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Astro 101: Black Holes

by Sharon Morsink
  • 4.8
Approx. 19 hours to complete
What is a black hole? Do they really exist? How do they form? How are they related to stars? What would happen if you fell into one? How do you see a black hole if they emit no light? What’s the difference between a black hole and a really dark star?...
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Train the Trainer Pro: No Beginners Allowed!

by Jason Teteak
  • 4.4
6 hours on-demand video
·         150+ page workbook It’s also a great way to train members of your own team and get them up to speed in half the time on the latest training techniques, trends and best practices....
$14.99
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