Monday, May 4, 2015

4 May Knowledge History - Science, Engineering and Management




Birthdays

1825 - Thomas Henry Huxley

Nobel Prize Winners


Patents

1943 Patent for helicopter controls obtained by Igor Sikorsky.
Sikorsky is also  inventor of  fixed winged and multi-engined aircraft, transoceanic flying boats and helicopters.


http://todayinsci.com/5/5_04.htm

Knowledge History of the Day - Index for the Year

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