What are years... and the galactic supermassive black hole!

What are years... and the galactic supermassive black hole!

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minutephysics • 1M views

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Math topics:
_Rotation_##Rotation##_Angle_##Angle##_Rotation_around_a_fixed_axis_##Rotation around a fixed axis##_Axial_tilt_##Axial tilt
Other topics:
_Units_of_time_##Units of time##_Lunar_calendar_##Lunar calendar##_Tropical_year_##Tropical year##_Month_##Month##_Year_##Year##_Sidereal_year_##Sidereal year##_Milky_way_##Milky way##_Galactic_year_##Galactic year##_Galactic_Center_##Galactic Center##_Milky_Way_##Milky Way##_Theory_of_relativity_##Theory of relativity##_Black_hole_##Black hole##_Theory_of_relativity_##Theory of relativity##_Supermassive_black_hole_##Supermassive black hole##_Planetary_science_##Planetary science##_Solar_System_##Solar System##_Earth_##Earth##_Neptune_##Neptune
video-id: 53glKEPzElA channel_minutephysics_