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(1758– 1840), German physician and astronomer, born
in Abergen (now part of Bremen). He was educated at the University
of Göttingen and practiced medicine at Bremen. In 1779
he devised a method, still employed by astronomers, for calculating
the orbits of comets. (Olbers discovered several comets, the first,
named after him, in 1815.) In 1781 he identified Uranus as a planet
rather than as a comet, as had previously been assumed. He discovered
the asteroids Pallas in 1802 and Vesta in 1807 and first proposed
that all asteroids are fragments of a shattered planet that formerly
revolved around the sun. He observed, in 1826, that the night sky
should be uniformly illuminated if the universe were infinite and
homogeneous, with stars in every direction. This observation, called
Olbers’ paradox, was only resolved with the discovery of
the
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Wednesday, December 02 at 8 PM EST
Thursday, December 03 at 12 AM EST
Monday, November 30 at 10 PM EST
Monday, November 30 at 11 PM EST
Tuesday, December 01 at 2 AM EST
MonsterQuest: Killer Chimps in America Wednesday, December 02 at 8 PM EST
Killer Chimps in America. Chimpanzees are known to us as amusing circus attractions and are even popular as pets, but when they attack the results are frightening and horrific. Just as disturbing, across the U.S., witness reports suggest that
MonsterQuest: Killer Chimps in America Thursday, December 03 at 12 AM EST
Killer Chimps in America. Chimpanzees are known to us as amusing circus attractions and are even popular as pets, but when they attack the results are frightening and horrific. Just as disturbing, across the U.S., witness reports suggest that
Pawn Stars: 16 - Pawn Stars Monday, November 30 at 10 PM EST
16 - Pawn Stars. It's one of the oldest forms of banking, and until the 1950's, it was the leading form of consumer credit in the U.S. Now, the fascinating world and history of the pawn shop is revealed in this series that centers on the only
Pawn Stars: 16 - Pawn Stars Monday, November 30 at 11 PM EST
16 - Pawn Stars. It's one of the oldest forms of banking, and until the 1950's, it was the leading form of consumer credit in the U.S. Now, the fascinating world and history of the pawn shop is revealed in this series that centers on the only
Pawn Stars: 16 - Pawn Stars Tuesday, December 01 at 2 AM EST
16 - Pawn Stars. It's one of the oldest forms of banking, and until the 1950's, it was the leading form of consumer credit in the U.S. Now, the fascinating world and history of the pawn shop is revealed in this series that centers on the only
ENCYCLOPEDIA:
OLBERS, Heinrich Wilhelm Matthäus
OLBERS, Heinrich Wilhelm Matthäus. (1758– 1840), German physician and astronomer, born in Abergen (now part of Bremen). Olbers . . .
Kaiser Wilhelm II Moves Germany Towards War
Video
0:29 min
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This Day in History: 11/08/1895 - X-rays discovered
Video
1:00 min
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This Day in History: 11/15/1867 - First Stock Ticker Debuts
Video
0:58 min
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This Day in History: 07/26/1775 - U.S. Postal System created
Video
1:00 min
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Charlie Chaplin Leaves U.S. Under Pressure
Video
0:39 min
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Kaiser Wilhelm II Moves Germany Towards War
0:29 min
Kaiser Wilhelm II, (1859-1941), was Germany's last Kaiser. He became the Kaiser of Germany following the death of his father in 1888. During the World War I, he held the post Commander in Chief of the German army. Courtesy of the National Archives
Kaiser Wilhelm II, (1859-1941), was Germany's last Kaiser. He became the Kaiser of Germany following the death of his father in 1888. During the World War I, he held the post Commander in Chief of the German army. Courtesy of the National Archives
This Day in History: 11/08/1895 - X-rays discovered
1:00 min
Physicist Wilhelm Conrad Rontgen becomes the first person to observe X-rays, a significant scientific advancement that would ultimately benefit a variety of fields, most of all medicine, by making the invisible visible.
Physicist Wilhelm Conrad Rontgen becomes the first person to observe X-rays, a significant scientific advancement that would ultimately benefit a variety of fields, most of all medicine, by making the invisible visible.
This Day in History: 11/15/1867 - First Stock Ticker Debuts
0:58 min
The advent of the ticker ultimately revolutionized the stock market by making up-to-the-minute prices available to investors around the country.
The advent of the ticker ultimately revolutionized the stock market by making up-to-the-minute prices available to investors around the country.
This Day in History: 07/26/1775 - U.S. Postal System created
1:00 min
On this day in 1775, the U.S. postal system is established by the Second Continental Congress, with Benjamin Franklin as its first postmaster general.
On this day in 1775, the U.S. postal system is established by the Second Continental Congress, with Benjamin Franklin as its first postmaster general.
Charlie Chaplin Leaves U.S. Under Pressure
0:39 min
In this news report from September 21, 1952 we learn about Charlie Chaplin's departure from the US after he is believed to be a supporter of communism. During this time the US was in the middle of the Red Scare.
In this news report from September 21, 1952 we learn about Charlie Chaplin's departure from the US after he is believed to be a supporter of communism. During this time the US was in the middle of the Red Scare.
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