News tagged with diameter
No small measure: Origins of nanorod diameter discovered
Mar 19, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small?
Search results for diameter
Patterns in Mars crater floors give picture of drying lakes
Space & Earth / Space Exploration
Sep 16, 2009 |
4.8 / 5 (6) |
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Networks of giant polygonal troughs etched across crater basins on Mars have been identified as desiccation cracks caused by evaporating lakes, providing further evidence of a warmer, wetter martian past. ...
NASA Launches New Technology: An Inflatable Heat Shield
Space & Earth / Space Exploration
Aug 17, 2009 |
4.2 / 5 (5) |
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A successful NASA flight test Monday demonstrated how a spacecraft returning to Earth can use an inflatable heat shield to slow and protect itself as it enters the atmosphere at hypersonic speeds.
Hundreds of dinosaur nests found in India
Other Sciences / Archaeology & Fossils
Oct 02, 2009 |
4.7 / 5 (12) |
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(PhysOrg.com) -- Geologists have discovered hundreds of fossilized nests each containing clutches of eight dinosaur eggs. The eggs were located in sand banks in Tamil Nadu in Southern India.
Asteroid Juno Grabs the Spotlight
Space & Earth / Space Exploration
Sep 17, 2009 |
3 / 5 (1) |
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(PhysOrg.com) -- Toward the end of September, the sun will turn a spotlight on the asteroid Juno, giving that bulky lump of rock a rare featured cameo in the night sky. Those who get out to a dark, unpolluted ...
Distal Rampart of Crater in Chryse Planitia
Space & Earth / Space Exploration
Nov 13, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Impact craters on Mars are kind of neat. Many of them look very different than impact craters seen on Earth's moon or Mercury. Fresh lunar and Mercurian craters have ejecta blankets that look ...
Report: NASA can't keep up with killer asteroids
Space & Earth / Space Exploration
Aug 12, 2009 |
4.6 / 5 (7) |
9
(AP) -- NASA is charged with seeking out nearly all the asteroids that threaten Earth but doesn't have the money to do the job, a federal report says.
Satellite imagery shows Typhoon Vamco has a huge 45-mile wide eye
Space & Earth / Earth Sciences
Aug 24, 2009 |
3.7 / 5 (3) |
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Typhoon Vamco is being as stubborn in its quest to live in the Pacific Ocean as Bill is in the Atlantic Ocean this week, and NASA satellite data confirmed that the large storm has a huge eye, about 45 miles ...
Better Way to Measure Particle Shape Proves Popular
Sep 08, 2009 |
5 / 5 (2) |
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Tiny particles are pivotal to climate change, public health, and nanotechnology. A significant fraction of these particles are aspherical, yet scientists must routinely assume the particles are spherical to ...
Red Sea coral seen to feed on jellyfish
Nov 17, 2009 |
4.5 / 5 (12) |
2
(PhysOrg.com) -- Corals depends on the products of photosynthetic algae for most of their food, but they also eat tiny plankton. Now, for the first time, there is evidence of a coral eating jellyfish.
Giant impact near India -- not Mexico -- may have doomed dinosaurs
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.8 / 5 (42) |
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A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 ...
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