Showing posts with label science. Show all posts
Showing posts with label science. Show all posts
Thursday, June 21, 2007
Thursday, June 14, 2007
Bones could allow data swaps via handshake
Bones could allow data swaps via handshake
"The researchers suggest applications such as a vibrator in a wrist receiver/transmitter that could tell an implant placed near a bone to release a drug dose, with the implant then sending back data from its sensors. Similarly, tooth clacks or finger clicks could be interpreted by a receiver to activate, say, functions in a phone.
For Liebschner, the great benefit is security. "All data transfer is contained inside the human body, and it can only be retrieved through direct physical contact," he says. People could even swap information between devices via a firm handshake, Zhong suggests."
"The researchers suggest applications such as a vibrator in a wrist receiver/transmitter that could tell an implant placed near a bone to release a drug dose, with the implant then sending back data from its sensors. Similarly, tooth clacks or finger clicks could be interpreted by a receiver to activate, say, functions in a phone.
For Liebschner, the great benefit is security. "All data transfer is contained inside the human body, and it can only be retrieved through direct physical contact," he says. People could even swap information between devices via a firm handshake, Zhong suggests."
Tuesday, June 12, 2007
Welcome to Mars express: only a three hour trip
Welcome to Mars express: only a three hour trip
"The theoretical engine works by creating an intense magnetic field that, according to ideas first developed by the late scientist Burkhard Heim in the 1950s, would produce a gravitational field and result in thrust for a spacecraft.
Also, if a large enough magnetic field was created, the craft would slip into a different dimension, where the speed of light is faster, allowing incredible speeds to be reached. Switching off the magnetic field would result in the engine reappearing in our current dimension."
"The theoretical engine works by creating an intense magnetic field that, according to ideas first developed by the late scientist Burkhard Heim in the 1950s, would produce a gravitational field and result in thrust for a spacecraft.
Also, if a large enough magnetic field was created, the craft would slip into a different dimension, where the speed of light is faster, allowing incredible speeds to be reached. Switching off the magnetic field would result in the engine reappearing in our current dimension."
Monday, June 11, 2007
Mysterious signal hints at subsurface ocean on Titan
Mysterious signal hints at subsurface ocean on Titan
"Titan's crust is thought to be made largely of water ice, kept rock hard by the prevailing surface temperature of -178° Celsius. But theoretical models of the moon's interior suggest that ammonia-rich water deep beneath the surface could stay liquid, perhaps forming a global ocean."
"Titan's crust is thought to be made largely of water ice, kept rock hard by the prevailing surface temperature of -178° Celsius. But theoretical models of the moon's interior suggest that ammonia-rich water deep beneath the surface could stay liquid, perhaps forming a global ocean."
Sunday, June 10, 2007
A Step Toward a Living, Learning Memory Chip
A Step Toward a Living, Learning Memory Chip: Scientific American
"The results, Ben-Jacob says, set the stage for the creation of a neuromemory chip that could be paired with computer hardware to create cyborglike machines capable of such tasks as detecting dangerous toxins in the air, allowing the blind to see or helping someone who is paralyzed regain some if not all muscle use."
"The results, Ben-Jacob says, set the stage for the creation of a neuromemory chip that could be paired with computer hardware to create cyborglike machines capable of such tasks as detecting dangerous toxins in the air, allowing the blind to see or helping someone who is paralyzed regain some if not all muscle use."
Pentagon Confirms It Sought To Build A 'Gay Bomb'
Gay Bomb
"A Berkeley watchdog organization that tracks military spending said it uncovered a strange U.S. military proposal to create a hormone bomb that could purportedly turn enemy soldiers into homosexuals and make them more interested in sex than fighting."
"A Berkeley watchdog organization that tracks military spending said it uncovered a strange U.S. military proposal to create a hormone bomb that could purportedly turn enemy soldiers into homosexuals and make them more interested in sex than fighting."
Friday, June 08, 2007
Research deciphers 'déjà-vu' brain mechanics
Research deciphers 'déjà-vu' brain mechanics - MIT News Office
"Tonegawa, a Howard Hughes Medical Institute investigator and a frequent world traveler, described his own occasional experience of finding the airport in a new city uncannily familiar. This occurs, he said, because of the similarity of the modules--gates, chairs, ticket counters--that comprise airports worldwide. It is only by seeking out unique cues that the specific airport can be identified, he said. "In this study, we have revealed that learning in the dentate gyrus is crucial in rapidly recognizing and amplifying the small differences that make each place unique," Tonegawa said."
