R Clark from Prince George asks

Can any force be enacted upon a perpendicular slice of air molecules to attenuate the propagation...

darren liew from Singapore asks

How many times a year can you see the eclipse of the moon???

Susana from Germany asks

I would like to know why Russian rocket engines use 4 nozzles and American ones just one. What...

Richard L. Gibbens from Colorado asks

My question concerns the latest news about the Cosmological Constant. Has it now been established...

M Anderson asks

If you could dig a hole from one side of the earth to the other passing though the core, what would...

Ed from Kyiv asks

Against the black plastic on my TV, dust looks white; when I wipe it off with a white tissue, dust...

Muhammad Zaid Khan from Karachi asks

How can the mass of earth be calculated and what are Newton's rings?

Darren Gough from Vancouver, BC asks

Have you ever hit the top of a glass juice bottle with your fist. It makes a very loud cracking...

Gord Vance from Ottawa asks

Could Uranium 238 be used in conjunction with photovoltaic cells in order to create a viable power...

Travis Cheeseman from Bloomington, IND. asks

Ok, this is my project: I have put roughly two cups of rice in a sock and threw it in the microwave...

joe from Barrie asks

Who was the first to split the atom and what year?

bruce marshall from Davie asks

In energy transformations, even on the subatomic level, is some energy always lost as thermal...

Jordan Green from Toronto asks

Today a girl in my class asked the question "Can you save yourself from an elevator falling 10...

Apurba Kanjilal from India asks

How are sparks generated from flint, quartz, and metals? What burns during a spark? How do the...

Lu Chen asks

Where could I find some interesting facts and pictures on Christa McAuliffe?

Vijay from Hyderabad, India asks

As an undergraduate computer engineering student, how can I best prepare myself for a career in...

Elizabeth from Oshawa asks

How was life created and why did we start living on earth, or why was it the "chosen" place? i...

Donald W. Owens asks

Can you explain the formula for computing the hydrogen burning lifetime of a star with 15 solar...

Erin Price asks

How can I demonstrate the relationship between magnetism and organisms?

Joey Bergen asks

Do permanent magnets lose their strength when they are dropped and if so, why? I took two magnets...

Devin Steele from Pooler asks

This is an archery question. Does an arrow fly faster in the hot or cold? or... Does the hot or...

James Horwood from Vancouver asks

How can I determine the size and configuration of magnets required to hold together two 500gm...

Steve Clarke from Essex, England asks

What will happen when individual IC (integrated circuit) components reach the size of atoms and...

Kushagra Bhargava from Jaipur asks

Sir please tell me how the lghtwaves gets their momentum or how they come into motion?

Linda Horsman from Gibsons, BC asks

What is the cause of static electricity? Also, I'm doing research for a book and I wanted to know...

Willi Luke asks

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

Leo Molenaar asks

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

Jackie B. from Wisconsin asks

Which metal conducts heat the fastest?

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. ...

Anonymous asks

How can I create a real light saber? It does not have to be completely like the ones in the movie...

Tsiadimos Nick from Athens, Greece asks

I know that superconducting wires present their zero-resistance properties at low temperature...

Eddie from Toronto asks

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

KENNETH HICKFORD from LONDON ENGLAND asks

(1) What quantities of the earths atmosphere are lost to outer space over a given time? (2) how...

Gordon from Oakville, Ontario asks

I was studying for a science exam and stumbled across a chapter that covered energy. The chapter...

Karan Rustagi from Ontario asks

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

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...

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...

Chris Chase from Harrisburg asks

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

steve abel from Seattle, WA, USA asks

Can you explain the meaning of the phrase: " has cleared the neighbourhood around its orbit.” I...

Marty Ellis from Pittsburgh asks

Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...