Engineering

Marcos Chimenti From Rio de Janeiro, asks,

Does air act as an insulator against lightning on flying airplanes? I know the aluminum case is highly conductive and works as a Faraday cage (though...


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Engineering

Shauna From the Internet, asks,

How long can a vehicle typically run without oil or antifreeze before the engine...


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Engineering

Alex Smith From Owen Sound, asks,

How can I make a simple...


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Engineering

Tony Young From Santiago, Dominican Republic, asks,

I have a problem with moisture in my apartment. I live in a Caribbean country and am not able to find a reasonably-priced dehumidifier. Is there any...


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Engineering

Azadeh From Tehran, asks,

If we heat a square metal page with a circle hole in the center of it, what will happen to both the square and the hole size after...


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Engineering

Andrew Hope From Gloucester, asks,

My son, James, and I cannot agree about the recoil of a gun. I believe that if a gun is fixed in a vice the bullet will go further than if it is...


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Engineering

Don Auld From Vancouver, asks,

In the CANDU nuclear reactor, what initiates the fission process? I understand that the U235 in the fuel will undergo fission if it absorbs a slow...


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Engineering

Phil From Ottawa, asks,

Are there some materials that shrink faster that other materials in cold? If yes, which...


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Engineering

D. Tolenaar asks,

How does air conditioning...


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Engineering

Linda O\'Neill From Dartmouth, asks,

How can you define the pressure of 5 g. on a person? This would be done with the fingers. I am trying to figure out how to equate 5 g into pressure...


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Engineering

Ken From Vancouver, asks,

If one could increase the flow of air into a jet engine,would this increase the efficiency of the engine? Are all jet engines affected in the same...


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Engineering

Mike Starry From Fresno, CA, asks,

How and when will hydrogen fuel cells be used to provide electricity for my home? What would it take to make it happen? Is the biggest challenge for...


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Engineering

Sue Smith From Salem, Oregon, USA, asks,

I am wondering about the difference between wood bats and aluminum alloy bats; I need a simple way of describing the micro-structure of the electrons...


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Engineering

DeeCee From Indianapolis, asks,

How does vacuum insulation work and can an R Value be assigned to it? Does the depth of the vacuum change the R Value? Does the cross sectional...


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Engineering

mark irvine From sacramento, asks,

If you have a square 1 pound block with a front flat surface strike a ball, would it be the same as if you had the same weight block, but cut out in...


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Engineering

Yogesh Patil asks,

Can you provide a detailed structure and working of the magnetron tube used in microwave ovens? ...


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Engineering

Brandten B Miller From the Internet, asks,

How does the shape of the fuselage affect the glide distance of an aircraft? What is the best aerodynamic design for a...


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Engineering

Joaquin Cornejo From Los Angeles, asks,

Why do dry cell batteries (rechargeable) need to be fully drained before they can be...


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Engineering

Jordan Duncan From Prince George, BC Canada, asks,

I need to know what happens to wood (softwoods, hardwoods and kiln dried woods) when they are submerged in water for a long time. Are they preserved...


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Engineering

Yamna From Dubai, United Arab Emirates, asks,

1.) Do the intesity of the sun's rays increase the current in a solar cell? 2.) Does increased current affect the amount of electric power produced...


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Engineering

Guy From Vancouver, asks,

Why did Canada pull out of the ITER fusion project, and what, if any, research is Canada contributing to the ITER...


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Engineering

Jayde From Surrey, asks,

What is the field of cryogenics? What kind of occupation is available in...


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Engineering

Rod From canterbury, asks,

Is there any magnetic shielding material which is not itself attracted by a...


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Engineering

David Howard From UK, asks,

Can you tell me whether it would be possible to launch a spacecraft into orbit using a giant catapult? I can see no reason why not. Obviously any...


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Engineering

Aliahs Ahmadzai From Maple Ridge, BC, asks,

When you get a lighter and get a piece of metal and you turn on the lighter and put it over the metal why does it change a different...


