2021-04-08
[public] 376K views, 66.3K likes, 193 dislikes audio only
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Orbital Resonance
Incredibly, three of the four largest moons of Jupiter (Ganymede, Europa and Io) have orbital periods that are whole number ratios with each other (1:2:4). The big gap in Saturn's rings is caused by a moon much further out that has an orbital period double that of the gap! We've even found exoplanet systems with these patterns. They're all the result of orbital resonance. This video explains how that mechanism works.
CORRECTION: In the video I say that Ganymede, Europa and Io are the largest moons are jupiter. Actually here are the 4 largest moons from largest to smallest:
Ganymede
Callisto
Io
Europa
Here's my video on resonance:
Here's my video about bad maths:
This is Dr Becky Smethurst's channel:
https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q
This is Beardyman's channel:
https://www.youtube.com/user/beardyman
This is Jay Foreman's channel:
https://www.youtube.com/user/jayforeman51
This is the Veritasium video mentioned at the start:
Here's the paper I found that explains orbital resonance:
http://articles.adsabs.harvard.edu/pdf/1976ARA%26A..14..215P
Image credits:
Picture of Dwayne Johnson - Aarón Sánchez
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