Xref: utzoo comp.dcom.modems:3949 sci.physics:8442
Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!oliveb!mipos3!bverreau@mipos2.UUCP
From: bverreau@mipos2.UUCP (stargazer)
Newsgroups: comp.dcom.modems,sci.physics
Subject: Re: TrailBlazer Plus vs. lightning
Message-ID: <204@mipos3.intel.com>
Date: 5 Jun 89 04:57:09 GMT
References: <921@fcs280s.ncifcrf.gov>
Sender: news@mipos3.intel.com
Reply-To: bverreau@mipos2.UUCP (stargazer)
Organization: Microprocessor Component Group, Intel Corp., Santa Clara, CA
Lines: 13

In article <921@fcs280s.ncifcrf.gov> toms@ncifcrf.gov (Tom Schneider) writes:

> At sea level the speed of sound in air is 1116.45 ft/sec.
> Dividing by 5280 ft/mile gives the conversion factor (1/4.73) mi/sec.
> So a better rule is to divide the seconds by 5 to get the distance in miles.

But during a lightning storm the barometric pressure is typically lower than
average.  How would this affect the speed of sound and the conversion rule?

` Bernie Verreau   Microprocessor Design, Intel Corp., Santa Clara, Ca.        '
'                                                                              `
` uucp: ..{hplabs|amdcad|qantel|pur-ee|scgvaxd|oliveb}!intelca!mipos2!bverreau '
' csnet/arpanet: bverreau@mipos2.intel.com                                     `