Most popular

Gary Kolling asks

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

Atalinder S. Bindra asks

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

Nick Reed from Cherry Hill asks

I have a question regarding starfish, or seastars, whichever you would like. Is there a species of...

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...

S.Leeberman asks

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

Dave from Sutton asks

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

Furqan from Lahore asks

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

vanessa demelo from paris asks

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

Reggie Lykins from Cincinnati asks

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

TJ from Thunder Bay asks

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

Tara from the Internet asks

Is it better to keep planaria in pond water or tap water if my experiment deals with feeding them...

Luke asks

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

Sara asks

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

hart from the Internet asks

I understand that alkenes are more reactive than alkanes. I recently read however, in a new high...

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?

Thomas from Middlesbrough, Australia asks

How many times can you split up an atom?

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...

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...

Michelle from San Jose asks

What are vinyl erasers made of?

David Howard from UK asks

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

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...

Val Mullen asks

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

Alvina Chung from Sydney asks

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

Charles Tramble asks

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

Cory from Victoria, Texas asks

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

Gina from Boston, Massachusetts asks

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

James from Montreal asks

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

KIm from Waldorf asks

What furnishs H30+ in water solution?

Edward Lotus from Mississauga, Ontario. asks

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

Terry Hare from Oshawa asks

Why are most scallops white and some are yellowish brown to almost an orange color?

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,...

Jonathan Weiler asks

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

Peter Griffin from Beaufort, SC asks

Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way...

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...

RR from Toronto asks

How do electric kettles work?

Marke Jones from Aurora, Ontario asks

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

Kelvin from Markham asks

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

Daniel Eyre asks

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