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Our most recent answers:

May 11, 2008

Light is not dark matter

May 11, 2008

Bouncing balls

May 10, 2008

stars and planets

May 6, 2008

bouncing

May 6, 2008

ZPG?

May 3, 2008

oil and ice

May 3, 2008

magnet in water

May 3, 2008

Laser induced dots?

April 29, 2008

Hot liquid containers

April 29, 2008

Constituents of air

April 29, 2008

wind powered battery

April 29, 2008

prisms and colors

April 29, 2008

More on melting marbles

April 28, 2008

Is concrete a good conductor of heat?

April 28, 2008

Frequency of magnetic fields?

April 28, 2008

Fun with rearview mirrors

April 28, 2008

Regrigerators get hot making ice

April 28, 2008

AC to DC and appliance current drain

April 28, 2008

Grandma's microwave oven

April 28, 2008

Magnets do not bend light, however...

April 28, 2008

Seeing photons?

April 28, 2008

Electrons and anode current

April 28, 2008

Light speed vs. wavelength

April 28, 2008

Momentum of photons

April 28, 2008

More on the speed of light

April 28, 2008

Class 1 pulley

April 19, 2008

diamagnetism

April 16, 2008

Eggs: Hard-Boiled or Raw?

April 14, 2008

a model?

April 12, 2008

Electrons and electron-Volts.

April 12, 2008

Large Hadron Collider schedule

April 11, 2008

water magnetism

April 11, 2008

Creation of antimatter at the CERN LHC

April 10, 2008

quantum measurement

April 10, 2008

oxidations

April 10, 2008

syringe corrections

April 10, 2008

why no magnetic monopoles

April 10, 2008

microwave heating times

April 10, 2008

green light bulbs?

April 10, 2008

solutes and boiling and freezing

April 5, 2008

power vs.heat

April 5, 2008

energy conservation

April 5, 2008

freezing soy sauce

April 5, 2008

supercool

April 5, 2008

salt and melting ice

April 5, 2008

antibacterial chemicals

April 5, 2008

Earth spinning

April 5, 2008

sun and stars

March 12, 2008

Motion detectors

March 12, 2008

More about black holes...