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Day in History Archive April 13

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

 

Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified. All will eventually be either verified or removed.

Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-)
 

April 13

Sir Robert Watson-Watt, "Father of Radar," Born.  Please click here to visit RF Cafe.

1888: John Hammond, Jr., developer of radio remote control, was born. 1892: Sir Robert Alexander Watson-Watt, "Father of Radar," was born. 1909: Stanislaw Ulam, who determined the way to initiate fusion in a nuclear bomb was to use a fission reaction to create the necessary compression, was born. 1912: Royal Flying Corps was formed (later became the RAF). 1954: Nuclear bomb designer Robert Oppenheimer was accused of being a communist. 1960: The first U.S. navigational satellite, Transit-1B, was launched into Earth orbit. 1970: Apollo 13 announced "Houston, we've had a problem here" after an oxygen tank exploded en route to Moon. 1997: Tiger Woods, 21, became the youngest person to win the Masters Tournament. 2008: John Wheeler, who coined the term "Black Hole," died.

Locations of visitors to this page

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RF Cafe
Erie, PA
(814) 833-1967

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N 42°04.577', W 080°11.757'

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