ScienceDaily: Strange Science News |
- NASA Mars rover Opportunity reveals geological mystery: Spherical objects unlike previously found 'blueberries'
- X-rays unravel mysterious degradation of Van Gogh painting: Protective varnish caused discoloration
- Seeing through clothing: Radiation-enabled chips could lead to low-cost security imaging systems
| Posted: 14 Sep 2012 12:40 PM PDT NASA's long-lived rover Opportunity has returned an image of the Martian surface that is puzzling researchers. Spherical objects concentrated at an outcrop Opportunity reached last week differ in several ways from iron-rich spherules nicknamed "blueberries" the rover found at its landing site in early 2004 and at many other locations to date. |
| X-rays unravel mysterious degradation of Van Gogh painting: Protective varnish caused discoloration Posted: 14 Sep 2012 05:09 AM PDT Synchrotron X-ray analysis has identified why parts of a Van Gogh painting changed color over time: a supposedly protective varnish applied after the master's death has made some bright yellow flowers turn to orange-grey. The origin is a degradation process at the interface between paint and varnish. After this discovery, conservators in many museums have to newly address the question of restoring Van Gogh paintings. |
| Seeing through clothing: Radiation-enabled chips could lead to low-cost security imaging systems Posted: 12 Sep 2012 01:15 PM PDT Scientists are reconfiguring existing semi-conductor computer chips and turning them into high-frequency circuits with the capability of seeing through packaging and clothing to produce an image of what is hidden underneath. The chip could be the basis of sophisticated but affordable, portable detection technology able to meet everyday security needs. |
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