2 ms·
You need to multiply by 2 because it's drifting both before and afterwards, hence a little over 30 minutes of total drift.
by CydeWeys 6y ago
You need to multiply by 2 because it's drifting both before and afterwards, hence a little over 30 minutes of total drift.
- _ph_ 6y agoFor the question of the symmetry, only the difference to the noon point is relevant.