I was at a workshop recently where they are working on a device to store energy in a certain application. It involves a spinning mass in a vacuum. Apparently they can get it up to speed and it will still be spinning 24 HOURS later. Insane.
@Sparky started
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I was at a workshop recently where they are working on a device to store energy in a certain application. It involves a spinning mass in a vacuum. Apparently they can get it up to speed and it will still be spinning 24 HOURS later. Insane.