3 ms·
The most surprising fact is that the readings of all these instruments are in sync with each other! We take it for granted, and don't appreciate the mystery. It
by resource0x 8y ago
The most surprising fact is that the readings of all these instruments are in sync with each other! We take it for granted, and don't appreciate the mystery. It very well might be that the Universe forms a complex landscape with varying "laws", with the pockets where the notions of space and time become quite fuzzy and inconsistent; we might live in a rare oasis where the things more or less "make sense". Elsewhere, there might be no time at all. Popular books on physics never mention this possibility.
- auxbuss 8y agoBut "clocks" can only be in "sync" – i.e. record the same time between each "tick" – when they are in the same inertial frame – from special relativity. In addition, there is gravitational time dilation. Thus, the "reality" is that no two clocks are in sync. As Rovelli points out in "Reality Is Not What It Seems", with the precise clocks we have today, it's possible to measure this effect for a difference in altitude of a few centimetres.