Angelo from Mississauga asks

Why is styrofoam a good insulator?

Stuart Wills from Brisbane asks

I am curious as to how much electricity over given periods of time (instantly to say a 10 seconds)...

Talha asks

What is electrical engineering? What is the difference between electrical engineering and...

Anonymous from the Internet asks

Do all pencil lead erase the same? Why or why not? Which pencil lead erases the best?

JWMS Science Class from Winchester asks

We are studying the electromagnetic spectrum. We have a question. Can you speed up radio waves? If...

Lindsay from New York City asks

What is the chemical make-up of film? I am searching for a detailed make-up of either 35mm film for...

Richard Hart from Victoria, BC, Canada asks

I am interested in metal fatigue in bicycle frames. Does the steel or aluminum in a bike frame get...

Mark Bodnar from Abilene, Texas, U.S.A. asks

Can you help me find a simple definition of "inertial coupling" (if there is a simple definition)....

Leo Molenaar asks

Is the up and down movement of a piston in a combustion engine a waste of impulse energy? The...

Gareth Cook asks

How do "security tags" in shops work? I'm referring to the white plastic, bar-coded tags containing...

Robert asks

What is more efficient: to push or pull a car (front wheel vs. rear wheel drive)?

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...

Willi Luke asks

I am currently doing research on the e-bow, a guitar effect that calls upon an infinite feedback...

Adam Moore from Denver, Colorado asks

I am in the 6th grade in Denver, Colorado. I made a machine out of 2 by 4s that will kick a ball. ...

James Hope from Gloucester asks

Last year in school we learned about nuclear decay, and how some atoms decay by releasing gamma...

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...

Jenn from Torrance asks

What is the composition of an American nickel? Also, do you think that a nickel has a higher...

Richard from Halifax, N.S. asks

How do you calculate water flow rate (volume/sec) based on water pressure and hole or pipe size?...

Beth Conrad from Hong Kong asks

How can I build a water purifier?

Jackie B. from Wisconsin asks

Which metal conducts heat the fastest?

Eddie from Toronto asks

I know the basic details of how an ionization smoke detector works, where particles enter the...

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...

Emma from the Internet asks

Why has Aluminium only recently been extracted from its ore?

Donald Plourde from East Mapleton asks

If I have two 6 volt lead acid Batteries with a 400 ampere hour charge in each one. And I wire the...

Karan Rustagi from Ontario asks

I heard that electricity can be transmitted in other forms than electron flow; like electromagnetic...

Stef asks

How are minerals used in the production of Canadian coins?

Don Auld from Vancouver asks

In the CANDU nuclear reactor, what initiates the fission process? I understand that the U235 in the...

Gerald Taylor from El Dorado, Arkansas asks

I was wanting to make my own acid stain for concrete. I have muriatic acid and heavy metals...

kirst from the Internet asks

What everyday appliance uses electrostatics?

Chris Chase from Harrisburg asks

Has anyone ever weighed nuclear reactions in reactors to see if the reactor weighs more while...

Jennifer Easterly from Sydney asks

Does the diameter of a tree have anything to do with the percentage of lichen coverage on the tree?

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

Tony from Melbourne asks

In my recent science project, I tried discharging batterys in the freezer, fridge and room. The...

Rena from Thornhill asks

For school I need to know about natural convection and forced convection. I need to know the...

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...

Ken from Vancouver asks

If one could increase the flow of air into a jet engine,would this increase the efficiency of the...

Mark Brooks from London asks

Why do ice cubes melt quicker on stainless steel than a china plate and fire clay?

Brian from Avon Lake asks

I am doing a report on aluminum and the impact it has on our environment for a science class. Do...

Ian Burke asks

What do you think of a Gas/Electric hybrid car? I made a power generation device made up of 8 a.c....

Guy from Vancouver asks

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