Gallium (beating heart) - Periodic Table of Videos
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The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about gallium. Discover gallium and be amazed as you watch the experiment called "the beating heart".
Galinstan is an alloy of gallium, indium and tin. Why is it used instead of mercury to make clinical thermometers?
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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