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- Tech
Electronics Gets Y’s: Nanotubes branch out as novel transistors
Y-shaped nanotubes might become a common component in ultrasmall electronic circuitry.
- Materials Science
Sun and Sand: Dirty silicon could supply solar power
Scientists have proposed a way to control the distribution of contaminants in silicon, potentially opening up the use of cheaper starting materials for making solar cells.
- Planetary Science
Top of the Martian hill
After a 14-month climb up a Martian hill, NASA's rover Spirit took a panoramic image of the view from the top.
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Thinking the Hurt Away: Expectations hitch ride on pain’s brain pathway
Positive thinking exerts a calming effect on pain-related brain areas, yielding a substantial reduction in the actual perception of pain, a brain-scan investigation suggests.
