Biggest Possible Crowbar, Sun Illusion, Measuring Temperature on the Moon | Q&A 291

👉 Watch the extended Overtime Q&A:
https://www.patreon.com/posts/overtime-for-qa-120978114

How big can a space crowbar be? Why does the Sun look bigger near the horizon? How do we measure temperature on the Moon? Answering all these questions and more in this Q&A show.

00:00 Start
00:23 How do we measure temperature on the Moon or in space?
03:51 Can you see more of the Milky Way in the Southern Hemisphere?
06:07 What is metallic hydrogen?
10:16 Is the Sun bigger near the horizon?
12:45 What's Gaia's role in the distance ladder?
15:45 How big can a crowbar be in space?

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⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)

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