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The Milky Way spins just like an out-of-true wheel

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The Milky Way spins just like an out-of-true wheel

Old 03-11-21, 03:45 PM
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leftthread
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The Milky Way spins just like an out-of-true wheel

The Milky Way spins just like an out-of-true wheel.



"Data from ESA's star-observing satellite Gaia shows that the warped galactic disc of the Milky Way precesses, or wobbles, similarly to the motion of a spinning top. The warp moves around the centre of the Milky Way faster than previously expected, completing one rotation in 600 to 700 million years. That's however, still slower than the speed at which the stars in the disc orbit the galactic centre. Our mother star, the Sun (shown in the animation as the small yellow dot), for example, requires only 220 million years to complete one orbit.The speed of the warp's precession led astronomers to believe that it must be caused by something rather powerful, such as an ongoing collision with a smaller galaxy."

https://sci.esa.int/web/gaia/-/the-w...a-spinning-top
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Old 03-11-21, 04:27 PM
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That is cool...

...needs an industrial Park truing stand...
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Old 03-11-21, 04:35 PM
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A long time ago ... somebody hit a big pothole.
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Old 03-11-21, 06:05 PM
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Originally Posted by leftthread View Post
The Milky Way spins just like an out-of-true wheel.

"Data from ESA's star-observing satellite Gaia shows that the warped galactic disc of the Milky Way precesses, or wobbles, similarly to the motion of a spinning top. The warp moves around the centre of the Milky Way faster than previously expected, completing one rotation in 600 to 700 million years. That's however, still slower than the speed at which the stars in the disc orbit the galactic centre. Our mother star, the Sun (shown in the animation as the small yellow dot), for example, requires only 220 million years to complete one orbit.The speed of the warp's precession led astronomers to believe that it must be caused by something rather powerful, such as an ongoing collision with a smaller galaxy."

https://sci.esa.int/web/gaia/-/the-w...a-spinning-top
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Old 03-11-21, 06:35 PM
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On overhaul is overdue.
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Old 03-11-21, 07:08 PM
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I can’t even imagine the scale of the truing stand needed.....
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Old 03-11-21, 07:25 PM
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My LBS guy could fix that with one massive whack against a ginormous butcher block.
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Old 03-11-21, 07:41 PM
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In my religion, we believe that a giant Chris King hub is at the center of each galaxy. What are thought to be black-holes are actually thru-axle worm-holes in space-time.
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Old 03-11-21, 07:48 PM
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Originally Posted by canklecat View Post
My LBS guy could fix that with one massive whack against a ginormous butcher block.
While they're at it, can they true up Earth too? https://www.geospatialworld.net/blog...n%20its%20axis.
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Old 03-12-21, 12:38 AM
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Warped Wheel?

Fork's bent.
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Old 03-12-21, 08:34 AM
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Makes you wonder what pedal systems are used by extraterrestrial cultures.
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Old 03-12-21, 09:07 AM
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Harder to get more vintage than that! Someone should post it in the "What's it Worth" forum!
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Old 03-12-21, 09:35 PM
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I'm surprised that nobody has asked how wide a tyre it will accept. Maybe a 38 x 10E2 light years?
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Old 03-13-21, 12:02 AM
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That'll buff out.
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Old 03-13-21, 01:53 AM
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How many worlds ya think are still using down tube shifters?
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