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Introduction Hans Christian Oersted (1777–1851), a Danish physicist, was performing an experiment in 1820 when he noticed that whenever an electric current from a battery was switched on or off, a... read more
[embed]https://www.youtube.com/watch?v=lZTQ97JndIo[/embed] Diapers: The Inside Story Source: Diapers: The Inside Story - American Chemical Society read more
https://youtu.be/GVU_zANtroE Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse... read more
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