James from Montreal asks

There has been much mention of antimatter, such as antineutrinos. I was wondering what exactly...

Francis from Ottawa, Ontario asks

I have been teaching high school science for 16 years and I am interested in knowing what you feel...

C. Erik Grisham from Washington asks

Is there an exact relationship between Gravitational forces and Centrifugal forces? If so, is...

A. S. Kaire from Quezon asks

If the earth were suddenly stopped in its orbit, how long would it take for it to fall into the sun?

M Anderson asks

If you could dig a hole from one side of the earth to the other passing though the core, what would...

Karl-Alexander Berg Brisebois from Dunham asks

Conservation of momentum can explain the exchange of a virtual photon between two electrons and the...

Lee Ming Fei asks

Why does chalk, a cylinder, always break into three pieces when it falls, and not into two or four...

Stephen Ross from Hong Kong asks

1) Which of the following two options is more widely accepted by the scientific community? a)...

Sahm Atman from Berkeley asks

Supposedly in classical electromagnetism an accelerating charge radiates. If so, why? If so, then...

Chris asks

Can absolute zero (0 degrees Kelvin or -273.16 degrees Celsius) be registered on a thermometer,...

Stanley Jeffs from Cortona asks

I have been reading Feynman and what he says seems to make sense to me, in particular:photons are...

Fred Bucheit asks

How does mass shifting affect Earth's rotation? Could melting of polar icecaps cause a change in...

Anonymous from Ajax, Ontario asks

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

James Hope from Gloucester asks

I recently read a book on the big bang, and it said that protons and neutrons are made up of 3...

Steven Hoaglund asks

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

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...

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...

David Keirsey asks

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

Ben from the Internet asks

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

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...

Shayne Paterson from Lincolnshire, UK asks

I am currently researching EMP for a essay at my college. My essay is looking at possible...

Francis from Ottawa asks

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

Edward from Mississauga, ON asks

I have a wierd thinking question regarding electricity. When we have a positive charge or a...

Kay asks

How can a star become small and dense enough to become a black hole? My understanding is that a...

Mauro Mavrinac from Ottawa asks

Given: a horizontal rigid tube with one end on an axis at a constant rotation. Insert a solid ball...

Saurabh from New Delhi asks

Gravity can produce motion in a body. Thus, it does work. But, for doing work, energy is needed....

Dean Burlock from Melbourne, Australia asks

Do you think scientists will ever create a wormhole? And if they are able to create a wormhole how...

kyler from the Internet asks

If I were to tie a rope or something like that to the moon and have it dangle far enough toward...

Andre Depre from Tienen, Belgium asks

Can centrifugal force be used to create an inertia drive by tightening/pulling the orbiting...