Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2001

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: LightYear Conversion is Incorrect in Units Package

  • To: mathgroup at smc.vnet.net
  • Subject: [mg28627] Re: LightYear Conversion is Incorrect in Units Package
  • From: "Urijah Kaplan" <uak at sas.upenn.edu>
  • Date: Wed, 2 May 2001 03:37:20 -0400 (EDT)
  • Organization: University of Pennsylvania
  • References: <9cle01$18s@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

The plot thickens...it seems that Mathematica uses a year of 365.24219 days
or so, but the National Institute of Science and Technology says (see
http://physics.nist.gov/Pubs/SP811/contents.html page 64 of the pdf or you
can find it at http://physics.nist.gov/Pubs/SP811/appenB8.html ) mandates
that for this purpose, a year is 365.25 days, which makes a light year
9.4607*^15*Meter, which is different from what Mathematica says. So it is a
bug!




  • Prev by Date: Re: How to export Mathematica tables to Excel files?
  • Next by Date: Re: Req: How to export Mathematica tables to Excel files?
  • Previous by thread: RE: LightYear Conversion is Incorrect in Units Package
  • Next by thread: Re: LightYear Conversion is Incorrect in Units Package