Still wrong. The speed of light is 299.792 458 x 10^6 m/s (2.997 924 58 x 10^8 m/s).
Incidentally, the solidus (/) is not used where the units are spelled out. It's either meter per second or m/s. By the way, your light is still slow. Try removing the decimal point in the definition of the meter. Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator] >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On >Behalf Of Brij Bhushan Vij >Sent: Tuesday, December 03, 2002 13:30 >To: U.S. Metric Association >Subject: [USMA:23756] Re: Dallasnews - kilogram > > >Hi friends: >My appology, I missed to typr (x10^8). >It should have been 299.7924562 x 10^8 metre/second. I know the current >definition, One Metre=1/299.792 458 s. > The term "pico-metric second* related to the interval, then defined as >metric second =43.2% of SI-second (s). Sorry for omission/lapse! >Brij > >>From: "Bill Potts" <[EMAIL PROTECTED]> >>Reply-To: [EMAIL PROTECTED] >>To: "U.S. Metric Association" <[EMAIL PROTECTED]> >>CC: <[EMAIL PROTECTED]> >>Subject: [USMA:23750] Re: Dallasnews - kilogram >>Date: Tue, 3 Dec 2002 11:29:38 -0800 >> >>That's very slow light. >> >>I think you meant 299.792 456 2 Mm/s. The correct figure, by the way, is >>299.792 458 Mm/s. The meter is defined as the distance traveled >by light in >>1/299.792 458 s. The official definition uses only that fraction and does >>not attempt to rationalize it to a non-fraction. However, if it were >>expressed as a non-fraction, it would be 3.335 640 95 ns, not 77.162 709 5 >>ps. >> >>And what's a "pico-metric second?" The term is picosecond (ps). >> >>Bill Potts, CMS >>Roseville, CA >>http://metric1.org [SI Navigator] >> >> >-----Original Message----- >> >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On >> >Behalf Of Brij Bhushan Vij >> >Sent: Tuesday, December 03, 2002 11:01 >> >To: U.S. Metric Association >> >Cc: [EMAIL PROTECTED] >> >Subject: [USMA:23748] Re: Dallasnews - kilogram >> > >> > >> >James and John Nichols, sirs: >> >Refined value for velocity of light, c, was reported by Time, >New York in >> >their issue of 4 December 1972 as: 299.7924562 metre/second; and I >> >attempted >> >to define in term for measure of length Unit,METRE to be the distance >> >traversed by light during 77.1627095 pico-metric second (Refer: The >>Metric >> >Second; ISI Bulletin, Vol 25, No.4, 1973 April - a publication of >> >Bureau of >> >Indian Standards, New Delhi). >> >Regards, >> >Brij Bhushan Vij<[EMAIL PROTECTED]> >> > >> >>From: "James R. Frysinger" <[EMAIL PROTECTED]> >> >>Reply-To: [EMAIL PROTECTED] >> >>To: "U.S. Metric Association" <[EMAIL PROTECTED]> >> >>Subject: [USMA:23741] Re: Dallasnews - kilogram >> >>Date: Tue, 03 Dec 2002 09:44:08 -0500 >> >> >> >>John Nichols wrote: >> >> > >> >> > I thought someone found that c is not constant recently but is >>slowing >> >>up >> >> > like me. >> >> > >> >> > Just a thought. >> >> >> >> And still a fairly new hypothesis as I understand it, John. >> >This is far >> >>from being widely accepted. However, the change of other >constants (such >> >>as G, the gravitational constant) are fairly widely believed to be >> >>changing very slowly over time; that comes from the general theory of >> >>relativity and it relates to the cosmological constant that Einstein >> >>suggested, then removed, then wished he hadn't. Put it up >there with the >> >>recent "dark energy" hypothesis. I think the two are related, actually. >> >> >> >> For practical purposes, though, the effect on SI units is >> >vanishingly >> >>small. We would be overly proud to consider that our standards will >> >>stand for millions of years. >> >> >> >>Jim >> >> >> >>-- >> >>James R. Frysinger >> >>Lifetime Certified Advanced Metrication Specialist >> >>Senior Member, IEEE >> >> >> >>http://www.cofc.edu/~frysingj >> >>[EMAIL PROTECTED] >> >>[EMAIL PROTECTED] >> >> >> >>Office: >> >> Physics Lab Manager, Lecturer >> >> Dept. of Physics and Astronomy >> >> University/College of Charleston >> >> 66 George Street >> >> Charleston, SC 29424 >> >> 843.953.7644 (phone) >> >> 843.953.4824 (FAX) >> >> >> >>Home: >> >> 10 Captiva Row >> >> Charleston, SC 29407 >> >> 843.225.0805 >> > >> > >> >_________________________________________________________________ >> >Add photos to your messages with MSN 8. Get 2 months FREE*. >> >http://join.msn.com/?page=features/featuredemail >> > > > >_________________________________________________________________ >Add photos to your messages with MSN 8. Get 2 months FREE*. >http://join.msn.com/?page=features/featuredemail
