4 ms·
All planets (in the same plane of relativity) agree on the length of a second. The length of a day varies - both on earth and on mars, and is meaningless for pe
by midasuni 3y ago
All planets (in the same plane of relativity) agree on the length of a second. The length of a day varies - both on earth and on mars, and is meaningless for people in orbit, but a second is a second.
- contravariant 3y agoI think you forgot about general relativity there. Even just for satellites the length of a second is measurably different.
- bavell 3y agoRight, the passage of time is affected by how deep in a gravity well you are (i.e. how much acceleration you are experiencing). Time passes faster for satellites than for ground stations.