The Milky Way spins just like an out-of-true wheel
03-11-21, 03:45 PM
#1
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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
"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
03-11-21, 04:27 PM
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That is cool...
...needs an industrial Park truing stand...
...needs an industrial Park truing stand...
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
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03-11-21, 06:05 PM
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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
"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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03-11-21, 06:35 PM
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On overhaul is overdue.
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Vintage, modern, e-road. It is a big cycling universe.
Vintage, modern, e-road. It is a big cycling universe.
03-11-21, 07:08 PM
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I can’t even imagine the scale of the truing stand needed.....
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.
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.
03-11-21, 07:48 PM
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03-12-21, 12:38 AM
#10
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Warped Wheel?
Fork's bent.
03-12-21, 08:34 AM
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Makes you wonder what pedal systems are used by extraterrestrial cultures.
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!
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?
03-13-21, 12:02 AM
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That'll buff out.
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03-13-21, 01:53 AM
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How many worlds ya think are still using down tube shifters?
