David (Normandy) wrote:
The kids
were highly impressed with magnesium ribbon burning in pure oxygen -
they were blind for a while with "welders arc eye" but what the hey.

You might know about chemistry, but you know nothing about welding. Arc
Eye (photokeratitis) is a UV burn to the cornea (often confused with the
much worse "flash" which is a UV burn to the retina).

Had you given those children Arc Eye you would have found youself in court.

Tom