New theory on African exit
Modern humans left Africa twice as early as previously thought, spreading in a number of climate-driven waves, new research suggests.
Archaeology
Jan 30, 2013
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Page 4 - News tagged with cracks
Scientists remember Turing, father of modern computers
Scientists will gather from Bangalore to Texas on Saturday to honour British mathematician Alan Turing, a pioneer of the modern computer whose code-cracking is credited with shortening World War II.
Computer Sciences
Jun 23, 2012
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Researchers develop prototype automated pavement crack detection and sealing system
Sealing cracks in roadways ensures a road's structural integrity and extends the time between major repaving projects, but conventional manual crack sealing operations expose workers to dangerous traffic and cover a limited ...
Engineering
Jun 18, 2012
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Amateur scientists find niche in locating new planets
Over the past decade, scientists have found evidence of hundreds of planets orbiting stars outside our solar system. A group of volunteers has also joined the search, and they have found several additional planets that initially ...
Astronomy
Jun 13, 2012
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Group uses controlled cracking for nanofabrication
(Phys.org) -- When creating nanomaterials, cracking is generally considered a problem; it usually means something has gone wrong and the result, as with other material making processes such as glass or ceramics, almost always ...
Research teams develop rolling microcapsules to repair micro-sized defects in surfaces
(PhysOrg.com) -- Imagine if instead of relying on special x-ray or electrical current testing technology to find really tiny cracks in the skin that covers an airplane, microcapsules filled with easily detected materials ...
New data finds regions of North America have remained extremely stable for more than one billion years
Like lines in a deeply weathered face, the cracks and fissures in the Earth’s crust reveal a long and tumultuous lifetime. Massive continent-bearing plates have come together and broken apart, setting off earthquakes ...
Earth Sciences
Jan 6, 2012
2
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Listening to the stars
It is almost night on the island of Puerto Rico. Astronomer Joanna Rankin raises her head toward the sky. A few of the brightest stars shine through blue cracks in a ragged dome of gray clouds. To her back, a jungle throbs ...
Astronomy
Dec 1, 2011
3
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Bridge destruction to reveal clues about 'fracture-critical' spans
A civil engineer at Purdue University is taking advantage of the demolition of a bridge spanning the Ohio River to learn more about how bridges collapse in efforts to reduce the annual cost of inspecting large spans.
Engineering
Jul 28, 2011
1
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'Sensing skin' could monitor the health of concrete infrastructure continually and inexpensively
In 2009, the American Society of Civil Engineers (ASCE) assigned the grade "D" to the overall quality of infrastructure in the U.S. and said that ongoing evaluation and maintenance of structures was one of five key areas ...
Engineering
Jun 29, 2011
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