Avagadro's number is used to convert natural unit mass to conventional a conventional unit:
Space-time Units Conventional Units s space 4.558816?10-6 cm 4.558816?10-6 cm t time 1.520655?10-16 sec 1.520655?10-16 sec s/t speed 2.997930?1010 cm/sec 2.997930?1010 cm/sec s/t2 acceleration 1.971473?1026 cm/sec2 1.971473?1026 cm/sec2 t/s energy 3.335635?10-11 see/cm 1.49175?10-3 ergs t/s2 force 7.316889?10-6 sec/cm2 3.27223?102 dynes t/s4 pressure 3.520646?105 sec/cm4 1.57449?1013 dynes/cm2 t2/s2 momentum 1.112646?10-21 sec2/cm2 4.97593?10-14 g-cm/sec t3/s3 inertial mass 3.711381?10-32 sec3/cm3 1.65979?10-24 g from: http://library.rstheory.org/books/nbm/13.html -----Original Message----- From: mix...@bigpond.com [mailto:mix...@bigpond.com] Sent: Friday, April 20, 2012 10:53 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Znidarsic's constant In reply to Hoyt A. Stearns Jr.'s message of Fri, 20 Apr 2012 19:09:27 -0700: Hi, [snip] >Only three values are needed to perform all calculations: c, the Rydberg >frequency, and Avagadro's number. Almost any three natural constants are enough to derive all the rest. This is well known in physics. However Avogadro's number is not a natural constant, because it's based upon our definition of the gram, which is arbitrary. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html