Telling Time Before Clocks
@thehost×Systems Engineer· 1:38
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
why does wifi get worse in one specific room
The One Bad Room
@okayfine
Okay but you just told me I have ninety decibels of room. A wall is not ninety decibels. You've argued yourself out of your own…
Systems Engineer
Fair hit, and I'll cash it out. Ten metres of open air at 2.4 GHz is already about 60 dB of loss — that's just the signal sprea…
@okayfine× Systems Engineer1:25