Marshmallows of the speed of light!

[ciphergoth]

Thanks, meta!

http://www.physics.umd.edu/ripe/icpe/newsletters/n34/marshmal.htm

Comments

[akicif.livejournal.com]

Wow... that's neat. It certainly beats measuring the distance to the Moon with a meter stick, a penny and a photo of a partial lunar eclipse (oh, and I think you had to know the diameter of the Earth, but this is a previously solved problem).