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Details missing. Unable to make out what is required.

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Many will be colour blind as well. This may have to be figured in. Will all be able to read English?If the...

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...

ad5b78d0-7010-4279-9729-2860fd4db008

<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_&v...

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In most of India disaster management is a disaster in itself. Usually there is shortage of water even for essentials unless the...

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#-Link-Snipped-#

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...

Yngwie Malmsteen goes heavy on ‘unbreakable’ guitar

A truly Crazy hard core engineering to make a   Guitar!Engineer (UK) says: An â&#128;&#152;unbreakableâ&#128;&#153; 3D printed guitar has been given the...

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As of now there is no disruptive technology to produce Al economically other than the present fused salt electrolysis. The bauxite has...

1a6140e2-6165-4d47-96af-935e03b243c6

Government subsidies still continue in China.The group I work for is a very large consumer of aluminium. Aluminium economics is a major...

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It is the government subsidies that causes the discrepancy.#-Link-Snipped-#

d279f880-0e4c-41f3-a188-13d5feb80326

The real raw material for aluminium is not bauxite, which we have in plenty, but electric power, which is an issue. About...

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...

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 worldâ&#128;&#153;s most...

d5ce6a5b-e390-4ac5-83e5-b1edb288841d

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...

cae9b9b2-e007-4e9c-96b7-93442583b400

There is a Tamil saying: “போதுமென்ற மனமே பொன் செய்யும் மருந்து“meaning: A contented mind is a gold spinner.As they say, in the end...

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...

d9fcbf09-6629-4bfa-b9d0-295aba5eff6c

If the spirals are nesting, that is, when looked from the top one sees all the spirals one within the other, you...

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...

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...

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...

273459d4-0b15-4fca-aeb9-33665d482005

#-Link-Snipped-# ,please see this trail:#-Link-Snipped-#

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In the face of adversity, are you a Guernsey or a Brahman?#-Link-Snipped-# 

5d6c7da8-6281-4bed-917d-cec17e197ad4

<a href="https://reference.wolfram.com/language/guide/ActuarialComputation.html" target="_blank" rel="nofollow noopener noreferrer">Actuarial Computation—Wolfra...

421c224a-486d-4210-a11a-dbb274f16395

<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 Sch...

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-#

7d3559a7-1507-4e58-b103-c65665e1f862

Though nominally an engineering forum, CE is a no holds barred place. No subject is taboo. Philosophy, cosmology, quantum physics, chemistry, biology...

29deb478-c453-4199-9a0d-8ee638e77a88

#-Link-Snipped-#

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....

33037f28-ea9a-4ab1-becd-83a055b92c46

<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 noopen...

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Such detailed engineering is beyond the scope of this site. Someone may perhaps be able to help.

5f100600-f5f6-44b0-b2e8-618ba99f45f8

Temporary Relief architecture with built-in solar power for providing immediate temporary relief in disaster hit areas can be a useful project.Some ideas...

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...

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...

8db285ce-3183-4b85-a0e4-2654a909d5f6

Both my son and daughter have subscriptions for both Amazonprime and Netflix. Valid for viewing in five parallel viewing worldwide. Already configured...

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...

39a8572b-cd0f-4422-8623-3451c7d0e23a

I pass.

Bloodhound land speed record attempt relaunches under new ownership

The Engineer(UK) reports: The familiar blue and orange livery is gone, and the â&#128;&#156;doghouseâ&#128;&#157; headquarters near the Bristol docks is no more...

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">Dro...

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I apologise for an arithmetic error in my first post. 5 Kcal/min added to 5 litres of water will increase the temperature...

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Take the water example 10 KCal/ Min was put in. What was the output? Not the 5 Kcal lost by radiation and...

887b5651-4364-4bf8-9c3a-4baeeba2add4

Input -> System -> OutputOutput/Input x 100 = %Efficiency1 kg diesel put into an engine say gives an output of 4.6 KWHr....

4edfdf45-4363-4da3-8732-65c46ee5205d

Have you tried here?#-Link-Snipped-#

5df6969a-d1e6-4153-804a-f28b08f69676

<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 noo...

