ScienceDaily: Top Technology News |
- NASA telescopes help solve ancient supernova mystery
- Nanoparticles and their size may not be big issues
- Researchers build transparent, super-stretchy skin-like sensor
- New device measures viscosity of ketchup and cosmetics
- Chemists find new dimension to rules for reactions
| NASA telescopes help solve ancient supernova mystery Posted: 24 Oct 2011 10:51 AM PDT A mystery that began nearly 2,000 years ago, when Chinese astronomers witnessed what would turn out to be an exploding star in the sky, has been solved. New infrared observations from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer, or WISE, reveal how the first supernova ever recorded occurred and how its shattered remains ultimately spread out to great distances.  |
| Nanoparticles and their size may not be big issues Posted: 24 Oct 2011 10:30 AM PDT If you've ever eaten from silverware or worn copper jewelry, you've been around nanoparticles dropped into the environment, say scientists. Using high-powered microscopes, researchers looked at common metal products, finding that we've been exposed for years and concluding that 'size' concerns may be overblown.  |
| Researchers build transparent, super-stretchy skin-like sensor Posted: 24 Oct 2011 07:17 AM PDT Using carbon nanotubes bent to act as springs, researchers have developed a stretchable, transparent skin-like sensor. The sensor can be stretched to more than twice its original length and bounce back perfectly to its original shape. It can sense pressure from a firm pinch to thousands of pounds. The sensor could have applications in prosthetic limbs, robotics and touch-sensitive computer displays.  |
| New device measures viscosity of ketchup and cosmetics Posted: 24 Oct 2011 05:46 AM PDT A device that can measure and predict how liquids flow under different conditions will ensure consumer products -- from makeup to ketchup -- are of the right consistency.  |
| Chemists find new dimension to rules for reactions Posted: 20 Oct 2011 11:50 AM PDT Theoretical chemists have solved an important mystery about the rates of chemical reactions and the so-called Polanyi rules. The findings reveal why a reaction involving methane does not conform to the known rules, a problem that has baffled physical chemists in recent years. Long-range, their findings could play a role in the development of cleaner, more efficient fuels.  |
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