Atalinder S. Bindra asks

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

Yevgeniy Perev from Staten Island asks

When our galaxy will absorb the 2 Magellanic Clouds, that will produce a starburst. For how long...

David Keirsey asks

What are the quantum numbers that are involved in the distinction between matter and antimatter? I...

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

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

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...

Dane Haas from Flesherton asks

What are the most recent solar storms and will they effect the Earth's atmosphere?

James from Montreal asks

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

David Howard from UK asks

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

Kiran Gupta from Singapore asks

Why does a rare earth magnet fall slowly in an aluminium tube but it falls really fast when I toss...

Arnaud Bigeu asks

How does the static universe theory (Gamow, Hoyle...) explain the 3K cosmic background radiation....

Fester from Tacoma asks

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

Duane from the Internet asks

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

Gary Kolling asks

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

Anonymous from Ajax, Ontario asks

If mass can be converted to energy by using E=mc2, how can energy be converted to mass?

Dan Hurtado from Tallahassee asks

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

dina from Cairo, Egypt asks

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

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...

A F Jenks from Nelson, NZ asks

When a laser is bounced off the reflector Apollo crew placed on the moon, or any light is reflected...

Sara asks

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

Edward Lotus from Mississauga, Ontario. asks

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

Gillian from Haliburton asks

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

nijin k from Khd asks

What is the heat wanted to melt the hardest substance in the world?

Marin from Split, Croatia asks

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

Ruben from Miami asks

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

Thomas from Middlesbrough, Australia asks

How many times can you split up an atom?

S.Leeberman asks

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

Francis from Ottawa asks

When a ball is rotated at the end of a string in a horizontal circle (parallel to the ground) what...

E.H. from AOL asks

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

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...

Luke asks

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

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...

Jessica Muller from Hamilton, Canada asks

I have heard that some one discovered that the atom is actually made up of sound waves. Is there...

Charles Tramble asks

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

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...

Cory from Victoria, Texas asks

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

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:...

Dallin Shaner from the Internet asks

What is the scientific explanation of why a magnet's magnetism would decrease or increase when its...

Jonathan Weiler asks

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

Jayde from Surrey asks

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

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...