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<a href="https://www.youtube.com/watch?v=ejuoMvLugY4" target="_blank" rel="nofollow noopener noreferrer">Stroboscopic effect due to tubelight (when half propell...

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#-Link-Snipped-# , while you are right the thing happened when he was seeing with his eyes. That can happen at speeds which...

8ea7f37c-4785-44f2-ab63-36d8e429cec3

No. A free spinning Gyro cannot change its direction of rotation on its own during a run. One can start a gyro...

eeb412ea-137e-4bdc-a527-fcc8302cb920

Do you mean a gate valve? Generally sluice valves are used in an open system and gate valves in a pipe. Both...

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...

606c8922-737d-4344-abf1-12ac5d9e58e3

<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">npt...

74603ced-98e0-452b-9540-c409df3af8f9

#-Link-Snipped-# , thereâ&#128;&#153;s a much simpler solution doing the same thing that you want.#-Link-Snipped-#

29033c2c-2a1f-4ddd-9fa1-924973b00c3c

Blocking cell phones may be possible by generating a matching noise signal that drowns the data signal. It is the general AM...

d7911151-7a04-47d9-abb7-90355cce0fc9

Can you jam sunlight or moonlight by coding?An umbrella is needed. Likewise you need a radiation shield, like a Faraday cage for...

d5d90892-49d5-42f5-b5ff-a0bd734482e2

You have to contact them through instructables only.<a href="https://www.instructables.com/member/rjc287/" target="_blank" rel="nofollow noopener noreferrer">Rj...

95d3b3f7-b6ca-43a8-be8e-5aa445a8c2d8

I had designed an ESP system for precipitating talcum powder dust from an equipment that was used to apply this powder on...

7d3325e2-659f-4d90-be0b-a228b4a0c58f

#-Link-Snipped-# , I am writing from just the chemistry point of view. I have not done anything on flue gas scrubbing.We id...

This week’s poll from The Engineer (UK): “killer robots” and AI in warfare

 Isaac Asimov proposed "Three Laws of Robotics"1. A robot may not injure a human being or, through inaction, allow a human...

Human Engineering - We are One

<a href="https://www.dropbox.com/s/xsw7bti8gnk47y6/RIP%20Emily.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - RIP Emily.mp4 - Simplify y...

c6770337-b28d-4522-8498-6e202fac93b7

Not really. You can do it with water alone as mentioned earlier. But if a pH of 12 is specified, then you...

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<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=lightweight+aggregates+suitable+for+concrete&btnG=" target="_blank" rel="nofollow noopener no...

1f398f38-d7ae-49ad-91b8-f0f1e328c7f7

The problem is that NaOH reacts with SOx and gets consumed. This will drop the pH. You have to add more NaOH...

7b6a6971-d21a-455d-94c9-e35cb83bb1e8

I too wanted to tell you about AI for all autonomous vehicles. Please check out some of the posts in the robotics...

dac0d508-c412-423f-8039-a0124c0184d6

If your requirement is only pH maintenance 4.8 kg NaOH in 12 m3 water will give a pH of 12 as you...

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This is not exactly what you wanted #-Link-Snipped-# , but may give some clues:#-Link-Snipped-#

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Actually you will need more than that amount. 75 kg/hr is the theoretical amount of Naoh needed to absorb the amount of...

cb3783ce-3734-4ffb-9efb-d9ee4767b55e

#-Link-Snipped-# , every domestic solar water heater is a thermal battery and it works. What is this operating time that is raised...

0b8b14aa-0128-4776-b796-c50d5dc381d4

Considering the number of operations involved, it is unlikely that a workable machine that can be pulled by a couple of oxen...

85d5d2c4-a32a-4bd1-9737-25d0ab26c9f4

Can you look at another option. Many US universities offer combined masters and PhD programs. Maybe a masters in maths and a...

bb15d6e2-5450-48b0-9369-c0110e7d799f

#-Link-Snipped-# , if you are posing your question to me, I need a while to reply. If  Any other member has...