"Tonegawa, a Howard Hughes Medical Institute investigator and a frequent world traveler, described his own occasional experience of finding the airport in a new city uncannily familiar. This occurs, he said, because of the similarity of the modules--gates, chairs, ticket counters--that comprise airports worldwide. It is only by seeking out unique cues that the specific airport can be identified, he said. "In this study, we have revealed that learning in the dentate gyrus is crucial in rapidly recognizing and amplifying the small differences that make each place unique," Tonegawa said."
Wednesday, May 23, 2007
Strange alien world made of 'hot ice'
Strange alien world made of 'hot ice' - space - 16 May 2007 - New Scientist Space
"Although the parent star is much cooler than the Sun, the planet orbits 13 times closer to the star than Mercury's orbit around the Sun. That means the surface must be a blazing hot 300° C or more, keeping water in its atmosphere in vapour form.
But the high pressures in the planet's interior would compress the water so much that it would stay solid even at hundreds of degrees Celsius – the expected temperatures inside the planet. There are a variety of exotic 'hot ice' states possible in such conditions, with names like 'Ice VII' and 'Ice X'."
"Although the parent star is much cooler than the Sun, the planet orbits 13 times closer to the star than Mercury's orbit around the Sun. That means the surface must be a blazing hot 300° C or more, keeping water in its atmosphere in vapour form.
But the high pressures in the planet's interior would compress the water so much that it would stay solid even at hundreds of degrees Celsius – the expected temperatures inside the planet. There are a variety of exotic 'hot ice' states possible in such conditions, with names like 'Ice VII' and 'Ice X'."
Tuesday, May 01, 2007
Goodbye Bees (From Harper's Magazine)
Researchers investigating the collapse of honeybee colonies in Europe and the Americas identified several possible reasons for the catastrophe: poor diet; radiation from mobile phones that disturbs bees' sense of navigation so they cannot fly home; increased solar radiation due to the thinning of the ozone layer; bee AIDS; stress from cross-country travel in trucks; falling queen fertility; the microsporidian fungus Nosema ceranae; or imidacloprid, a pesticide sold under the brand name Gaucho and banned by France in 1999 for spreading “mad bee disease.” Investors were advised to put their money in gold and corn futures to profit off the recession that may result from the disruption of the food chain caused by the vanishing bees. Grapes, which self-pollinate, and olives, which are pollinated by the wind, will not be affected by the bees' disappearance; Christians pointed out that the Book of Revelation predicts that a famine sparing grapes and olives will precede the apocalypse.
Friday, March 30, 2007
Scientists discover 'shadow person'
Scientists discover 'shadow person' | COSMOS magazine
"Ever feel as though you're being followed? As if someone is behind you, shadowing your every move? It might be your ‘shadow person', created by unusual activity in a specific brain region, a new study shows.
The paper, published in the British journal Nature, describes the case of a 22-year-old woman with no history of psychiatric problems who was being evaluated for treatment of epilepsy. When a region of her brain called the left temporoparietal junction was electrically stimulated, the woman described encounters with a ‘shadow person' who mimicked her bodily movements.
"Electrical stimulation repeatedly produced a feeling of the presence of another person in her extra-personal space," said Olaf Blanke, co-author of the study conducted by a team of researchers from University Hospital in Geneva, Switzerland.
When the patient was lying down, stimulation of this brain region caused her to feel that someone was behind her. She described the person as young, of indeterminate sex, "a shadow who did not speak or move, and whose position beneath her back was identical to her own", according to the researchers.
When the patient sat up, leaned forward and clasped her knees, she felt that the figure was also sitting, embracing her in its arms - a feeling she described as "unpleasant"."
"Ever feel as though you're being followed? As if someone is behind you, shadowing your every move? It might be your ‘shadow person', created by unusual activity in a specific brain region, a new study shows.
The paper, published in the British journal Nature, describes the case of a 22-year-old woman with no history of psychiatric problems who was being evaluated for treatment of epilepsy. When a region of her brain called the left temporoparietal junction was electrically stimulated, the woman described encounters with a ‘shadow person' who mimicked her bodily movements.
"Electrical stimulation repeatedly produced a feeling of the presence of another person in her extra-personal space," said Olaf Blanke, co-author of the study conducted by a team of researchers from University Hospital in Geneva, Switzerland.
When the patient was lying down, stimulation of this brain region caused her to feel that someone was behind her. She described the person as young, of indeterminate sex, "a shadow who did not speak or move, and whose position beneath her back was identical to her own", according to the researchers.
