Jess Brewer

Physics

James From Montreal, asks,

There has been much mention of antimatter, such as antineutrinos. I was wondering what exactly antimatter consisted of. How is it created, what is it...


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Physics

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...


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Other

Francis From Ottawa, Ontario, asks,

I have been teaching high school science for 16 years and I am interested in knowing what you feel are currently the essential skills, knowledge and...


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Physics

C. Erik Grisham From Washington, asks,

Is there an exact relationship between Gravitational forces and Centrifugal forces? If so, is Centrifugal force basically the same as Gravitational...


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Physics

M Anderson asks,

If you could dig a hole from one side of the earth to the other passing though the core, what would happen to a ball dropped in at one of the ends...


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Physics

Karl-Alexander Berg Brisebois From Dunham, asks,

Conservation of momentum can explain the exchange of a virtual photon between two electrons and the repulsive force that results. But it cannot...


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Physics

Sahm Atman From Berkeley, asks,

Supposedly in classical electromagnetism an accelerating charge radiates. If so, why? If so, then does an observer in the accelerating frame "see"...


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Physics

Stephen Ross From Hong Kong, asks,

1) Which of the following two options is more widely accepted by the scientific community? a) Elementary particles actually exist in quantum states...


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Physics

Lee Ming Fei asks,

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


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Physics

Chris asks,

Can absolute zero (0 degrees Kelvin or -273.16 degrees Celsius) be registered on a thermometer, since there is no heat or movement of atoms? If no...


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Physics

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 for something to produce light, energy of some...


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Physics

Fred Bucheit asks,

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


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Physics

Anonymous From Ajax, Ontario, asks,

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


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Physics

Stanley Jeffs From Cortona, asks,

I have been reading Feynman and what he says seems to make sense to me, in particular:
photons are particles
photons do not travel in...


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Physics

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 after it leaves the glass of...


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Physics

Steven Hoaglund asks,

Galileo said, "in a vacuum, all objects fall at the same speed." Well, I have an idea that might prove him wrong. My idea goes as follows: Take a...


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Physics

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 quarks. It also said that up quarks have a + charge...


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Physics

Francis From Ottawa, asks,

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


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Physics

Kay asks,

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


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Physics

David Keirsey asks,

What are the quantum numbers that are involved in the distinction between matter and antimatter? I know that a particle and anti-particle must have...


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Physics

Mauro Mavrinac From Ottawa, asks,

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


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Physics

Ben From the Internet, asks,

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


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Physics

Shayne Paterson From Lincolnshire, UK, asks,

I am currently researching EMP for a essay at my college. My essay is looking at possible non-lethal techniques in order to stop suicide bombers. The...


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Physics

Saurabh From New Delhi, asks,

Gravity can produce motion in a body. Thus, it does work. But, for doing work, energy is needed. Does that mean every mass has energy? If not, which...


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Physics

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 back off a mirror 180 degrees, are they (a) the...


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Physics

Edward From Mississauga, ON, asks,

I have a wierd thinking question regarding electricity. When we have a positive charge or a negative charge, we can draw the electric field lines, or...


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Physics

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 will they control it so as to take us places...


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Physics

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 the earth so I can reach it on the ground,...


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