Monday, October 19, 2009

Fruit Ballistics

In America anything is possible and everything possible is performed.




3 comments:

Deborah Dowd said...

At Jefferson Lab where I work we used to have a fall festival and a highlight was pumpkin launching in all manner of apparatus designed by brilliant physicists and engineers!

LMH said...

I've heard that if you freeze a pumpkin in liquid nitrogen for long enough and then drop it off a building, it will glow as it breaks. The phenomenon is called triboluminesence. As a chemist, I have access to both pumpkins and liquid nitrogen, but I have never tried it. It's the same principle as wintergreen lifesavers. I'm guessing it has to be pretty dark to appreciate it.

http://en.wikipedia.org/wiki/Triboluminescence

Bob del Grosso said...

LMH
I've seen triboluminescence and have long believed that it is a manifestation of the piezo electrical phenomenon. I'll bet that is the hell what it is.

http://en.wikipedia.org/wiki/Piezoelectricity

Thanks for the salubrious dose of science.