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dina from Cairo, Egypt asks

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

D Selman asks

Why do I see green and orange lines in a sodium ion when my flame is the color of yellow?

Phil asks

What are the chemical properties of phosphorus?

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?

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...

James from Montreal asks

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

Ashley from Langenburg, Saskatchewan asks

Does population density affect fish growth rates? I'm trying to determine if population density...

E.H. from AOL asks

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

Val Mullen asks

Is there really a tree in Tasmania called the Huon Pine that is 20,000 years old?

Marin from Split, Croatia asks

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

David Howard from UK asks

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

Dave from Sutton asks

Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by...

Charles Tramble asks

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

Luke asks

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

Harish from Scarborough, Ontario asks

I want to know if we inject cobra's venom into a rattlesnake and rattlesnake venom...

Dan Hurtado from Tallahassee asks

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

Thomas from Middlesbrough, Australia asks

How many times can you split up an atom?

Furqan from Lahore asks

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

Adam Bruneau from Atlanta, GA asks

I want to make sculptures out of old vinyl records by melting them down and pouring them into a...

Reggie Lykins from Cincinnati asks

I have two questions. 1. Do jellyfish have ears and if so can they hear well? 2. How many...

Sara asks

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

Ian Gordon from Exeter, Devon, UK asks

Since puberty I have always been tall and thin with very long legs. I was a fair player of rugby...

Gina from Boston, Massachusetts asks

I am allergic to nickel and cobalt. (thanks to patch testing). I think it was provoked by taking...

Anonymous from Queens, NY asks

I would like to know why the bananas has that semi circular shape. I wonder if it is because the...

TJ from Thunder Bay asks

Last spring and summer there were millions of army worms creeping all over everything. Maybe worse...

Sarah Spratt asks

What is the most critical environmental problem in Canada today?

Kelvin from Markham asks

Why does the Original Coke sink into the water, when Diet Coke floats in the water?

Edward Lotus from Mississauga, Ontario. asks

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

vanessa demelo from paris asks

Why does insulin resistance induce weight gain? I don't understand because insulin is suposed to...

Ruben from Miami asks

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

Alvina Chung from Sydney asks

The first four facts below suggest that the earth should be getting heavier and heavier - but it...

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...

Julie from London asks

Can you give me some information on the reaction of ascorbic acid and N-Bromosuccinimide? How do...

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:...

Michelle from San Jose asks

What are vinyl erasers made of?

Cory from Victoria, Texas asks

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

Marke Jones from Aurora, Ontario asks

Why do many pharmaceutical drugs have HCl (hydrochloride) associated with them? Is this a...

Clare Reading from Mesa asks

What is the pH of Diet Pepsi? (or cola,generally) and... Does smoking affect the body's pH? If so,...

Teresa Golebiewski asks

Why doesn't oil freeze? Would it freeze at -270 degrees?