When the patient sat up, leaned forward and clasped her knees, she felt that the figure was also sitting, embracing her in its arms - a feeling she described as "unpleasant"."
Wednesday, March 28, 2007
Blimps to swim through the air like fish
Blimps to swim through the air like fish - space - 23 March 2007 - New Scientist Space
"Blimps steered by artificial muscles may one day swim through the air like fish, suggest recent flight tests. The blimps would be much quieter than those steered by traditional blimp propellers, making them ideal for observing wildlife."
"Blimps steered by artificial muscles may one day swim through the air like fish, suggest recent flight tests. The blimps would be much quieter than those steered by traditional blimp propellers, making them ideal for observing wildlife."
Monday, March 12, 2007
Puppet Masters 2
Mind-Control Microbe
"When he looked at the clinical records of more than 1,800 babies born from 1996 to 2004, he noted a distinct trend: The normal sex ratio is 104 boys born for every 100 girls, but in women with high levels of antibodies against the parasite, the ratio was 260 boys for every 100 girls. Exactly how the parasite might be tipping the odds in favor of males isn't understood, but Flegr points out that it is known to suppress the immune system of its hosts, and because the maternal immune system sometimes attacks male fetuses in very early pregnancy, the parasite's ability to inhibit the immune response might protect future boys as well as itself."
"When he looked at the clinical records of more than 1,800 babies born from 1996 to 2004, he noted a distinct trend: The normal sex ratio is 104 boys born for every 100 girls, but in women with high levels of antibodies against the parasite, the ratio was 260 boys for every 100 girls. Exactly how the parasite might be tipping the odds in favor of males isn't understood, but Flegr points out that it is known to suppress the immune system of its hosts, and because the maternal immune system sometimes attacks male fetuses in very early pregnancy, the parasite's ability to inhibit the immune response might protect future boys as well as itself."
Tuesday, February 27, 2007
Scientists assess DNA Hair sample from Human being apparently not from Earth
The Scientists assess DNA Hair sample from Human being apparently not from Earth
"Who then was the being whose blond hair inexplicably became wrapped around Peter Khoury's penis?"
"Who then was the being whose blond hair inexplicably became wrapped around Peter Khoury's penis?"
Friday, February 23, 2007
Could we have hitched a ride on UFOs? | Technology | Guardian Unlimited Technology
Could we have hitched a ride on UFOs? | Technology | Guardian Unlimited Technology
"The documents show that the internal lobbying effort for a UFO study began in 1993. In a briefing note from the secret UFO investigation branch of Defence Intelligence - called DI55 - an unnamed author wrote: "The national security implications are considerable. We have many reports of strange objects in the skies and we have never investigated them."
"The documents show that the internal lobbying effort for a UFO study began in 1993. In a briefing note from the secret UFO investigation branch of Defence Intelligence - called DI55 - an unnamed author wrote: "The national security implications are considerable. We have many reports of strange objects in the skies and we have never investigated them."
Tuesday, February 13, 2007
Faces of War
Faces of War
"While pioneering work in skin grafting had been done in Germany and the Soviet Union, it was Gillies who refined and then mass-produced critical techniques, many of which are still important to modern plastic surgery: on a single day in early July 1916, following the first engagement of the Battle of the Somme—a day for which the London Times casualty list covered not columns, but pages—Gillies and his colleagues were sent some 2,000 patients. The clinically honest before-and-after photographs published by Gillies shortly after the war in his landmark Plastic Surgery of the Face reveal how remarkably—at times almost unimaginably—successful he and his team could be; but the gallery of seamed and shattered faces, with their brave patchwork of missing parts, also demonstrates the surgeons' limitations. It was for those soldiers—too disfigured to qualify for before-and-after documentation—that the Masks for Facial Disfigurement Department had been established.
"My work begins where the work of the surgeon is completed," said Francis Derwent Wood, the program's founder. Born in England's Lake District in 1871, of an American father and British mother, Wood had been educated in Switzerland and Germany, as well as England. Following his family's return to England, he trained at various art institutes, cultivating a talent for sculpture he had exhibited as a youth. Too old for active duty when war broke out, he had enlisted, at age 44, as a private in the Royal Army Medical Corps. Upon being assigned as an orderly to the 3rd London General Hospital, he at first performed the usual "errand-boy-housewife" chores. Eventually, however, he took upon himself the task of devising sophisticated splints for patients, and the realization that his abilities as an artist could be medically useful inspired him to construct masks for the irreparably facially disfigured. His new metallic masks, lightweight and more permanent than the rubber prosthetics previously issued, were custom designed to bear the prewar portrait of each wearer. Within the surgical and convalescent wards, it was grimly accepted that facial disfigurement was the most traumatic of the multitude of horrific damages the war inflicted. "Always look a man straight in the face," one resolute nun told her nurses. "Remember he's watching your face to see how you're going to react.""
