14 NOV 2014 by ideonexus

 How long is a second?

Electronic/World Wide Web>Internet Article:  O'Callaghan, Jonny (February 18, 2012), How long is a second?, Retrieved on 2014-11-14
  • Source Material [www.howitworksdaily.com]
    • Folksonomies: time measurement
    Folksonomies: time measurement
     1  
    13 JAN 2012 by ideonexus

     Exposition of a new theory on the measurement of risk

    Books, Brochures, and Chapters>Book:  Bernoulli , Daniel (1738), Exposition of a new theory on the measurement of risk, Retrieved on 2012-01-13
  • Source Material [books.google.com]
    • Folksonomies: mathematics measurement
    Folksonomies: mathematics measurement
     1