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Tuesday, September 18, 2012
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ScienceDaily: Top Technology News
ScienceDaily: Top Technology News |
- Precision motion tracking -- thousands of cells at once: Technique could open new windows into protozoan behavior, microbial diseases and fertility
- 'Blue Brain' project accurately predicts connections between neurons
- Most extensive pictures ever of an organism's DNA mutation processes
- Temperature in turbulent convection: Discovery could aid design of new cooling systems
- Hubble sees NGC 7090 — an actively star-forming galaxy
- Dry-run experiments verify key aspect of nuclear fusion concept: Scientific 'break-even' or better is near-term goal
- Assessing a new technique for ensuring fresh produce remains Salmonella-free
- Spacetime ripples from dying black holes could help reveal how they formed
- World’s most powerful digital camera opens eye, records first images in hunt for dark energy
- Damaged metal surfaces repair themselves
- Mobile phones and wireless networks: No evidence of health risk found, Norwegian experts find
| Posted: 17 Sep 2012 12:20 PM PDT Researchers have developed a new way to observe and track large numbers of rapidly moving objects under a microscope, capturing precise motion paths in three dimensions. Over the course of their study, researchers followed an unprecedented 24,000 rapidly moving cells over wide fields of view and through large sample volumes, recording each cell's path for as long as 20 seconds.  |
| 'Blue Brain' project accurately predicts connections between neurons Posted: 17 Sep 2012 12:20 PM PDT Scientists have identified key principles that determine synapse-scale connectivity by virtually reconstructing a cortical microcircuit and comparing it to a mammalian sample. These principles now make it possible to predict the locations of synapses in the neocortex.  |
| Most extensive pictures ever of an organism's DNA mutation processes Posted: 17 Sep 2012 12:17 PM PDT Biologists and informaticists have produced one of the most extensive pictures ever of mutation processes in the DNA sequence of an organism, elucidating important new evolutionary information about the molecular nature of mutations and how fast those heritable changes occur.  |
| Temperature in turbulent convection: Discovery could aid design of new cooling systems Posted: 17 Sep 2012 10:23 AM PDT An international team of physicists is working to ascertain more about the fundamental physical laws that are at work in a process known as convection, which occurs in a boiling pot of water as well as in the turbulent movement of the liquid outer core of Earth. The team's new finding specifies the way that the temperature of a gas or liquid varies with the distance from a heat source during convection.  |
| Hubble sees NGC 7090 — an actively star-forming galaxy Posted: 17 Sep 2012 10:05 AM PDT A new image portrays a beautiful view of the galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. The galaxy is viewed edge-on from Earth, meaning we cannot easily see the spiral arms, which are full of young, hot stars. However, a side-on view shows the galaxy's disc and the bulging central core, where typically a large group of cool old stars are packed in a compact, spheroidal region. In addition, there are two interesting features present in the image that are worth mentioning.  |
| Posted: 17 Sep 2012 09:42 AM PDT Magnetically imploded tubes, intended to help produce controlled nuclear fusion at scientific "break-even" energies or better within the next few years, have functioned successfully in preliminary tests.  |
| Assessing a new technique for ensuring fresh produce remains Salmonella-free Posted: 17 Sep 2012 09:39 AM PDT Researchers have tested a new technique to ensure fresh produce is free of bacterial contamination. Plasmas are a mix of highly energetic particles created when gases are excited by an energy source. They can be used to destroy bacteria but as new research shows, some can hide from its effects in the microscopic surface structures of different foods.  |
| Spacetime ripples from dying black holes could help reveal how they formed Posted: 17 Sep 2012 09:34 AM PDT Researchers have discovered a new property of black holes: their dying tones could reveal the cosmic crash that produced them.  |
| World’s most powerful digital camera opens eye, records first images in hunt for dark energy Posted: 17 Sep 2012 07:46 AM PDT Eight billion years ago, rays of light from distant galaxies began their long journey to Earth. That ancient starlight has now found its way to a mountaintop in Chile, where the newly-constructed Dark Energy Camera, the most powerful sky-mapping machine ever created, has captured and recorded it for the first time.  |
| Damaged metal surfaces repair themselves Posted: 17 Sep 2012 06:00 AM PDT A coating filled with tiny lubricant capsules could come to the rescue when metal surfaces dry out and friction builds up.  |
| Mobile phones and wireless networks: No evidence of health risk found, Norwegian experts find Posted: 17 Sep 2012 05:55 AM PDT There is no scientific evidence that low-level electromagnetic field exposure from mobile phones and other transmitting devices causes adverse health effects, according to a report presented by a Norwegian Expert Committee. In addition, the Committee provides advice to authorities about risk management and regulatory practice.  |
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