Eric Cashmore asks

What is the name of the most recent planet discovered, and where is it?

Serge Bellemare from Boston, MA, U.S.A. asks

Where in the universe are we? We seem to know the dimensions of the Universe; so does it have the...

Jessica Reynolds asks

Since there are no molecules within the vacuum of space to allow heat transfer, how can the air...

Gillian from Haliburton asks

I'd like to know what happens to radio waves once they have been emitted. Do they live forever?...

Jen Collard from Brockville asks

Light cannot escape from a black hole, because of the black hole's mass. If this is true, then...

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...

Roman asks

How do scientists detect nutrinos when they have no mass and no charge?

Duane from the Internet asks

If two magnets are in contact with each other or close proximity to each other either repulsing or...

Andy (Dionne) Setlow from Madison, Alabama, USA asks

I have long struggled to understand why the temperature of various wavelengths track so closely...

Chris from J-town asks

A friend at a party showed me that you can take a glass bottle, fill it with water, but not all the...

Steven Hoaglund asks

Galileo said, "in a vacuum, all objects fall at the same speed." Well, I have an idea that might...

Gary Kolling asks

What Satellite Galaxy is moving fastest toward the Galactic center? What Satellite Galaxy is moving...

Jayde from Surrey asks

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

Robert Cunningham from Dallas, Texas asks

If you shine a light through a glass of water, the light slows down. What makes it speed up again...

Ed Kasica from Oldsmar, florida asks

Why does a magnetic field in the form of a bar magnet effect the movement of a planaria? Does it...

Fester from Tacoma asks

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

E.H. from AOL asks

I understand about the Curie tempurature but I am wondering if an electromagnet has a Curie...

Furqan from Lahore asks

Why don't ordinary Silicon diodes emit light like LED's?

Pat asks

If the earth stopped revolving would humans weigh less or more? Would there still be gravity on...

Atalinder S. Bindra asks

Is it possible to reach a black hole? What is the distance of the nearest black hole from earth? Is...

Marin from Split, Croatia asks

What happens when electrons pass through a magnetic field at a velocity near lightspeed?

dina from Cairo, Egypt asks

I'm interested about light. I have two questions: What is the difference between scattering and...

S.Leeberman asks

How do I estimate the mass of an object when I know its volume and nothing more? For example, how...

Luke asks

A question about tri-coil atomic fusion/fision... If one used positive and negative ionized plasma,...

Thomas from Middlesbrough, Australia asks

How many times can you split up an atom?

David Howard from UK asks

Can you tell me whether it would be possible to launch a spacecraft into orbit using a giant...

Sara asks

What happens to a compass when it is held exactly on magnetic north? Does it just spin?

Russell Westhaver from Vancouver asks

I've got a question about light. As I understand it, light is a particular form of energy--in order...

Dan Hurtado from Tallahassee asks

Can you explain the process by which hot materials emit light? Particularly, why is infrared light...

James from Montreal asks

What is a wormhole? How does it work? How is a wormhole created? Is it possible to survive going...

Cory from Victoria, Texas asks

Why are rail road pieces magnetized? Me and my friend noticed particles of steel and iron forming...

Charles Tramble asks

What can I use to block magnetic lines of force? I have been working on an rf transmitter project...

Edward Lotus from Mississauga, Ontario. asks

Why is it that we always can draw nice electric field lines and magnetic field lines relative to...

Jonathan Weiler asks

If atoms are so small, how can we split them?

Pablo Ros asks

I have been charging a leyden jar with an electrophorous (pieplate and cup) and was wondering how...

Daniel Eyre asks

How far is Pluto from the sun, and will we ever be able to travel to other planets, besides the...

Ruben from Miami asks

I would like to know if there is any way to magnetize a 6x4x1/2 inch ceramic 8 non magnetized...

John D. Miller from Belmont, NH asks

I read that one can get a wider range of colors or shades if one uses the secondary colors:...

Liz Morice asks

What makes the aluminum powder in an Etch-A-Sketch stick to the glass to make an image?

Ben from the Internet asks

What exactly are Proton Spin Numbers, and how can you have a non-integer proton spin number?