If you have a current going through a fluorescent bulb tube and you smash it, for a split second there is a yellow flash as the gas escapes. What I'm wondering is what causes the yellow flash if the light coming out originally is a mix of colours that make white light?

Hello,

Inquiry:

From my ancestors, story goes, that after a lightning storm, they would search for rocks from lightning strikes up in the mountains. These rocks, almost completely round, would be used as a health benefit. That is, they would be put in a glass of water, the rock would supposedly "fizz", and they would drink this as a health tonic.

Is there any substance to this, or is it an "old wives tale"?

Thank you,

Stergios Vlioras

P.O. Box 43055,

Burnaby, B.C.

V5G 4S2

ph# 778-837-3405