79ea2c4a-ab74-42ff-861a-d7c902407615

Most engineers manage to get by with school arithmetic. Having said that, almost all branches of engineering (except metallurgy perhaps) use advanced...

1e9ed165-c732-4e65-9b5c-9a8fb52375d2

#-Link-Snipped-# , maybe we can try a different tack. Train to be a pilot and take a job flying private jets. Then...

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#-Link-Snipped-#INR 60,000 x n  where n is the number of flight hours in a month in addition to whatever you feel...

483843a8-c8b0-44fa-a276-db47eb6f943b

#-Link-Snipped-# , I agree about cooking skills. Though I have workd a lot on food processing as a Chem E, I cannot...

c2354f1f-b7e5-47e8-87bc-d3be7eafff47

From the data you indicated, the theoretical requirement to absorb the nearly 60 kg/hr SO2 produced is about 75 kg NaOH/hr.Are you...

Self-made billionaires prove you can't be successful if you don't make time for these 6 things every day

Success isn't easy â&#128;&#148; and it certainly doesn't happen overnight, but there are little things you can do every day to ensuring...

Can robots go crazy too and do a 360 degree backflip?

Engineer (UK) reports: Mini Cheetah, a new four-legged robot developed by engineers at MIT in the US, has become the first system...

6f2cfdf1-eba9-4744-b267-8be3d61d4af0

Is this an academic problem needing theoretically correct analytic solution or a practical problem? If a good approximation is sufficient one can...

a917a897-e48e-4ab5-bf10-0abc002ae453

Assuming 1.3 kg/m3 Fluegas density and taking into account the properties of SO2 one gets 1.86 x 40 or about 75 kg...

bef21e04-0c2b-4fb4-a495-41910565f57f

Since this is a dynamic situation it is not possible for the whole steel ball to be at one temperature as the...

52ccd192-0979-4c91-b1a3-17eb06fbc135

Theoretically two gm moles of NaOH will absorb one gm mole SO2 . However many other factors have to be considered in...

f4abf78f-54fc-4557-acc9-706dd10073a9

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=High+altitude+transsonic+aerodynamics&btnG=" target="_blank" rel="nofollow noopener noreferre...

When does a dog protect a tiger?

Just for the heck of it. Laughter lights and lightens.

0733e4fd-3b91-4eb6-a65a-2eacfeb31639

<a href="https://www.machinedesign.com/industrial-automation/spire-unhackable-power-grid-defense?NL=MACD-001&Issue=MACD-001_20190306_MACD-001_464&sfvc4enews=42&...

a56625c9-7b26-4838-a690-6650f5724ebd

Most things related to avionics are held as intellectual property.You may get some clues from studying some of these patents:<a href="https://scholar.google.co....

what makes a perfect team? Researchers were shocked by the results of a Google study 7years back

Put five, eight, 12 or more people together in a room, and it's a crapshoot as to how well they'll #-Link-Snipped-#. The...

How adding artificial intelligence to our midst could be much more disruptive?

Think of classic sci-fi depictions: C-3PO and R2-D2 working with the Rebel Alliance to thwart the Empire in Star Wars, say, or...

9dadc425-4e2a-4b51-973c-aa3d330aa4d7

Not many will see the downs. Authour Wayne Dyer says: "it is almost a universal law that a fall of some kind...

2f69050e-aa08-49bf-85ac-dea2fa7538a6

#-Link-Snipped-#

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This may help:#-Link-Snipped-#<a href="https://www.google.com/search?client=firefox-b-d&q=non+asphalt+ruuaral+roads" target="_blank" rel="nofollow noopener nore...

Stud Welding: The Basics and Benefits

Machine Design says: welding is a heating process that uses an electric arc to join two metal parts together. A common process,...

56e32f94-6a37-42a8-8624-aeac49ef893d

This one injects drugs into the intestine wall for immediate absorption. The needle dissolves off.

Google and Verily Roll Out Automated Eye Screenings in India

Medgadget says: Verily, the life sciences research arm of Alphabet, and Google, the original part of the now giant company, are launching...

