Word: iridium
(lookup in dictionary)
(lookup stats)
Dates: during 1920-1929
Sort By: most recent first
(reverse)
...mile in diameter called Meteor Crater (TIME, March 25). Last week miners hired by Philadelphia's Daniel Moreau Barringer said that at 1,400 ft. depth they had found the main body of the meteor which made the pit. Drill- ings show 90% iron, 7% nickel, traces of iridium and platinum...
...burglar attempted to burgle the Bureau of International Weights and Measures. He was foiled by the janitor. Within the Bureau building is the Standard Metre and a number of delicate instruments and standards, all made of platinum, iridium or other precious metals...
...scientists ever assembled by any government. The business of the Bureau is to compare and test the standards of weight, length, power, heat, resistance, etc. used in American laboratories, commerce, and universities, with the official standards of the government. Here are kept under glass at even temperature the platinum-iridium bar one meter long and the kilogram of the same material on which our weights and measures are based...