Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!CS.UCL.AC.UK!J.Crowcroft
From: J.Crowcroft@CS.UCL.AC.UK (Jon Crowcroft)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: World record furthest telnet: Australia -> Sweden
Message-ID: <8907031305.AA24034@ucbvax.Berkeley.EDU>
Date: 3 Jul 89 09:32:29 GMT
References: <481@logicon.arpa>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15



 >The radius of the Earth is about 4000 miles, which gives a
 >circumference of about 25000 miles.  The speed of light is about
 >186000 miles per second, so the lower bound for going around the world
 >is 25000/186000 == 0.13 seconds or so.

 Jeff 

why do we have to go round - right frequency signalling (say
neutrino's) and we could go thru - this gives

4000/186000 = .021 seconds, or 21 msecs :-) 

 jon