The EPR paradox is an early and strong criticism of quantum mechanics. Albert Einstein and his co-workers, Boris Podolsky and Nathan Rosen, said that Niels Bohr, Werner Heisenberg, and the other scientists in Copenhagen were wrong about uncertainty. Heisenberg claimed that you could never know, for any one time, both the position and momentum (or velocity, or trajectory) of any atom-sized or smaller particle. The idea was that the two could not be measured at the same time, and that as soon as one was measured a change would occur and you would not get the same answer for the other one that you would have gotten if you had measured it first. Einstein and his group said that Heisenberg should think again. Suppose you had two very small particles. You measured the weight of each of them and then stuck them together. You gave them a little push. Then something broke them apart. They should have both positions and velocities that were related. So if you measured the position of one of them, then even if you assumed that Heisenberg was right and you could not involve messing up its velocity in the process of measuring it, surely that did not mean that it never had a definite velocity. For proof, Einstein said that you could next measure the velocity of the second particle and, since everything was mathematically related, you would then know the velocity of the first particle.
There was one way that Heisenberg could be right, a reason that Einstein thought was nonsense: What if measuring the position of the first particle would mess up the velocity of the second particle. That would be like magic. How could anybody explain such an influence? Suppose that the two particles were moving away very fast and a long time had gone by. If something that happened to the first particle somehow influenced the second particle, its influence would have to travel faster than the speed of light, which is impossible. Physicists like Erwin Schrödinger suggested that maybe the relationship in position and velocity would just gradually go away somehow. Schrödinger called the connection between the two particles (and anything like it that happened to other things) "entanglement."
"Spooky action at a distance," as Einstein called it, is one way of understanding this paradox. Einstein had no way of knowing that future experiments would show that entanglement exists. In the end, John Stewart Bell showed mathematically that there is no way that hidden variables could account for experimental results that show entanglement.
Soakage
A soakage, or soak, is a source of water in the deserts of Australia. It is called a soak because the water generally soaks into the sandy ground, and is stored below. They sometimes form part of an ephemeral river or drainage system. Soakages were traditionally important sources of water for Aboriginal people in the desert, because they are the most reliable sources in times of drought. Knowing the exact location of each soakage was very valuable knowledge. In the 19th century, the explorers Peter Warburton and David Carnegie wrote that they had chased down Aboriginal people with camels and captured and chained them to force them to reveal their secret sources of water.
America's Next Top Model, Cycle 17
America's Next Top Model: All-Stars is the seventeenth cycle of "America's Next Top Model". This cycle features contestants from previous cycles who didn't win. They compete for a grand prize. The winner was 30-year-old Lisa D'Amato.
The prizes for this cycle were:
This cycle had 14 previous contestants:
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Wuhan
Wuhan () is the capital of Hubei province, People's Republic of China, and is the city with most people in Central China. It is at the east of the Jianghan Plain, where the Yangtze and Han rivers meet. Joining three nearby cities, Wuchang, Hankou, and Hanyang, Wuhan is a center of transportation, with many railways, roads and expressways passing through. Because of its important role in transportation, Wuhan was sometimes called the "Chicago of China." It is also recognized as the political, economic, financial, cultural, and educational center of central China.
The city of Wuhan, first called so in 1927, has 10,020,000 people (as at 2011). In the 1920s, Wuhan was the national capital of a Kuomintang (KMT) government led by Wang Jingwei when he was against Chiang Kai-shek, and it was also the capital in 1937.
In December 2019, the COVID-19 pandemic started in Wuhan.
Wuhan University
Wuhan University () is a university in Wuhan, China. It started teaching in 1893. The buildings and the cherry blossom in the university are very beautiful and well known. People think it is one of the most beautiful universities in China.
Mantarur
Mantarur is a hilly area in the southwest of the Northern Territory, Australia. It forms the southeastern end of the Olia Chain of mountains. This outcrop includes Butler's Dome (; 1102 metres above sea level). The granite escarpment called Foster's Cliff is nearby to the east. Mantarur is located about southwest of Kata Tjuṯa. It is on Pitjantjatjara land, part of the Petermann Aboriginal Land Trust. A family outstation was established here in the 1980s, at a rockhole in the western slopes. It has since been abandoned.
Frank Rees George led a prospecting expedition through the area between 1905 and 1906. George gave names to several of the landforms, including Butler's Dome, which is believed to have been named after Richard Butler, who was a minister of South Australia. He named Foster's Cliff after R. W. Foster, the South Australian Commissioner of Public Works. The expedition found traces of gold at Foster's Cliff, but not enough of it to warrant mining. It was the only place in the Petermann Ranges found to contain any gold.
Maria Tallchief
Elizabeth Marie Tall Chief (stage name Maria Tallchief; January 24, 1925 - April 11, 2013) was the first person of Native American descent to become prima ballerina for a major company. She is especially well known for her time with the New York City Ballet, where she performed between 1948 and 1965.
Maria Tallchief grew up on an Indian reservation in Oklahoma. Her father was Osage. Her mother was Scottish-Irish. She started doing ballet at age four. By the time she was eight, she had already gone through all teachers at her level in Oklahoma, so her family moved to Beverly Hills. She was trained by Bronislava Nijinska, David Lichine, and George Balanchine. Balanchine became her husband in 1942. She starred in many of her husband's ballets including "The Firebird". After she starred in "The Firebird", she got international recognition. She was an artistic director of the Chicago City Ballet from 1980 to 1987. She was recognized in the National Women's Hall of Fame.
Maria Tallchief died due to complications from surgery to fix a broken hip at the Northwestern Memorial Hospital in Chicago at age 88.
Olia chain
The Olia Chain (or The Olias) is a mountain range in the southwest of the Northern Territory, Australia. It forms the southeastern end of the Petermann Ranges, and connects these ranges with the Musgrave Ranges further south. The Olia Chain consists of scattered outcrops of rocky hills, separated and surrounded by sandy plains. It extends from Katamala Cone (828 m) at its northern end to Mantarur (including Butler's Dome, 1102 m) in the south. The centre of the chain is dominated by Stevenson Peak (1025 m). A few kilometres northeast of this peak is a Pitjantjatjara outstation, called Pirrulpakalarintja.
The Olia Chain mostly consist of flat-topped ridges composed of sandstone, slate, quartzite, and limestone rock beds.
Star Fox Adventures