Our most recent answers:

November 17, 2009

equivalence principle

November 17, 2009

Tunneling and pair creation

November 17, 2009

Water on a magnesium fire? Bad advice

November 17, 2009

Why reverse bias a photo diode?

November 16, 2009

rotating vane radiometer

November 13, 2009

light and meaning

November 12, 2009

Electrical and heat conductivity

November 12, 2009

ideal incompressible fluids

November 12, 2009

more ice data

November 12, 2009

hope for the future

November 11, 2009

Why is the universe expanding faster?

November 11, 2009

Magnetic test for gold?

November 11, 2009

Why paper in the bolt electromagnet?

November 11, 2009

Why does a cyclist bend inward when moving in a circular path?

November 10, 2009

What is meant by the term impact parameter?

November 10, 2009

Do aliens really exist?

November 9, 2009

stirred salt water and ice

November 9, 2009

thoughts on education

November 9, 2009

speed of light in a bend

November 9, 2009

soap at surfaces

November 5, 2009

more data

November 4, 2009

why quantum?

November 4, 2009

red shift analysis

November 4, 2009

heat and melting

November 4, 2009

salty gelatin

November 4, 2009

comment on bouncing balls

November 4, 2009

non-question

November 4, 2009

philosophy of teaching

November 4, 2009

cloud chamber trails

November 4, 2009

atom models again

November 4, 2009

Iraqi supercooled water

November 4, 2009

supercooled soda

November 3, 2009

medical lithium

November 3, 2009

Power, current, and voltage

October 31, 2009

Planck energy

October 24, 2009

Did we land on the Moon? Scientific evidence?

October 21, 2009

interference and conservation

October 21, 2009

atomic teaching

October 21, 2009

zero-point energy

October 21, 2009

what is the formula for friction?

October 21, 2009

What does 800 mAh mean?

October 21, 2009

light and

October 20, 2009

More on liquid nitrogen

October 20, 2009

Photons have zero rest mass

October 19, 2009

falling through earth

October 18, 2009

Thick wire versus thin wire?

October 17, 2009

What happens when you touch nitrogen?

October 17, 2009

Unstable particles

October 17, 2009

Carbon dating questions

October 16, 2009

light in universe