Template:Selected anniversaries/August 18: Difference between revisions

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||1886: Eli Whitney Blake dies ... American inventor, invented the Mortise lock (b. 1795)
||1886: Eli Whitney Blake dies ... American inventor, invented the Mortise lock (b. 1795)


||1890: Erich Kamke born ... mathematician, who specialized in the theory of differential equations. Also, his book on set theory became a standard introduction to the field.
||1890: Erich Kamke born ... mathematician, who specialized in the theory of differential equations. Also, his book on set theory became a standard introduction to the field. Pic.


||1891: The first rainmaking experiments in the U.S. were conducted near Midland, Texas, paid for by a grant from the U.S. government. Patent attorney Gen. Robert Dyrenforth set off explosive balloons and artillery to try to make rainclouds develop. At a time of extreme drought, any effort with a hope of success may have been thought worthwhile to try, but there were no results. The method chosen was to test a theory that rainstorms seemed often to occur where major battles had taken place during the Civil War, and they may have been because of the effect of smoke, dust and disturbances in the air from artillery.
||1891: The first rainmaking experiments in the U.S. were conducted near Midland, Texas, paid for by a grant from the U.S. government. Patent attorney Gen. Robert Dyrenforth set off explosive balloons and artillery to try to make rainclouds develop. At a time of extreme drought, any effort with a hope of success may have been thought worthwhile to try, but there were no results. The method chosen was to test a theory that rainstorms seemed often to occur where major battles had taken place during the Civil War, and they may have been because of the effect of smoke, dust and disturbances in the air from artillery.

Revision as of 06:25, 18 August 2018