The Gravity of the Situation: Crash Course Astronomy #7

In today's episode, Phil looks at how gravity plays out across the universe.

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Chapters:
Introduction 00:00
Understanding Mass 1:11
What is Gravity? 2:17
Different Types of Orbit 3:41
Escape Velocity 5:30
Why Are Astronauts Weightless? 7:03
Gravity Warps Space 8:17
Review 8:43
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PHOTO/VIDEO CREDITS

[Pyrex]

If I was a science teacher, I would feel compelled to show each of these videos for 10 minutes per class. They're amazing

[BriWhoSaysNi]

Suddenly I'm actually glad I took AP Calc because when he started talking about the rock that started at escape velocity getting slower and slower but not stopping I was like "Oh, you mean a limit?" and it made the whole concept easier to get. So much for never using it. lol

[charleslarue]

If I might make a recommendation, oh fellow astronomer, I would suggest more graphics for things like the shapes of orbits and whatnot.

[emmettdel]

You're an awesome teacher! I love how engaged you are, it makes me feel like I'm watching Bill Nye again

[sonalirai]

6:17 that part was funny like
“I hope you kissed your rock goodbye because it ain’t coming back”
I like Phil he is funny

[Woodenfan]

This brings me flashbacks to physics. 

Gotta say, I got more out of this video than an entire lecture or two of physics on gravity. 

[IMVADER]

Astronomy class was one of the few I looked forward to in high school. Classroom in a planetarium every day, watching the stars spin by while listening to Stairway to Heaven...this isn't like my class, but it's kept me as interested as I have been in that room for my high school career.

Really glad I found this series from the start, and I won't be stopping until you guys do, which hopefully is in a VERY long time :)

[Manish-njjo]

Your videos are highly educational. You and the rest of the crash course team make education fun and interesting to learn. Keep it up.

Don't forget to be awesome crash course.

[darkmatter]

4:29 I IMMEDIATELY Thought of Toy Story when he said that
Woody: THAT WASN'T FLYING! THAT WAS FALLING WITH STYLE!!!

[sindrebrve]

Can you start
Crash Course: Geography

I'll give you 50% of the views

[WrathOfMega]

So what you're saying is; the moon is literally just falling at the Earth and missing.
Weeeeird.

[annamattos]

OMG, I love that Douglas Adams definition of flying. I have been laughing with it for years and now I know why it is also cientifically accurate. Thank you!!!

[ScienceAsylum]

Hey! I uploaded a science video back in July with this same exact title! ...great minds think alike?

[fishcake]

How about Crash Course Engineering (Mech, Electrical, Aero etc)?  

[rosebud]

I really wish he would do a series showing how to actually measure and calculate luminosity, distance between celestial objects, blue/red shift, etc.

In simplification, it would be amazing if he had a series specifically dedicated to cosmology.

[pizzael]

I love his explanations for things! Just when I'm about to feel like I can't wrap my head around it, he says something that will simplify it :). Go Phil!

[headrockbeats]

Easily my favorite Crash Course series so far. KEEP IT UP!

[carterwilliamson]

Looks like we're going to learn about gravitational lensing!!!! Fun

[gabrielrangel]

There should be a Crash Course Maths, or rather, Crash Course Calculus, Crash Course Linear Algebra, so on. Why is it that there's no Crash Course on Maths?

[Lee_yourboylee]

Great job guys, this is proving to be another wonderful CC.  They enrich my life immensely.  Genuinely can't thank you enough.