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Engineering

Furqan From Lahore, asks,

Do bends in a wire affect its electrical resistance...


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Engineering

Vanessa From Calgary, asks,

What is the history of solar ponds and what trends are expected for solar ponds in the...


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Engineering

Morten Aasbak From Bergen, Norway, asks,

I came across a "water powered clock", and it can supposedly generate power from water alone. My question is simply: How? Here is a reference to this...


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Engineering

Fester From Tacoma, asks,

I'm doing a science project and my topic is about the speed of sound. I was wondering if you might have a formula for speed of sound? ...


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Engineering

RR From Toronto, asks,

How do electric kettles...


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Engineering

Daniel Wong From Singapore, asks,

How do miners mine for...


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Engineering

Jonathan From Brooklyn, asks,

I want to convert a conventional gas engine to run on hydrogen gas. How would I go about...


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Engineering

Paul Hosking From Brisbane, Australia, asks,

We are having a debate at work that we hope you can settle. The father of one of my workmates has put 18 inch wheels on his car, moving up from 16...


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Engineering

Matt From Mississauga, asks,

I have been reading and learned that electrons flow from negative to positive in the external circuit. Why then do we ground the negative terminal...


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Engineering

Roman Tanisis From Coquitlam, BC, asks,

Hi was always wondering if it is ok to use a higher voltage power supply for a lower voltage device. For example if you have a 5V device can you use...


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Engineering

Robert Steinhaus From Castro Valley, asks,

Can a fast breeder reactor like the famous Candu series of Canadian designed fast reactors be modified such that the waste ultimately produced by...


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Engineering

Ali From Pakistan, asks,

In microwave transmission sometimes we use power in positive e.g +13db and sometimes in negative like -13 db. What is the difference? How can we...


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Engineering

Ethan Heil From Salem, VA, asks,

I was reading about the tensile strength of certain fabrics, and was wondering what kind of instrument one would use to find the tensile strength of...


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Engineering

dave hack From brisbane, asks,

Nitrous oxide when used in motorsport is often classed as "forced induction" although is it really forced induction? Does the pressure...


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Engineering

Steve T From glade valley, asks,

If only one terminal of a battery is grounded to a pipe in the earth, regardless of which one terminal is grounded, will that battery drain or lose...


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Engineering

Jeff From Calgary, asks,

I'm having a debate with a friend about the supposed benefits of filling your tires with Nitrogen gas. The major claim seems to be that N2 is less...


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Engineering

Justin H From Vancouver, asks,

If fresh water is pressurized to 1 MPa or greater, frozen solid at this pressure, then completely thawed, will it remain pressurized? [Editors...


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Engineering

Eman From Edmonton, asks,

Is there any `accessible` natural or man made material that contracts when electricity is...


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Engineering

Gerry Nazareno From Philippines, asks,

Who is the scientist to be attributed for equation or formula used in calculating engine exhaust back pressure? The formula for Exhaust Pressure...


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Engineering

James From Victoria, asks,

I've watched a few videos about sound frequencies altering the geometric pattern of molecules. Some interesting work has been done on the effects...


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Engineering

Jason Liu From Fremont, asks,

I am a high school student and I have a question regarding piezoelectricity. I would like to know if a device like this is feasible: could you...


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Engineering

Ryan From Qualicum Beach, asks,

Why don't some countries like Canada reprocess spent uranium into...


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Engineering

megan-india From pembroke dock, asks,

Does the area of a solar cell affect the voltage...


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Engineering

Angel From Toronto, asks,

Why are biofuels becoming so big all over the world? And how would you explain to someone what biofuels are if they don't...


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Engineering

Brent Secondiak From Medicine Hat, asks,

I am attempting to determine if the spark given off from a TASER, would be enough to light a candle with prolonged exposure. And why or why not...


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