3 ms·
So if I understand correctly, time reversal means that all the object speeds get inverted, but the fields remain the same. If you change the sign of the field (
by empiricus 11y ago
So if I understand correctly, time reversal means that all the object speeds get inverted, but the fields remain the same. If you change the sign of the field (gravity becomes repulsive) then things will explode very quickly :)
- pdpi 11y agoNothing gets reversed at the equation level. It's just that every equation with a dt in it gives you reversed results with a negative dt.