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Charles Lester Leonard (1861–1913) was an American physician and X-ray pioneer. Leonard was the first radiologist at the Hospital of the University of Pennsylvania, founded the Philadelphia Roentgen Ray Society, and served as president of the American Roentgen Ray Society in 1904–1905. He was known as one of the foremost experts in ...
An X-ray microscope uses electromagnetic radiation in the soft X-ray band to produce images of very small objects. Unlike visible light, X-rays do not reflect or refract easily, and they are invisible to the human eye. Therefore, the basic process of an X-ray microscope is to expose film or use a charge-coupled device (CCD) detector to detect X ...
The National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory (BNL) in Upton, New York is a national user research facility funded primarily by the U.S. Department of Energy 's (DOE) Office of Science. NSLS-II is a synchrotron light source, designed to produce X-rays 10,000 times brighter than BNL's original light source ...
The Sanford Underground Research Facility (SURF), or Sanford Lab, is an underground laboratory in Lead, South Dakota. The deepest underground laboratory in the United States, it houses multiple experiments in areas such as dark matter and neutrino physics research, biology, geology and engineering. There are currently 28 active research ...
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Online shoppers spent $942 million to make Free Shipping Day the third highest spending day of the 2010 holiday season, [3] ultimately boosting online sales 61 percent from 2009. [4] In 2011, Free Shipping Day became a billion-dollar shopping holiday with $1.072 billion in sales, [ 5 ] followed by $1.01 billion during Free Shipping Day 2012.
X-ray radiography is similar to gamma-ray radiography but instead of using a radioactive source, it uses a high-energy bremsstrahlung spectrum with energy in the 5–10 MeV range [8] [9] created by a linear particle accelerator (LINAC). Such X-ray systems can penetrate up to 30–40 cm of steel in vehicles moving with velocities up to 13 km/h.
Curiosity is a car-sized Mars rover exploring Gale crater and Mount Sharp on Mars as part of NASA's Mars Science Laboratory (MSL) mission. [2] Curiosity was launched from Cape Canaveral (CCAFS) on November 26, 2011, at 15:02:00 UTC and landed on Aeolis Palus inside Gale crater on Mars on August 6, 2012, 05:17:57 UTC.