There’s also a new “updated” version, Secret Worlds, made by Michael W. Davidson at Florida State University, which is available online. You can either control the zooming yourself, or set it on auto. Instead of a Chicago picnic, this one centeres on the National High Magnetic Field Laboratory in Tallahassee, Florida.
Okay, maybe it’s not exactly a video, but it’s close. This is a great add-on for the day you teach scientific notation. If nothing else, it emphasizes how radically different the world looks as you increase or decrease magnification by powers of 10. I also like to point out the empty space inside the atom after you have moved inside the electron cloud. Students have no doubt heard that objects are not really “solid” as our atoms are mostly empty space, this might peak their interest a little.
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