A Pill, That’s a Device, That Delivers a Drug!

Rani Therapeutics just achieved one of its most significant milestones since it was spun out of InCube Lab in 2012. The San...

FDA Cautions Against the Off Label Use of Surgical Robotics for Cancers

Off-label use medical device use is a tricky subject and one that has been at the center of <a href="https://www.mddionline.com/congress-may-do-something-about...

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<a href="https://landportal.org/organization/malaysian-agricultural-research-and-development-institute" target="_blank" rel="nofollow noopener noreferrer">Malay...

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I forgot about the time delay bit.Soils have variable water diffusion rates. Sandy soils drain fast while clayey soil is slow to...

3a02c0dd-c867-4281-96b9-f8cdadb95ee8

#-Link-Snipped-# , we have to look at the dynamics of the process. Different plants have different root patterns. Not all need continuous...

(Crazy?) Engineered solution to reduce craziness?

A study into the treatment of Parkinsonâ&#128;&#153;s disease has achieved a degree of success thanks to an engineered solution that delivered a...

47039533-a072-4782-ac93-d25f709e94c1

In my opinion sun tracking or concentrating are contra indicated for the intended application. For one thing the cost goes up five...

c60f8959-1ab0-4c24-b732-0019a1f5f49b

#-Link-Snipped-#<a href="https://www.hindawi.com/journals/amse/2012/361857/" target="_blank" rel="nofollow noopener noreferrer">The Compressive Strength of High...

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#-Link-Snipped-##-Link-Snipped-#

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What kind of analysis are you considering?

d216811c-2fd6-43a8-b7f7-3d18540ccd1f

<a href="https://nptel.ac.in/courses/113107078/26" target="_blank" rel="nofollow noopener noreferrer">NPTEL IITm</a><a href="https://nptel.ac.in/courses/1121071...

be6c9b0b-f2c6-415c-a43b-67fd25166ff8

#-Link-Snipped-# you can consider Internet of Things for process control and Instrumentation.<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0,5&q=Io...

862baa05-46f5-4e9e-9eaf-0f25608cd00a

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=Extraction+of+petrochemicals+from+crude+oil&oq=Extraction+of+petrochemicals+from+crude+oi" ta...

195eeaa6-dcf2-4dda-a04c-aa56793f9704

Lennon is one of a kind. Lovely.In Mahabharata Krishna urges Arjuna to fight to right a wrong. I wasn’t so much talking...

Why is there so much strife in the world as a whole and right now in our corner?

Isnâ&#128;&#153;t a toddler laughing and chasing a butterfly the same happyA starving child crying for food deserves the same compassion irrespective of...

5df5948d-d878-450f-bced-86b5edb7cb95

Semi conductors have a crystal lattice structure that permits 'doping', which allows us to modify its behaviour.A conductor cannot be doped and...

Do You Love Your Engineering Job?

Design News says: We recently conducted a survey of Design News readers. We asked about salaries as well as job satisfaction. We...

How artificial intelligence is revolutionising medical diagnostics

Engineer (UK) says: Slowly but surely, artificial intelligence is infiltrating almost every aspect of our lives. It is already busy in the...

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What, if one may ask, is the question?

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Micro turbine engines for drones propulsion:#-Link-Snipped-#Want a Flying Drone? These Students 3D-Printed Their Own#-Link-Snipped-#

276ce9bb-e12b-4833-a1a7-c8aa8d16e521

?=(56+28+63)/7= 21

Can anyone who is not a CEan get such an idea?

If Triboelectrics could become a source of power for electronic devices would it be of interest?

Electropages says: Triboelectrics is the generation of electricity from friction and it could become a new power source for electronic devices. The...

b92a4dcf-8ac0-491f-809e-cb1fd3102cf6

#-Link-Snipped-# , I must qualify what I said about open curves. The statement is true for some (not all) open curves. I...

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#-Link-Snipped-#

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Why a closed curve? It will be true of open curves. In the very example shown any one of the three outside...

