Bill Collins wrote:
>
> >I didn't see much flame but it looked as though there were about 50 arc
> >welders (Bright!) having at it inside.
>
> I was at Everybus the last time they burned a Type 1 case.  Once the block caught fire, everyone stood waaaay back.  I noticed my shirt was glowing, like it was under a black light.

Burning magnesium does give off a significant amount of ultraviolet
light.  The fluorescence it produces often goes unnoticed because the
visible light is so bright.

Larry A.