Speed of light in glass ~200 km/s 100 km rtt = 1ms
Coast-to-coast ~6000 km ~60ms Tim:> On Sat, Jun 20, 2020 at 12:27 PM William Herrin <b...@herrin.us> wrote: > Howdy, > > Why is latency between the east and west coasts so bad? Speed of light > accounts for about 15ms each direction for a 30ms round trip. Where > does the other 30ms come from and why haven't we gotten rid of it? > > c = 186,282 miles/second > 2742 miles from Seattle to Washington DC mainly driving I-90 > > 2742/186282 ~= 0.015 seconds > > Thanks, > Bill Herrin > > -- > William Herrin > b...@herrin.us > https://bill.herrin.us/ > -- Tim:>
