🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.physics
Article #2439

Re: Electrons in the body

#2439
From: Vaughan R. Pratt
Date: Thu, 10 Sep 1992 05:24
25 lines
1673 bytes
In article <1992Sep10.014518.15092@nntpd.lkg.dec.com> moroney@ramblr.enet.dec.com writes:
>In article <79438@ut-emx.uucp>, ofman@zonker.ph.utexas.edu (Leon Ofman) writes...
>>In article <00960110.2D669340@Msu.oscs.montana.edu> uchpcjv@Msu.oscs.montana.edu writes:
>>>>>Could anyone give me a rough estimate of the percent of mass of a human
>>>>>body which is made of electrons? 
>
>>>  ROUGH ESTIMATE:  about 1/2000 of body mass.  Rought estimate.
>
>>Rough estimate: 1/1000 (don't forget the neutrons!)
>
>That would make it about 1/4000 or so.

Don't forget hydrogen (no neutrons).  This and tightening up the 2000
number to 1840 yields 1/3350, which should be within a percent or so of
the truth.

(Hydrogen makes a 10% difference for water, which is 72% of us, and
about a 7% difference for the remaining 28%.  The typical vertebrate
organic molecule is mostly H,C,O,N with roughly as many H's as the
combined number of C,O,N's.)

-- 
======================================================| God found the positive
Vaughan Pratt   pratt@cs.Stanford.EDU   415-494-2545  | integers, zero was
======================================================| there when He arrived.
Technical Details
Message-ID: <1992Sep10.052450.5012@CSD-NewsHost.Stanford.EDU>
Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!Sunburn.Stanford.EDU!pratt
References: <1992Sep10.014518.15092@nntpd.lkg.dec.com>

Show Full Headers
Complete Article Headers
Newsgroups: sci.physics
Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!Sunburn.Stanford.EDU!pratt
From: pratt@Sunburn.Stanford.EDU (Vaughan R. Pratt)
Subject: Re: Electrons in the body
Message-ID: <1992Sep10.052450.5012@CSD-NewsHost.Stanford.EDU>
Sender: news@CSD-NewsHost.Stanford.EDU
Organization: Computer Science Department,  Stanford University.
References: <1992Sep10.014518.15092@nntpd.lkg.dec.com>
Date: Thu, 10 Sep 1992 05:24:50 GMT
Lines: 25