Day in Engineering History Archive - April 9
April 9
1770:
Thomas Seebeck, who discovered that an electric current flows
between different conductive materials that are kept at different
temperatures (Seebeck
Effect), was born. 1864:
Sebastian de Ferranti, an electrical engineer who developed
the first 10 kV (4x previous) transmission system and components,
was born. 1865: Robert E. Lee surrendered to Ulysses S. Grant at
Appomattox
Courthouse in VA. 1895: Astronomer
James Keeler proved the rings of Saturn were composed of meteoric
particles. 1899:
James McDonnell, founder of the
McDonnell Aircraft Company, was born. 1927: Bell Laboratories
and the Department of Commerce held the 1st long-distance transmission
of a live picture and voice (television)
simultaneously. 1934:
Oskar von Miller, who pioneered the electric power industry
in Germany, was born. 1940: Germany invaded Denmark and Norway.
1953:
Man in the Dark, the first 3D motion picture produced and released
by a major company, was shown. 1959: NASA announced the selection
of America's first seven
astronauts: Scott Carpenter, Gordon Cooper, John Glenn, Gus
Grissom, Wally Schirra, Alan Shepard and Donald Slayton. 1963: Winston
Churchill becomes first honorary U.S. citizen. 1965: "TIME"
magazine featured a cover with the entire "Peanuts" gang. 1967:
The first
Boeing 737 made its maiden flight. 2003: Newly liberated Iraqi
citizens toppled a statue of
Saddam Hussein in Baghdad.
1770:
Thomas Seebeck, who discovered that an electric current flows
between different conductive materials that are kept at different
temperatures (Seebeck
Effect), was born. 1864:
Sebastian de Ferranti, an electrical engineer who developed
the first 10 kV (4x previous) transmission system and components,
was born. 1865: Robert E. Lee surrendered to Ulysses S. Grant at
Appomattox
Courthouse in VA. 1895: Astronomer
James Keeler proved the rings of Saturn were composed of meteoric
particles. 1899:
James McDonnell, founder of the
McDonnell Aircraft Company, was born. 1927: Bell Laboratories
and the Department of Commerce held the 1st long-distance transmission
of a live picture and voice (television)
simultaneously. 1934:
Oskar von Miller, who pioneered the electric power industry
in Germany, was born. 1940: Germany invaded Denmark and Norway.
1953:
Man in the Dark, the first 3D motion picture produced and released
by a major company, was shown. 1959: NASA announced the selection
of America's first seven
astronauts: Scott Carpenter, Gordon Cooper, John Glenn, Gus
Grissom, Wally Schirra, Alan Shepard and Donald Slayton. 1963: Winston
Churchill becomes first honorary U.S. citizen. 1965: "TIME"
magazine featured a cover with the entire "Peanuts" gang. 1967:
The first
Boeing 737 made its maiden flight. 2003: Newly liberated Iraqi
citizens toppled a statue of
Saddam Hussein in Baghdad.| 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.