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Cold Whistling Tea Kettle
aaronakeller
370 views
A tea kettle is shown to whistle as if full of boiling water. It rests on a plastic bucket but the rush of 'steam' from the whistle is so fast that it is barely audible. Wh...
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Trains in Boston
aaronakeller
906 views
Several different trains in the Boston area. They include the Needham line commuter rail, the Orange Line in Rapid Transit, and an Amtrak train passing by through a station.
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Giant Vacuum Cleaner
aaronakeller
307 views
For super-sized dust bunnies.
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Fountains in Downtown Boston
aaronakeller
100 views
Fountains in Downtown Boston
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Copper Silver Gold Penny
aaronakeller
999 views
Aaron Keller, Chemistry Teacher, talks about alchemy and performs a demonstration which has the appearance of turning copper pennies into silver and then into gold. Of cour...
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Chemistry and Magic
aaronakeller
1,131 views
Aaron Keller, Chemistry Teacher, demonstrates the power of the superabsorbent polymer called sodium polyacrylate. He does so through the use of a simple magic trick. Explan...
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Liqud Nitrogen and Fog
aaronakeller
1,605 views
Aaron Keller, Chemistry Teacher, talks about making fog using liquid nitrogen and the difference between fog and steam and how to turn steam into fog.
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The Leidenfrost Effect
aaronakeller
4,187 views
Aaron Keller, Chemistry Teacher, talks about and demonstrates the Leidenfrost effect using both liquid nitrogen and water. The Leidenfrost effect occurs when a liquid comes...
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Liquid Nitrogen, again
aaronakeller
2,451 views
Aaron Keller, Chemistry Teacher, talks about nitrogen in the atmosphere, making liquid nitrogen from the air, Dewar flasks, the temperature-volume proportion for gases at c...
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Dry Ice
aaronakeller
1,457 views
Aaron Keller, Chemistry Teacher, demonstrates different things that can be done with dry ice. These demonstrations include a look at how it can be used to create a water-va...
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