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.
We tried a hand boiler to see who would win.
kids had a good
We did too.
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