Re: physical constants
- To: mathgroup at smc.vnet.net
- Subject: [mg82038] Re: physical constants
- From: Steven Siew <siewsk at bp.com>
- Date: Wed, 10 Oct 2007 04:25:31 -0400 (EDT)
- References: <fefj8g$k19$1@smc.vnet.net>
According to NIST the elementary charge is a positive value. http://physics.nist.gov/cgi-bin/cuu/Value?e|search_for=elecmag_in The homepage for NIST is http://physics.nist.gov/cuu/Constants/ elementary charge Value 1.602 176 487 x 10-19 C Standard uncertainty 0.000 000 040 x 10-19 C Relative standard uncertainty 2.5 x 10-8 Concise form 1.602 176 487(40) x 10-19 C