A lunar geochemist at Washington University in St. Louis says that there are still many answers to be gleaned from the moon rocks collected by the Apollo 11 astronauts on their historic moonwalk 40 years ago July 20.
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Posted in: on Friday, July 31, 2009 at at 8:26 PM 0 comments
GREAT MOMENTS IN SCIENCE: Opinions vary about what you should or shouldn't eat, but can your well-rounded diet be unbalanced by eating meat? Dr Karl gives that theory a grilling.
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AP - Engineers designing NASA's next moon rocket denied Wednesday that the human space flight program dubbed "Constellation" is too expensive, too risky and would unnecessarily delay man's return to space.
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SPACE.com - The 13 people aboard the International Space Station will say their farewells and split up Tuesday when the crew of the shuttle Endeavour undocks from the orbiting laboratory.
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AP - Severe weather was expected to persist across the East Coast and the Central US on Thursday.
Posted in: on Thursday, July 30, 2009 at at 10:19 PM 0 comments
In honor of scientist and astronomer Nicolaus Copernicus (1473-1543), the discovering team around Professor Sigurd Hofmann suggested the name „copernicium" with the element symbol "Cp" for the new element 112, discovered at the GSI Helmholtzzentrum für Schwerionenforschung (Center for Heavy Ion Research) in Darmstadt. It was Copernicus who discovered that the Earth orbits the Sun, thus paving the way for our modern view of the world. Thirteen years ago, element 112 was discovered by an international team of scientists at the GSI accelerator facility. A few weeks ago, the International Union of Pure and Applied Chemistry, IUPAC, officially confirmed their discovery. In around six months, IUPAC will officially endorse the new element's name. This period is set to allow the scientific community to discuss the suggested name "copernicium" before the IUPAC naming.
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Posted in: on Friday, July 24, 2009 at at 10:13 PM 0 comments
Dye-sensitized solar cells (DSSCs) are expected to power Air Force unmanned aerial vehicles (UAVs) in the future because they are an optimum energy harvesting source that may lead to longer flight times without refueling.
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A new way to classify sounds in some human languages may solve a problem that has plagued linguists for nearly 100 years--how to accurately describe click sounds distinct to certain African languages.
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Dartmouth researchers who were pioneers in Public Key Infrastructure (PKI) – a system that secures and authenticates computer communications – are now playing leading roles establishing Internet standards and guidelines for security.
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Waste from the textiles industry could with the assistance of earthworms and some animal manure become a rich compost for agriculture, according to a report in the International Journal of Environment and Pollution.
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Posted in: on Thursday, July 23, 2009 at at 10:13 PM 0 comments
A team of researchers has discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon cycle and its response to climate change.
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NASA's newly launched Lunar Reconnaissance Orbiter has snapped images of hardware left on the moon by the Apollo astronauts
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The aerospace start-up firm has previously had only one successful launch, which carried a dummy payload
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Posted in: on Wednesday, July 22, 2009 at at 10:13 PM 0 comments
Colour-changing nanoparticles could make possible a new generation of secure documents that wipe themselves clean after they've been read
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The first magnetic flips to be observed in a star other than our own suggest the influence of an extremely close "hot Jupiter" planet
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Posted in: on Tuesday, July 21, 2009 at at 10:13 PM 0 comments
Mysterious seasonal wobbles in the rate of radioactive decay may be caused by elusive particles from the sun
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By manipulating individual atoms in DNA and forming unique molecules, a Georgia State University researcher hopes to open new avenues in research towards better understanding the mechanisms of DNA replication and transcription, and perhaps leading to new treatments for diseases.
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Researchers at Washington University School of Medicine in St. Louis have shed new light on a process that fixes breaks in the genetic material of the body's cells. Their findings could lead to ways of enhancing chemotherapy drugs that destroy cancer cells by damaging their DNA.
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Scientists at Duke University and the University of North Carolina have devised a chemical technique that promises to allow neuroscientists to discover the function of any population of neurons in an animal brain, and provide clues to treating and preventing brain disease.
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On June 27, 2009, the Geostationary Operational Environmental Satellite, GOES-O, soared into space during a spectacular launch from the Cape Canaveral Air Force Station in Florida. GOES-O has now been renamed and its solar array has been deployed.
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This new guide for astronomers, known as the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) shows the Milky Way in submillimetre-wavelength light (between infrared light and radio waves [1]). Images of the cosmos at these wavelengths are vital for studying the birthplaces of new stars and the structure of the crowded galactic core.
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AFP - Two astronauts from the US space shuttle Endeavour ventured out on Saturday for the first of five planned spacewalks aimed at completing a Japanese laboratory at the International Space Station.
Posted in: on Monday, July 20, 2009 at at 10:13 PM 0 comments
Reuters - The original recordings of the first humans landing on the moon 40 years ago were erased and re-used, but newly restored copies of the original broadcast look even better, NASA officials said on Thursday.
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NASA's newly launched Lunar Reconnaissance Orbiter has snapped images of hardware left on the moon by the Apollo astronauts, striking a blow against conspiracy theories that the landings were a hoax
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See rare archive images of the Apollo 11 lift-off, taken from a limited-edition book on the subject penned by Norman Mailer
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Generating one third of electricity from renewables by 2020 is central to the UK government's low carbon initiative.
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Posted in: on Sunday, July 19, 2009 at at 5:06 PM 0 comments
Nanosized robots are going to compete at RoboCup 2009 in a microscopic soccer stadium. Each team's nanobots will have to pass some agility tests to be allowed to compete in the miniscule soccer matches. In the matches the nanobots try to "kick" a dust mite size ball through a goal. The skills the nanobots use in the competition are similar to skills that nanobots will require for futuristic technologies like microsurgery. Take a look:
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The robotic fish will patrol the harbor of Gijon, in northern Spain under a $3.6 million grant from the European Union. Hu said Gijon was chosen because port authorities there had expressed an interest in the technology.Here's a video (no sound) that shows the robotic fish in action. (via Daily Mail, Ecofriend.org)
The plan might seem "like something straight out of science fiction," said Rory Doyle, a researcher working on the project, but he explained that there was a very simple reason for choosing fishlike machines to monitor the harbor's environmental health.
"The design of fish which nature has produced is a very energy-efficient one," Doyle said. "The fish's efficiency is created by hundreds of millions of years' of evolution. Submarines come nowhere near it."
Information gathered from the robo-fish would be transmitted to the port's control center using a wireless Internet signal when the devices surfaced. The data gathered would be used to create a three-dimensional pollution map of the harbor's area.
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One of Australia's rarest creatures has returned home. The stick bug, or phasmid, had thought to have been eaten into extinction but instead they were found inhabiting an island just offshore. The AP says the Melbourne Zoo is now breeding the insects in hopes of returning them to the mainland.
Posted in: on Saturday, July 18, 2009 at at 4:52 PM 0 comments
