Day in Engineering History Archive - July 9
July 9
1856: Serbian-American high voltage experimenter
Nikola Tesla
was born. 1865:
Count
Amedeo Avogadro, who discovered that at the same T and P all
volumes of a perfect gas contained the same number of particles,
and defined 6.022 x 10^23 units per mole of a substance, died. 1872:
The doughnut cutter was patented by
John F. Blondel. 1894: Percy Spencer, inventor of the
microwave oven, was born. 1910:
Walter Brookins became the first to fly an airplane a mile in
the air. 1911:
John
Wheeler, who coined the term "Black Hole," was born. 1919: Present-day
Ford Motor Company incorporated in DE. 1932: King Gillette,
inventor of the
safety razor, died. 1953:
New York Airways began the first commuter passenger service
by helicopter. 1956: Dick Clark first hosted "Bandstand." 1962:
The "Starfish
Prime" high altitude nuclear tests were performed at Johnston
Island. 1964: My sister, Tina, was
born - Happy Birthday! 1968: Frederick Schollhammer received
a patent for his "Portable Beam Generator," otherwise known as a
hand-held laser ray gun. 1979:
Voyager 2,
made its closest approach to Jupiter. 1982: A man broke into
Buckingham Palace and spent ten minutes talking to the Queen
in her bedroom. 1999: A jury in Los Angeles ordered General Motors
to pay $4.9B to six people severely burned when their
Chevrolet Malibu exploded in flames in a rear-end collision.
1999:
Charles P. "Pete" Conrad, the third human to walk on the moon
during Apollo 12, died.
1856: Serbian-American high voltage experimenter
Nikola Tesla
was born. 1865:
Count
Amedeo Avogadro, who discovered that at the same T and P all
volumes of a perfect gas contained the same number of particles,
and defined 6.022 x 10^23 units per mole of a substance, died. 1872:
The doughnut cutter was patented by
John F. Blondel. 1894: Percy Spencer, inventor of the
microwave oven, was born. 1910:
Walter Brookins became the first to fly an airplane a mile in
the air. 1911:
John
Wheeler, who coined the term "Black Hole," was born. 1919: Present-day
Ford Motor Company incorporated in DE. 1932: King Gillette,
inventor of the
safety razor, died. 1953:
New York Airways began the first commuter passenger service
by helicopter. 1956: Dick Clark first hosted "Bandstand." 1962:
The "Starfish
Prime" high altitude nuclear tests were performed at Johnston
Island. 1964: My sister, Tina, was
born - Happy Birthday! 1968: Frederick Schollhammer received
a patent for his "Portable Beam Generator," otherwise known as a
hand-held laser ray gun. 1979:
Voyager 2,
made its closest approach to Jupiter. 1982: A man broke into
Buckingham Palace and spent ten minutes talking to the Queen
in her bedroom. 1999: A jury in Los Angeles ordered General Motors
to pay $4.9B to six people severely burned when their
Chevrolet Malibu exploded in flames in a rear-end collision.
1999:
Charles P. "Pete" Conrad, the third human to walk on the moon
during Apollo 12, died. | 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.
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 ;-) A couple years ago, I began commemorating the birthdays of notable people and events with
special RF Cafe logos. Where available, I like to use images
from postage stamps from the country where the person or event occurred.