Uncategorized
- Planetary Science
Signs of recent water on Mars
Pictures showing fresh deposits of bright material on two Martian gullies provide the most compelling evidence yet that water flowed on parts of the Red Planet during the last few years.
- Tech
Shape shifter shifts twice
Certain plastics known as shape-memory polymers switch to predetermined shapes when triggered by heat or light. Now, researchers have developed more-versatile versions of such polymers. When heated, each of the new triple-shape polymers switches to a second shape. Then, at a higher temperature, the plastic changes to a third form. “For some applications, [these] more-complex […]
-
