ScienceDaily: Top Technology News |
- Copper chains: Earth's deep-seated hold on copper revealed
- New index identifies periods when global stock markets might decline
- Controlling quantum tunneling with light: Novel particle opens door to taming mysteries of tunneling
- Initial stages by which giant gypsum crystals form
| Copper chains: Earth's deep-seated hold on copper revealed Posted: 05 Apr 2012 12:29 PM PDT Earth is clingy when it comes to copper. Nature conspires at scales both large and small -- from the realms of tectonic plates down to molecular bonds -- to keep most of Earth's copper buried dozens of miles below ground. A new study gives new insight into the way continents form and could help locate new sources of copper.  |
| New index identifies periods when global stock markets might decline Posted: 05 Apr 2012 11:22 AM PDT Researchers have found a way to measure the likelihood of global stock market losses by identifying periods in which shocks may be more likely to spread across many national markets. This "fragility index" identifies periods in which international equity markets are more susceptible to widespread pull-backs by identifying common risk exposures. The index identifies when systemic risk exposure is high in markets across multiple countries, and shows an increasing probability of a global stock market draw-down.  |
| Controlling quantum tunneling with light: Novel particle opens door to taming mysteries of tunneling Posted: 05 Apr 2012 11:21 AM PDT Scientists have used light to help push electrons through a classically impenetrable barrier. While quantum tunneling is at the heart of the peculiar wave nature of particles, this is the first time that it has been controlled by light.  |
| Initial stages by which giant gypsum crystals form Posted: 05 Apr 2012 11:21 AM PDT Gypsum is a naturally occurring mineral which is often used in industrial processes and which in nature, if left alone for thousands of years, can grow into huge translucent, towering and eerie, crystals more than 10 meters tall. These are famed for their beauty in places such as the Cave of Crystals in Mexico. Nevertheless, the formation of gypsum has until now been largely unexplored.  |
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