One calm evening in Washington last week a tiny mirror twitched in a tiny spasm. So at the moment did similar mirrors in London, Bombay, Frankfurt am Main, Ottawa, Pasadena, Victoria, New York City. Each twitching mirror reflected a beam of light on a revolving drum covered with photosensitive paper. When seismologists saw these jagged tracks they knew that a mighty earthquake was somewhere in progress.
"Worst earthquake shocks in 35 years of recording," reported Victoria.
"The whole world is shaking!" cried London.
Fordham University said the shock-record on its apparatus was a foot long....