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How Fast Is It lesson plans

I just uploaded the lesson plans for the “How Fast Is It” video book. Please let me know if you would like any changes.

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2015 Update with Dark Matter and Neutrino Astronomy

Just uploaded the 2015 update to my “How far away is it” YouTube channel. This one highlights Dark Matter. 2015 marked the Hubble Space Telescope’s 25th anniversary. To celebrate, they published a number of spectacular images. We’ll see: • Caverns carved

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Two Year Milestone

Hello, My “How far away is it” YouTube channel is now two years old. It contains two video books: “How far away is it” and “How small is it”. The third video book “How fast is it” on relativity theory

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