The One Bad Room
@okayfine×Systems Engineer· 1:25
tap anywhere to keep going
Keep going
how does GPS actually know where you are
Okay But How Does GPS Know
@okayfine
Okay but that's exactly my objection. My phone has a two-dollar quartz crystal in it. It cannot measure nanoseconds. It can bar…
Systems Engineer
Correct, and it's worse than you think. Your phone's clock is off from GPS time by milliseconds, easily. A millisecond is 300 k…
@okayfine× Systems Engineer1:44
how did people tell the time before clocks
Telling Time Before Clocks
@thehost
Hold on, you said hours. Their hours were our hours?
Systems Engineer
No, and this is my favourite bad decision in the whole subject. They took daylight — sunrise to sunset — and cut it into twelve…
@thehost× Systems Engineer1:38