[RPM123]

And that is one tough record player!

http://www.cnn.com/videos/us/2016/07/31/vinyl-record-played-in-space-orig-vstan-aa.cnn

[Wayner]

No.

[Don_S]

No one can hear you scream either.

[JLM]

In real space there'd be no gravity to track with.

[RPM123]

In real space there'd be no gravity to track with.

Unless one were to use a tonearm with an adjustable spring for tracking.


"HOW DOES THE FLOATING RECORD PLAYER WORK?
The Floating Record has been meticulously engineered to play flawlessly in a vertical orientation. The most crucial element for vertical playback was the tone arm. We had to make sure that the force applied to the vinyl was exactly the same as it would be on a high-quality horizontal record player, and we had to make sure that gravity wouldn't act on the stylus to disrupt its motion.
To address the first concern, the tone arm was outfitted with a small, adjustable spring that controls the tracking force. This applies just the right amount of pressure to keep the stylus in contact with the record, and comes pre-set to a tracking force of two grams, which is the optimal tracking force for the Audio Technica cartridge and stylus we use.
To address the second concern, we utilized the tone arm's counterweight to radially balance it. This means that no matter how the tone arm is positioned, it will remain balanced, and gravity will not pull it down. For the record player, this means that the stylus will stay exactly in the center of the record's groove, because gravity isn't affecting its position at all."

https://www.gramovox.com/pages/floating-record

[Wind Chaser]

In real space there'd be no gravity to track with.

Gravity need not apply. Note the appropriate music! https://www.youtube.com/watch?v=x5BWzlxP-80

[Russell Dawkins]

How about a turntable playing under water? (thanks to last post by nathanm)
http://www.thisiscolossal.com/2014/02/submerged-turntable-by-evan-holm/

[charmerci]

No.

Not even a Close-N'-Play??? 

But you can listen to a portable CD player and use it as a stabilizer!

http://motherboard.vice.com/read/watch-what-happens-when-you-turn-on-a-cd-player-in-zero-gravity?utm_source=mbfbads

[Letitroll98]

In real space there'd be no gravity to track with.

Actually there's lots of gravity in space.  It keeps the moon going around the earth and the earth going around the sun, etc.  The reason why the astronauts appear weightless is they are in freefall around the earth, what we call orbit.  It's gravity that keeps them in orbit.

[JLM]

Actually there's lots of gravity in space.  It keeps the moon going around the sun and the earth going around the sun, etc.  The reason why the astronauts appear weightless is they are in freefall around the earth, what we call orbit.  It's gravity that keeps them in orbit.

Actually the moon orbits the earth.  Gravity is everywhere, yes but the tonearm would not track in space without a huge increase in mass sufficient to create enough mutual attraction with the turntable to develop the needed tracking force.

[Wind Chaser]

Are you saying the Dual wouldn't work in space?

[Wind Chaser]

How about a turntable playing under water? (thanks to last post by nathanm)
http://www.thisiscolossal.com/2014/02/submerged-turntable-by-evan-holm/

Impressive, but I wonder if it would still work in much deeper water?

[*Scotty*]

A Dual modified to use a record clamp which would hold the platter and the record in place should work in microgravity.
Scotty

[bside123]

Where does the ground wire go? 

[Wayner]

Impressive, but I wonder if it would still work in much deeper water?

I posted that here a couple of years ago......

[*Scotty*]

The record was played at an altitude of approximately 17mi. above the earth and microgravity was not in effect, only near vacuum conditions. The balloon did not reach low earth orbit.
Scotty
 

[Wayner]

Are you saying the Dual wouldn't work in space?

I will not. If its in the shadows, it will experience absolute zero temperature and the lubrication will seize. If its in the sunshine, it will bake. It will also hum like a bastard from all of the rays hitting it, even tho the cantilever can't move because its either been fried or frozen.

There also might be some gyroscopic issues with the motor running one way (if it could) and the force of it causing the plinth to rotate another, opposite direction.

[Wayner]

Actually the moon orbits the earth.  Gravity is everywhere, yes but the tonearm would not track in space without a huge increase in mass sufficient to create enough mutual attraction with the turntable to develop the needed tracking force.

Very good, just to add something.....The earth has a magnetic field because it has an iron core. The iron core acts like a magnet and keeps the moon in orbit around the earth. The iron core also gives us the Van Allen radiation belt which keeps us all from frying from all of the different rays from the sun, the galaxy and the universe. The iron core of the earth also makes the earth spin unlike some of the other planets in our solar system. Without looking it up, I believe Mercury or Venus does not spin (no iron core) so one side gets baked to shit, and the other side is a frozen wasteland.....for ever.

BTW, my brother's wife's sister's husband is a co-author of the book "The Cambridge Photographic Atlas of the Planets" and is an advisor for NASA. He's a pretty interesting fellow and professor at Oxford University in England. Pretty hard to communicate with because I'm such a dumb-ass......

'ner

[*Scotty*]

Some factual information about orbital mechanics, planetary cores and why Venus rotates in an opposite direction from the other planets.
https://en.wikipedia.org/wiki/Venus
http://www.scientificamerican.com/article/why-and-how-do-planets-ro/
https://en.wikipedia.org/wiki/Planetary_core
http://www.spaceanswers.com/solar-system/why-do-planets-have-magnetic-fields/
http://www.space.com/54-earth-history-composition-and-atmosphere.html
http://www.windows2universe.org/the_universe/uts/moon1.html
Length of days and years of planets orbiting the Sun, yes they left Pluto out.
http://www.universetoday.com/37507/years-of-the-planets/
Scotty

[smk]

This is one of the best websites to learn interesting things.