Tides: Crash Course Astronomy #8

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Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions.

Gravity Over Distance 0:44
Tidal Force Parameters 1:35
Battle of the Bulges 2:55
Tidal Lock 6:17

PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Follow Phil on Twitter: https://twitter.com/badastronomer

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Photo & video credit: “NASA’s Scientific Visualization Studio”
http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4236 Photo credit: “NASA’s Scientific Visualization Studio”
The Hopewell Rocks – https://www.youtube.com/watch?v=EnDJ6_XpGfo


TypicalFatGamer says:

jesus christ yellow is definitely not his color, ew, and the shirt looks way too big on him, change it please

Ekeesha Rathnayake says:

i like the videos but they take a long time and there is so much information.

tarapon kongjampee says:

His accent and his phases of speaking is really clear. It's easy to understand without subtitle. Thank you for uploading these videos. I can't imagine how am i gonna survive through the semester without this channel.

Pablo Krapacher says:

Your videos are just so absolutely fascinating, I've learnt so much about astronomy just from this crash course. It really shows how amazing astronomy is. Thank you for taking the effort to make these videos!

Aaron Rohrke says:

How the heck did we figure this out?! #GoScience

Kate Pugmire says:

You should really make a video about solstices and equinoxes! I love using these to teach science. My students love watching and learning from Phil. I've been teaching seasons and was sad you don't have one on solstices and equinoxes.

Uncle Ben says:

Ok I have a question: What would happen if we destroyed the moon? 🙂

malachi lockridge says:

thnx for the vid

theCountniggula says:

if the oblong nature of the moon caused it to become tidal locked, what keeps our planet (or any in our solar system) from acquiring tidal lock with the sun?

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