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Wednesday, May 31, 2006
Corn Flakes Invented This Day
In 1884, a patent for "flaked cereal" was applied for by Dr. John Harvey Kellogg. He was trying to improve the vegetarian diet of his hospital patients, by searching for a digestible bread-substitute by the process of boiling wheat. Kellogg accidentally left a pot of boiled wheat to stand and become tempered. When it was put through a rolling process, each grain of wheat emerged as a large, thin flake. When the flakes were baked, they became crisp and light, creating an easy to prepare breakfast when milk was added. Link Image Link
Tuesday, May 30, 2006
Vampirella: Aurora Monster Scenes
Back in the early 70's Aurora produced a series of "Monster Scenes" model kits based around a Vampirella figure. These are the instructions for assembling one of the pieces featuring the art of either Neal Adams or his Continuity Studios. Note the ridiculous lengths the accompanying comic had to stretch to try to make it somehow 'wholesome' for kids (or at least the parents buying these things).
Monday, May 29, 2006
Bending Starlight Supports Relativity
On this day in 1919, a solar eclipse permitted observation of the bending of starlight passing through the sun's gravitational field, as predicted by Albert Einstein's theory of relativity. Expeditions from the Royal Astronomical Society traveled to Brazil and the west coast of Africa to make measurements of the position of stars visible close to the sun during a solar eclipse. These observations showed that, indeed, the light of stars was bent as it passed through the gravitational field of the sun. This was a key prediction of Einstein's theory that gravity affected energy as in addition to the familiar effect on matter. Link
The Drake Equation
Born this day: Frank Donald Drake, an American astronomer who formulated the Drake Equation (1961) to estimate the number of technological civilizations that may exist in our galaxy. Drake led the first search, the two-month Project Ozma, to listen for patterns in radio waves with a complex, ordered pattern that might be assumed to represent messages from some extraterrestrial intelligence.
Carl Sagan and Drake designed the plaques on Pioneer 10 and Pioneer 11 for the purpose of greeting and informing any extraterrestrial life that might find the vessels after they left the solar system. Link
Carl Sagan and Drake designed the plaques on Pioneer 10 and Pioneer 11 for the purpose of greeting and informing any extraterrestrial life that might find the vessels after they left the solar system. Link
Fireball XL5 Blasts Off!
Sunday, May 28, 2006
Alex Toth: 1928-2006
The Cartoon Brew reports that Alex Toth passed away yesterday. This is just a quick tip of the hat to one of the masters of comic art.
5th Dimensional 'Braneworld'
Scientists have developed a mathematical framework they say will enable astronomers to test a new five-dimensional theory of gravity that competes with Einstein's General Theory of Relativity.
Charles R. Keeton of Rutgers and Arlie O. Petters of Duke base their work on a recent theory called the type II Randall-Sundrum braneworld gravity model. The theory holds that the visible universe is a membrane (hence "braneworld") embedded within a larger universe, much like a strand of filmy seaweed floating in the ocean. The "braneworld universe" has five dimensions -- four spatial dimensions plus time -- compared with the four dimensions -- three spatial, plus time -- laid out in the General Theory of Relativity.
The braneworld theory predicts that relatively small "black holes" created in the early universe have survived to the present. The black holes, with mass similar to a tiny asteroid, would be part of the "dark matter" in the universe. As the name suggests, dark matter does not emit or reflect light, but does exert a gravitational force.
"A good place to look for gravitational lensing by braneworld black holes is in bursts of gamma rays coming to Earth," Keeton said. These gamma-ray bursts are thought to be produced by enormous explosions throughout the universe. Such bursts from outer space were discovered inadvertently by the U.S. Air Force in the 1960s.
"If the braneworld theory is correct," they said, "there should be many, many more braneworld black holes throughout the universe, each carrying the signature of a fourth dimension of space."
Charles R. Keeton of Rutgers and Arlie O. Petters of Duke base their work on a recent theory called the type II Randall-Sundrum braneworld gravity model. The theory holds that the visible universe is a membrane (hence "braneworld") embedded within a larger universe, much like a strand of filmy seaweed floating in the ocean. The "braneworld universe" has five dimensions -- four spatial dimensions plus time -- compared with the four dimensions -- three spatial, plus time -- laid out in the General Theory of Relativity.
The braneworld theory predicts that relatively small "black holes" created in the early universe have survived to the present. The black holes, with mass similar to a tiny asteroid, would be part of the "dark matter" in the universe. As the name suggests, dark matter does not emit or reflect light, but does exert a gravitational force.
"A good place to look for gravitational lensing by braneworld black holes is in bursts of gamma rays coming to Earth," Keeton said. These gamma-ray bursts are thought to be produced by enormous explosions throughout the universe. Such bursts from outer space were discovered inadvertently by the U.S. Air Force in the 1960s.
"If the braneworld theory is correct," they said, "there should be many, many more braneworld black holes throughout the universe, each carrying the signature of a fourth dimension of space."
Robot hand Controlled By Thought
A robotic hand controlled by the power of thought alone has been demonstrated by researchers in Japan.
The robotic hand mimics the movements of a person's real hand, based on real-time functional magnetic resonance imaging (fMRI) of their brain activity. It marks another landmark in the advance towards prosthetics and computers that can be operating by thought alone.
The system was developed by Yukiyasu Kamitani and colleagues from the ATR Computational Neuroscience Laboratories in Kyoto, and researchers from the Honda Research Institute in Saitama.
Subjects lay inside an MRI scanner and were asked to make "rock, paper, scissor" shapes with their right hand. As they did this, the MRI scanner recorded brain activity during the formation of each shape and fed this data to a connected computer. After a short training period, the computer was able to recognise the brain activity associated with each shape and command the robotic appendage do the same.
The robotic hand mimics the movements of a person's real hand, based on real-time functional magnetic resonance imaging (fMRI) of their brain activity. It marks another landmark in the advance towards prosthetics and computers that can be operating by thought alone.
The system was developed by Yukiyasu Kamitani and colleagues from the ATR Computational Neuroscience Laboratories in Kyoto, and researchers from the Honda Research Institute in Saitama.
Subjects lay inside an MRI scanner and were asked to make "rock, paper, scissor" shapes with their right hand. As they did this, the MRI scanner recorded brain activity during the formation of each shape and fed this data to a connected computer. After a short training period, the computer was able to recognise the brain activity associated with each shape and command the robotic appendage do the same.
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