Like HowStuffWorks on Facebook!

Science | Innovation | Science Questions

Science questions are a fun and interesting way to learn about planet Earth, organisms and the universe. In this section you'll find an incredible collection of science questions covering a wide variety of topics.

Featured
World's Greatest Scientists

For centuries, scientists have shined a light into some very dark and very interesting corners of the universe. Get to know some of the greatest inquiring minds that history has to offer.


What if someone shot a gun on an airplane?

 What if someone shot a gun on an airplane?

Shooting a gun on a plane wouldn't cause much damage if the bullet hit the plane's skin. Find out what would happen if you shot a gun on a plane. See more »

How Quantum Suicide Works

 How Quantum Suicide Works

Quantum suicide is a form of thought experiment that is related to the field of quantum physics. Learn about the concepts behind the quantum suicide theory. See more »

Do backscatter X-ray systems pose a risk to frequent fliers?

 Do backscatter X-ray systems pose a risk to frequent fliers?

The backscatter X-ray system that can see through clothes has begun its test run at the international airport in Phoenix. But privacy is only one concern facing its implementation. See more »

Aren't there machines that can detect liquid explosives?

 Aren't there machines that can detect liquid explosives?

Passengers on U.S. aircraft can now carry on as many 3-ounce containers of liquids as they can squeeze into a quart-size plastic bag. Isn't there a better way to safeguard against liquid explosives? See more »

What if I shot my TV?

 What if I shot my TV?

You know that bumper sticker that says "Shoot your TV"? Click here to find out what would happen if you actually tried it (it's best to let us do the dirty work). See more »

How does a ball point pen work?

 How does a ball point pen work?

How does a ball point pen work? See more »

Could I power my computer or my TV with a bicycle generator?

 Could I power my computer or my TV with a bicycle generator?

How to power a TV with a bicycle is explained in this article. Find out if you can power a TV with a bicycle. See more »

 How does chlorine work to clean swimming pools?

How does chlorine work to clean swimming pools? See more »

 What does the filter on a cigarette do?

I have been smoking for 50 years and have always wondered why cigarettes have filter tips. I can remember when none of the cigarettes on the market had filters, and now nearly all of them do. Does the filter do anything? See more »

My glasses have an anti-reflective coating. How does that work?

 My glasses have an anti-reflective coating. How does that work?

My glasses have an anti-reflective coating. How does that work? See more »