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Harold Agnew, key figure in U.S. nuclear history, dies at 92

SOLANO BEACH, Calif., Oct. 2 (UPI) -- Harold Agnew, a key figure of the nuclear age who helped design the atomic bomb as a member of the Manhattan Project, has died, his family said. He was 92.

Woman allegedly kept disabled cousin chained to bed in basement

PHILADELPHIA, Aug. 19 (UPI) -- Police in Philadelphia said they arrested a 46-year-old woman accused of keeping her 36-year-old disabled cousin chained to a bed in the basement.
Google doodle celebrates physicist Schrodinger and his 'cat in a box'

Google doodle celebrates physicist Schrodinger and his 'cat in a box'

MOUNTAIN VIEW, Calif., Aug. 12 (UPI) -- Monday's Google doodle is a birth date homage to Austrian physicist Erwin Schrodinger and the subject of his famous thought experiment -- a cat in a box.
The taller a postmenopausal woman, the greater risk of cancer

The taller a postmenopausal woman, the greater risk of cancer

NEW YORK, July 28 (UPI) -- The taller a postmenopausal woman, the greater her risk for developing cancers of the breast, colon, kidney, ovary, rectum and thyroid, U.S. researchers say.

The almanac

UPI Almanac for Sunday, June 30, 2013.
By United Press International
NYU denies it's forcing out dissident Chen over criticism of China

NYU denies it's forcing out dissident Chen over criticism of China

NEW YORK, June 17 (UPI) -- New York University denies accusations by Chinese dissident Chen Guangcheng that he is being forced to leave over concerns about his activism.

Chinese activist Chen Guangcheng leaving NYU

NEW YORK, June 14 (UPI) -- Critics say New York University decided to end its relationship with Chinese activist Chen Guangcheng because of fear of the Chinese government.
Heading a soccer ball over many years can cause brain injury

Heading a soccer ball over many years can cause brain injury

NEW YORK, June 11 (UPI) -- Soccer players head the ball six to 12 times a game, and the cumulative damage from this can cause brain injury resembling concussion, U.S. researchers say.
Spacecraft full of supplies on way to International Space Station

Spacecraft full of supplies on way to International Space Station

PARIS, June 6 (UPI) -- The European Space Agency says a giant robotic freighter launched on a trip to the International Space Station is the heaviest it has ever put into orbit.
IRS officials tied to conference spending put on leave

IRS officials tied to conference spending put on leave

WASHINGTON, June 5 (UPI) -- Acting Internal Revenue Service head Danny Werfel said Wednesday two top officials are on administrative leave for ethics violations at a California conference.
Reid: 'House Republicans have truly lost their minds'

Reid: 'House Republicans have truly lost their minds'

WASHINGTON, May 15 (UPI) -- U.S. Senate Majority Leader Harry Reid, D-Nev., said Wednesday "House Republicans have truly lost their minds" under a popular definition of insanity.
Billions of Earth-like worlds could exist

Billions of Earth-like worlds could exist

AUCKLAND, New Zealand, April 3 (UPI) -- New Zealand scientists who are proposing a new method for finding Earth-like planets, say the number will be "in the order of 100 billion."

The almanac

UPI Almanac for Thursday, March 14, 2013.
By United Press International

UPI NewsTrack Science and Technology News

Scientists measure giant black hole's spin ... Mystery of ancient fish's teeth solved ... Brain-boosting video games urged ... Food-testing circuit could eliminate waste ... Science and Technology news from UPI.
Scientists measure giant black hole's spin

Scientists measure giant black hole's spin

LIVERMORE, Calif., Feb. 27 (UPI) -- An international team, including U.S. researchers, reports it has definitively measured the spin rate of a super-massive black hole for the first time.
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Albert Einstein
Albert Einstein, in a 1943 photo, probably taken in Princeton, NJ. (UPI Photo/Files)
Wiki

Albert Einstein ( /ˈælbərt ˈaɪnstaɪn/; German:  ( listen); 14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics, and one of the most prolific intellects in human history. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect". The latter was pivotal in establishing quantum theory within physics.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led to the development of his special theory of relativity. He realized, however, that the principle of relativity could also be extended to gravitational fields, and with his subsequent theory of gravitation in 1916, he published a paper on the general theory of relativity. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the structure of the universe as a whole.

He was visiting the United States when Adolf Hitler came to power in 1933, and did not go back to Germany, where he had been a professor at the Berlin Academy of Sciences. He settled in the U.S., becoming a citizen in 1940. On the eve of World War II, he helped alert President Franklin D. Roosevelt that Germany might be developing an atomic weapon, and recommended that the U.S. begin similar research; this eventually led to what would become the Manhattan Project. Einstein was in support of defending the Allied forces, but largely denounced using the new discovery of nuclear fission as a weapon. Later, together with Bertrand Russell, Einstein signed the Russell–Einstein Manifesto, which highlighted the danger of nuclear weapons. Einstein taught physics at the Institute for Advanced Study at Princeton, New Jersey, until his death in 1955.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Albert Einstein."
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