On June 3rd, NASA’s SWIFT X-ray telescope detected a massive gamma-ray burst, GRB 130603B.
The burst was caused by the collision of two neutron stars 3.9 billion light years from Earth, and lasted only two-tenths of a second. However the infrared glow left behind by the event suggested the formation of a large amount of heavy metals.
It is thought that most of the heavier elements in the universe were produced during supernova explosions. However, gamma-ray bursts are so energetic, they can produce metals such as gold.
The Harvard-Smithsonian Center for Astrophysics has been studying GRB 130603B and believes that it may be evidence that most of the gold in the universe was produced by the collision of neutron stars. Their study is available online.
(Pictured is a visible-light image of neutron star RX J1856.5-3754, the closest neutron star to Earth at a distance of 400 light years. It has a radius of 14 km and a surface temperature of 434,000 degrees Celsius.)
It’s not the heat that’ll get you; it’s the humidity.
Illustrations of early diving apparatus from Abraham Rees Cyclopedia, 1816.
The suit pictured in the bottom-left corner is a very early diving suit made by Karl Heinrich Klingert around 1797. The diving bell shown in the top-left corner was created by Dr. Edmond Halley of comet fame, around 1680.
"Made by hand."
The suits for the Apollo missions were all sewn entirely by hand, without the use of traditional sewing tools such as pins and other temporary fasteners for fear that one would be forgotten and left in the suit.
Darrell Romick’s Manned Earth-Satellite Terminal Evolving from Earth-to-Orbit Ferry Rockets (METEOR) space-station concept, ~1956. Maneuver Carefully…
"The Distinguished Men of Science of Great Britain Living in the Years 1807-8", published 1862.
"Among those present are Henry Cavendish (1731-1810), discoverer of hydrogen and the decomposition of water; John Dalton (1766-1844), discoverer of atomic theory; Humphry Davy (1778-1844), discoverer of sodium, potassium, barium, and magnesium; William Herschel (1738-1822), discoverer of Uranus; Edward Jenner (1749-1823), creator of the smallpox vaccination; Count Rumford (1753-1814), the American science teacher named Benjamin Thompson, who founded the Royal Institution; and James Watt (1738-1819), inventor of the steam engine."
In a press conference this morning, the University of Leicester stated that DNA testing performed on a tooth extracted from skeletal remains found beneath a council car park in 2012 has confirmed that scientists have indeed found the five hundred year old body of King Richard III, killed at the battle of Bosworth Field on the 22 of August, 1485, ending the War of the Roses. He was the last of the Plantagenet dynasty, and the last English king to die in battle.
Richard, immortalized by Shakespeare, had idiopathic adolescent onset scoliosis resulting in a severe curvature of his spine. Without this condition, Richard would have stood approximately 5’ 8” tall; however his height would have been reduced quite a bit due to the curvature. No evidence of a withered arm was found.
There were a total of ten wounds found on the body, including two on the skull, one of which would certainly have been fatal. No clothing, personal objects, or remnants of a shroud were found in the grave; Richard’s hands may have been tied in front of him. The body is to be reinterred in Leicester Cathedral.
The University of Leicester has a website containing a great deal of further information and detail about the discovery.
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