06bd2d97-dd13-44a4-bc26-981c200226c6

The chemical commonly called alum is potassium aluminium sulphate. It has been used in water purification since the time of Romans. It...

f628b86d-e05e-4354-aae2-baf1384d379b

#-Link-Snipped-# , you were right.  The tapping at the middle two resistors joining the middle of the two battery banks can...

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Adjectives are usually just padding.This is my favourite book since 1957 for good English:<a href="https://www.scribd.com/doc/217456602/Complete-Plain-Words-Sir...

88099af9-9116-4d77-8f9d-16afced65436

What has that to do with being 23? What interests you and what you have done till now should be the things...

45ec874e-dca3-42a3-935b-33d6d6a74563

Astrophysics (or any other branch of physics) is the whole life for one who takes to it. It is not an MBA...

009422a5-6688-47b7-bf75-4f141e75cf9a

#-Link-Snipped-#

8e910879-4ad4-4705-a913-8f86bd45bfda

How big is the area being irrigated? If large different parts may have different moisture content. The field can be divided into...

602b1f15-c76c-4c27-8ace-fccaef10bd04

True Advaits in real life.

0208c9c8-1047-4d25-a0d1-49415bfb0a1e

Did that. Did not work even with two LEDs in the sun and one in the dark. The LED in the dark...

d77fdd8e-a948-41b3-b289-9339185a0cb4

The experiment claiming the CD produces the voltage is fake. 1.37 V is just the voltage of the junction. That does not...

9e0fb380-178e-413c-8c22-dc9758a85141

I found an almost identical experiment on the net. Except that I used a red LED. Nothing new under the sun!#-Link-Snipped-#

f12c6411-f917-4138-9659-d9868111699a

The CD is irrelevant. It is just a support for the LEDs. If one sees carefully the resin body of the LED...

397acd2e-3813-4a8d-a5bf-fb89d29434b9

#-Link-Snipped-# , why did you choose to study civil engineering in the first place? Something in that field must have motivated you....

Want New ideas for your university project?

Texas Instruments offer help.<a href="https://university.ti.com/en/students/design-inspiration?HQS=corp-uni-null-seniorproject_spring19-exah-lp-ElectroPages-eu&...

160ac27d-f34f-407f-b577-498f0bb8d7fb

#-Link-Snipped-##-Link-Snipped-##-Link-Snipped-#

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#-Link-Snipped-# , how about a project on harvesting ambient wireless energy for powering micro power devices?#-Link-Snipped-#

57cecc69-c9cf-4890-a3a0-d4c640dd9043

#-Link-Snipped-# , how about a project on harvesting ambient wireless energy for powering micro power devices?#-Link-Snipped-#

192bdd1c-24e2-4d1b-80f2-da2c492b3e7b

Your city will certainly have French and Spanish embassies are institutions teaching these languages. They do give certificates. Likewise Autocad also sponsors....

955ffc0b-9dc1-4b32-96a5-1d35dc0d3429

Carpets are shock absorbers. As such it may not be a worthwhile idea to fit piezoelectric generators in one. All piezoelectric energy...

e0f01ff0-6d27-4c6e-82e1-95fd38ef6f7f

<a href="https://scholar.google.co.in/scholar?hl=en&as_sdt=0,5&q=openGL+computer+graphics" target="_blank" rel="nofollow noopener noreferrer">Google Scholar</a>

54e92191-d8bb-4834-b554-c776ec87dbe1

My apologies. There was an arithmetic error. That should be 220 ppm. 340 will give a hardness of 200 ppm when mixed...

83d54067-268c-4f85-b192-cb8fd89c185e

Can you use a screw press with a gap greater than the seed thickness?

a39c942d-ec1c-4f6e-8f7b-b59f1154ee94

Much simpler to mix at brewing time. Make 340 ppm CaCO3 water stock. Mix equal quantities of this with the 60 ppm...

d768c931-d0d4-4d18-ad02-9a3aea0928e6

Cooking in the context of food processing is really a chemical engineering activity.

cf6cac5a-1729-4648-a89f-35887dad0d02

#-Link-Snipped-# , we may have to breed them there. We also do not know how many generations it would take. The Chinese...

