Tag Archive: chemistry


Bill the engineerguy demonstrates the temperature-dependent shape memory of nitinol metal. He explains how “twinning” in the crystal structure of nitinol produces the memory effect. He shows a nitinol-based engine that is powered by temperature differences. He closes the video with a description of superelasticity, a phenomenon related to the memory effect, which he demonstrates with a cardiac stent.

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My Dog Reviews Soap

YouTuber JennaMarbles has a dog who is obsessed with soap, so she did the obvious thing and brought home lots of different kinds of soap to see which one he wants to rub on the hardest. NATCH.

 

Hourglass Filled With Mercury

Don’t try this at home, kids.

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