ScienceDaily: Top Science News |
- Groundwater depletion in semiarid regions of Texas and California threatens US food security
- People smile when they are frustrated, and the computer knows the difference
- Smallest possible five-ringed structure made: 'Olympicene' molecule built using clever synthetic organic chemistry
| Groundwater depletion in semiarid regions of Texas and California threatens US food security Posted: 28 May 2012 12:48 PM PDT The US's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study. The study paints the highest resolution picture yet of how groundwater depletion varies across space and time in California's Central Valley and the High Plains of the central U.S. |
| People smile when they are frustrated, and the computer knows the difference Posted: 28 May 2012 12:27 PM PDT Do you smile when you're frustrated? Most people think they don't -- but they actually do, a new study has found. What's more, it turns out that computers programmed with the latest information from this research do a better job of differentiating smiles of delight and frustration than human observers do. |
| Posted: 28 May 2012 07:02 AM PDT Scientists have created and imaged the smallest possible five-ringed structure -- about 100,000 times thinner than a human hair. Dubbed 'olympicene', the single molecule was brought to life in a picture thanks to a combination of clever synthetic chemistry and state-of-the-art imaging techniques. |
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