ScienceDaily: Top Technology News |
- NASA Mars research helps find buried water on Earth
- Biochemical cell signals quantified: Data capacity much lower than expected, scientists find
- NASA's Kepler discovery confirms first planet orbiting two stars
- Smartphone battery life could dramatically improve with new invention
- Small distant galaxies host supermassive black holes, astronomers find
- Carbon nanoparticles break barriers -- and that may not be good
- Turbulent lives of stars
- Electronic bucket brigade could boost solar cell voltages
- Scientists take first step towards creating 'inorganic life'
- Fast switching and printable transistor invented
- How single stars lost their companions
| NASA Mars research helps find buried water on Earth Posted: 15 Sep 2011 03:28 PM PDT A NASA-led team has used radar sounding technology developed to explore the subsurface of Mars to create high-resolution maps of freshwater aquifers buried deep beneath an Earth desert, in the first use of airborne sounding radar for aquifer mapping.  |
| Biochemical cell signals quantified: Data capacity much lower than expected, scientists find Posted: 15 Sep 2011 01:35 PM PDT Just as cell phones and computers transmit data through electronic networks, the cells of your body send and receive chemical messages through molecular pathways. The term "cell signaling" was coined more than 30 years ago to describe this process. For the first time, scientists have quantified the data capacity of a biochemical signaling pathway and found a surprise -- it's lower than a dial-up modem.  |
| NASA's Kepler discovery confirms first planet orbiting two stars Posted: 15 Sep 2011 11:48 AM PDT The existence of a world with a double sunset, as portrayed in the film Star Wars more than 30 years ago, is now scientific fact. NASA's Kepler mission has made the first unambiguous detection of a circumbinary planet -- a planet orbiting two stars -- 200 light-years from Earth.  |
| Smartphone battery life could dramatically improve with new invention Posted: 15 Sep 2011 10:16 AM PDT A new "subconscious mode" for smartphones and other WiFi-enabled mobile devices could extend battery life by as much as 54 percent for users on the busiest networks.  |
| Small distant galaxies host supermassive black holes, astronomers find Posted: 15 Sep 2011 10:16 AM PDT Using the Hubble Space Telescope to probe the distant universe, astronomers have found supermassive black holes growing in surprisingly small galaxies. The findings suggest that central black holes formed at an early stage in galaxy evolution.  |
| Carbon nanoparticles break barriers -- and that may not be good Posted: 15 Sep 2011 08:37 AM PDT In a new study, researchers studied cellular alterations in the urine-blood barrier in the kidney caused by repeated exposure to low concentrations of carbon nanoparticles. Among the first to study concentrations of these tiny particles that are low enough to mimic the actual exposure of an ordinary individual, researchers say this is the initial step to understanding the assault on the human body of accidental exposure to CNPs.  |
| Posted: 15 Sep 2011 07:29 AM PDT The stars are boiling! This is because of the energy generated in the center of the star that wants to escape. If this does not happen quickly enough, the star starts to 'boil' in the outer layers causing vibrations that result in light variations, like in the Sun. Such oscillations have now been discovered, but in a much hotter star.  |
| Electronic bucket brigade could boost solar cell voltages Posted: 15 Sep 2011 07:28 AM PDT Some ferroelectric materials can develop extremely high voltages when light falls on them, which might greatly improve solar cells if scientists could figure out how they do it. Researchers have solved the mystery for one ferroelectric, bismuth ferrite, revealing a principle that should apply to other materials too. The secret is an electronic "bucket brigade" that passes electrons stepwise from one electrically polarized region to the next.  |
| Scientists take first step towards creating 'inorganic life' Posted: 15 Sep 2011 06:16 AM PDT Scientists in Scotland say they have taken their first tentative steps towards creating 'life' from inorganic chemicals potentially defining the new area of 'inorganic biology'.  |
| Fast switching and printable transistor invented Posted: 15 Sep 2011 05:37 AM PDT A fully functional, fast switching and printable transistor in cheap plastic has just been invented.  |
| How single stars lost their companions Posted: 15 Sep 2011 05:37 AM PDT Not all stars are loners. In our home galaxy, the Milky Way, about half of all stars have a companion and travel through space in a binary system. But explaining why some stars are in double or even triple systems while others are single has been something of a mystery. Now a team of astronomers think they have the answer – different stellar birth environments decide whether a star holds on to its companion.  |
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