Comment by Gravityloss
Comment by Gravityloss 6 months ago
Yea and those happen when other forces than gravity come into play. When matter starts colliding.
Comment by Gravityloss 6 months ago
Yea and those happen when other forces than gravity come into play. When matter starts colliding.
The point is that the gravity interactions are time reversible. Not so with friction etc.
You don't understand my point. If we watch purely gravity interactions, the video can be reversed and you wouldn't be able to detect it.
If a meteor crashes into the moon, there's other effects than gravity that makes the video not reversible. Ie it's not only gravity.
That's the point.
In other words, if a comet approached the moon at high speed, missed and slingshotted in another direction, it would be traveling away from the moon, but the video would be time reversible and you couldn't be able to detect it. Gravity only interaction.
Every object has been subject to forces other gravity at some point.
And the point is that sometimes comets do indeed fall into the Sun. If you object to people calling that a comet that’s fine - we can use whatever name you want.