web lab

(coefficient of stiffness) C = square root of C / P (density) ~ 768mph

« Back to posts
  • Viewed
    times
August 28, 2010

that french postage stamp from the 1800's

  • Edit
  • Delete
  • Tags
  • Autopost

Sageiiblue15

i bought a radio book in the 1990's from c1930. In it was a stamp c1878 sage type II 15c Blue - very old, not worth much http://is.gd/eIUus

Posted by brian greene brian greene

Tweet
  • 0 responses
  • Like
  • Comment