News tagged with cracks
Stronger material for filling dental cavities has ingredients from human body
May 20, 2009 |
5 / 5 (3) |
0
Scientists in Canada and China are reporting development of a new dental filling material that substitutes natural ingredients from the human body for controversial ingredients in existing “composite,” or ...
Blast mitigation expert helps create materials resistant to explosions
Apr 23, 2009 |
2.5 / 5 (2) |
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The first few microseconds after an explosion are the most important moments for Arun Shukla, because that's when the first hint of damage occurs to nearby structures. As one of the world's leaders in the field of fracture ...
Researchers Crack the Mystery of Resilient Teeth
Apr 17, 2009 |
4.9 / 5 (14) |
0
(PhysOrg.com) -- After years of biting and chewing, how are human teeth able to remain intact and functional? A team of researchers from The George Washington University and other international scholars have ...
NRL scientists study cracks in brittle materials
Nov 20, 2008 |
3.3 / 5 (3) |
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The Naval Research Laboratory (NRL) is part of an international team of scientists that is learning more about how cracks form in brittle materials. The team used both computer modeling and experimentation to investigate ...
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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. ...
First full 3-D view of cracks growing in steel
Jul 17, 2008 |
4 / 5 (9) |
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A team of researchers from the University of Manchester (United Kingdom), the National Institute of Applied Sciences in Lyon (France) and the ESRF has revealed how a growing crack interacts with the 3D crystal ...
Camera on Mars Orbiter Snaps Phoenix During Landing
Space & Earth / Space Exploration
May 27, 2008 |
4.9 / 5 (22) |
3
A telescopic camera in orbit around Mars caught a view of NASA's Phoenix Mars Lander suspended from its parachute during the lander's successful arrival at Mars Sunday evening, May 25.
Nanoresearchers challenge dogma in protein transportation in cells
Sep 21, 2009 |
5 / 5 (1) |
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New data on signaling proteins, called G proteins, may prove important in fighting diseases such as cardiovascular, neurodegenerative disorders, and cancer. For many decades scientists have puzzled on "How ...
Engineers Show How to Inhibit Fractures in Solid Surfaces of Aircraft, Electronic Devices
Jan 30, 2008 |
4.4 / 5 (9) |
1
Engineers at the University of Massachusetts Amherst have found that a strong electric field can stabilize the surface of metals and other solids that conduct electricity, inhibiting the formation of cracks caused by stress. ...
Flying by the skin of our teeth
Aug 19, 2009 |
4.6 / 5 (5) |
2
It's been a mystery: how can our teeth withstand such an enormous amount of pressure, over many years, when tooth enamel is only about as strong as glass? A new study by Prof. Herzl Chai of Tel Aviv University's School of ...
Phoenix Close-Up Images of 'Snow Queen' Show Changes
Space & Earth / Space Exploration
Jul 30, 2008 |
4.1 / 5 (7) |
0
(PhysOrg.com) -- A distinctive hard-surface feature called "Snow Queen" beneath NASA's Phoenix Mars Lander visibly changed sometime between mid-June and mid-July, close-up images from the Robotic Arm Camera ...
Space radar to improve miners' safety
Space & Earth / Earth Sciences
Jun 19, 2008 |
4.7 / 5 (3) |
0
Advanced ground penetration radar, originally developed to investigate the soil structure on the Moon and other planets on ESA planetary missions, is now being used in Canadian mines to spot hidden cracks and weaknesses in ...
Ion-Mask Technology Could Make Waterproof Gadgets Widespread
Jan 02, 2008 |
4.7 / 5 (39) |
3
Using technology developed by the British Defense Department to repel chemicals from soldiers' uniforms, a spin-off company called P2i is fabricating waterproof cell phones and other gadgets. Because the so-called ...
For earthquakes 'speed kills'
Space & Earth / Earth Sciences
Aug 17, 2007 |
3.5 / 5 (6) |
0
High-speed ruptures travelling along straight fault lines could explain why some earthquakes are more destructive than others, according to an Oxford University scientist.
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