"While pioneering work in skin grafting had been done in Germany and the Soviet Union, it was Gillies who refined and then mass-produced critical techniques, many of which are still important to modern plastic surgery: on a single day in early July 1916, following the first engagement of the Battle of the Somme—a day for which the London Times casualty list covered not columns, but pages—Gillies and his colleagues were sent some 2,000 patients. The clinically honest before-and-after photographs published by Gillies shortly after the war in his landmark Plastic Surgery of the Face reveal how remarkably—at times almost unimaginably—successful he and his team could be; but the gallery of seamed and shattered faces, with their brave patchwork of missing parts, also demonstrates the surgeons' limitations. It was for those soldiers—too disfigured to qualify for before-and-after documentation—that the Masks for Facial Disfigurement Department had been established.
"My work begins where the work of the surgeon is completed," said Francis Derwent Wood, the program's founder. Born in England's Lake District in 1871, of an American father and British mother, Wood had been educated in Switzerland and Germany, as well as England. Following his family's return to England, he trained at various art institutes, cultivating a talent for sculpture he had exhibited as a youth. Too old for active duty when war broke out, he had enlisted, at age 44, as a private in the Royal Army Medical Corps. Upon being assigned as an orderly to the 3rd London General Hospital, he at first performed the usual "errand-boy-housewife" chores. Eventually, however, he took upon himself the task of devising sophisticated splints for patients, and the realization that his abilities as an artist could be medically useful inspired him to construct masks for the irreparably facially disfigured. His new metallic masks, lightweight and more permanent than the rubber prosthetics previously issued, were custom designed to bear the prewar portrait of each wearer. Within the surgical and convalescent wards, it was grimly accepted that facial disfigurement was the most traumatic of the multitude of horrific damages the war inflicted. "Always look a man straight in the face," one resolute nun told her nurses. "Remember he's watching your face to see how you're going to react.""
Satellite could see shadow of extra dimensions
Satellite could see shadow of extra dimensions
A satellite to be launched next year could see signs of extra dimensions in the afterglow of the big bang, a new study says.
Some theories – such as string theory – that attempt to unify all known forces into a single "theory of everything" posit the existence of extra spatial dimensions beyond the three familiar ones.
But string theory has proven stubbornly resistant to experimental tests (although some physicists say it could be tested in the Large Hadron Collider scheduled to open by the end of 2007).
Now, Gary Shiu and Bret Underwood, both physicists at the University of Wisconsin in Madison, US, say the shape of the extra dimensions could leave an imprint in the afterglow of the big bang. This glow, called the cosmic microwave background, reveals the structure of the universe about 370,000 years after the big bang.
A satellite to be launched next year could see signs of extra dimensions in the afterglow of the big bang, a new study says.
Some theories – such as string theory – that attempt to unify all known forces into a single "theory of everything" posit the existence of extra spatial dimensions beyond the three familiar ones.
But string theory has proven stubbornly resistant to experimental tests (although some physicists say it could be tested in the Large Hadron Collider scheduled to open by the end of 2007).
Now, Gary Shiu and Bret Underwood, both physicists at the University of Wisconsin in Madison, US, say the shape of the extra dimensions could leave an imprint in the afterglow of the big bang. This glow, called the cosmic microwave background, reveals the structure of the universe about 370,000 years after the big bang.
Sunday, February 11, 2007
Physicists Unite Light And Matter
Physicists Unite Light And Matter
Physicists have for the first time stopped and extinguished a light pulse in one part of space and then revived it in a completely separate location. They accomplished this feat by completely converting the light pulse into matter that travels between the two locations and is subsequently changed back to light.
Physicists have for the first time stopped and extinguished a light pulse in one part of space and then revived it in a completely separate location. They accomplished this feat by completely converting the light pulse into matter that travels between the two locations and is subsequently changed back to light.
Princeton ESP Lab to Close
Princeton ESP Lab to Close
"If people don't believe us after all the results we've produced, then they never will," Jahn, 76, former dean of Princeton's engineering school and an emeritus professor, told The New York Times for Saturday editions.
"If people don't believe us after all the results we've produced, then they never will," Jahn, 76, former dean of Princeton's engineering school and an emeritus professor, told The New York Times for Saturday editions.
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