Making lip balm
During the show I got to shoot Mrs. McDavid and my helpers.
The cannon was powered by
liquid nitrogen
Liquid
nitrogen
canon
The thermite demo was done outside for reasons of safety.
Thermite is a mixture of iron oxide and powdered aluminum.
It requires a very high temperature to ignite it (provided by a burning
strip of magnesium).
Once it gets going it can reach 4500 degrees F.
The molten iron that results is hot enough to melt through an aluminum
frying pan.
The washed out image below was taken from the middle of the video when
the reaction was at its peak.
The result is a very overexposed frame.
Thermite
We tried a hand boiler to see who would win.
The
kids had a good
time
We did too.
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