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Apparently people in the tropics can stand solar radiation better than those in the temperate or colder zones. They are naturally genetically...

Is this Another Biomedical Hurdle for Space Travel?

NASA has discovered that more than six monthsâ&#128;&#153; exposure to outer spaceâ&#128;&#148;either through living on the space station or travelling to other...

706c63f8-4efc-4597-85d8-215698229177

As of now hard wired. PCB will follow. Who knows if #-Link-Snipped-# has an ICE version up the sleeve?

41a86934-f188-487c-b69c-7a45184f653c

Did you say Boston Dynamics or Dynamite?I have always followed BD’s developments in Robotics and thrilled by  them.

0a8e03d8-422f-4475-89b0-2ee8dd4eba3b

The past is dead. Just bury it. Thoughts like 'It might have been...', 'If only I had...' are of no use. One...

97cbbf0b-c68d-484f-a877-5df2393fa8e9

Dump that thought about ruining your life.You have a BTech(EEE).  Assuming that you like EEE, just look around where you can start.Maybe...

10e647a0-e5b2-420c-a321-4fe8dd55ba6a

The problems are ethical as well as legal.From an ethical point, if a device is used for diagnosis and even intervention, it...

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There are many applicable international standards prescribed by agencies like US FDA, CE and such that describe what tests the device must...

1e5c0c69-fcf7-4eeb-bb5c-6fe629ca961e

We are all ears!

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Right on the nose, #-Link-Snipped-# .So does the guitar asking for more work as do my cameras languishing in the cupboard.

Should You Work Less and Spend More Time on Hobbies?

I am sure that many CEans will agree with this:As professionals around the world feel increasingly pressed for time, theyâ&#128;&#153;re giving up...

49a81454-8eb3-4ba3-b1cf-372c218e5912

#-Link-Snipped-# this may give some leads on the exit nozzle design:<a href="https://www.crazyengineers.com/threads/why-convergent-divergent-nozzle-has-higher-e...

1e97c5f1-5792-4f86-abf4-0d234b5f6d18

Maybe some of the publications here will be useful:<a href="https://scholar.google.co.in/scholar?start=10&q=forces+on+a+tricycle+&hl=en&as_sdt=0,5" target="_bla...

0dd5a68a-4328-4624-b2e5-8541a2d69c3c

#-Link-Snipped-#

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So that air for combustion to go in and also prevent flue gases coming into the boiler room.

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#-Link-Snipped-#

How to choose a spring: Basics?

Machine Design says: Spring are mechanical devices that store and apply kinetic energy. Theyâ&#128;&#153;ve been around a long time and continue to...

45970bd6-2328-4333-8ac3-efbe6f4781b7

Agricultural irrigation requires a high HP pump, which implies large solar PV panels. The smallest usable one may need 25 sq meter...

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It would. However, with less efficiency. The pressure developed inside would depend on the fuel, its burning rate, and the volume of...

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Peddling? Peddling refers to selling drugs or illegal or stolen goods.Or you want info on pedal operated washing machines? #-Link-Snipped-# posted a...

1e18e842-320a-4f99-b226-9bdedf5e23fa

#-Link-Snipped-#

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Maybe you can try making one from clay and bake it. Make a two cm cylinder block that fits the bottom of...

96390465-1db1-4fd6-af76-a789e4e3d59f

We used a much smaller diameter convergent divergent exit nozzle to develop thrust. The drawing shows a full open exit. It may...

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Way back in the 1950s we used to make firework rockets with charcoal powder and sodium nitrate. Later in the sixties I...

e16b6b1a-5514-4b72-bb81-325b12164b6f

Is this a solid fuel rocket? What is the material for the fuel container? What is the time of combustion? Is it...

02be9ce6-d437-4771-84ef-a208a42dbaa6

While kites for energy is a promising concept. it is a bit away from becoming a commercial proposition.  It cannot be...