ScienceDaily Technology Headlines
for Saturday, November 6, 2010
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New statistical model moves human evolution back three million years (November 5, 2010) -- Evolutionary divergence of humans from chimpanzees likely occurred some 8 million years ago rather than the 5 million year estimate widely accepted by scientists, a new statistical model suggests. ... > full story
Nanoshells provide golden 'touch' in killing breast tumors (November 5, 2010) -- Using tiny gold "nanoshells" to deliver just a little heat to breast tumor cells already treated with radiation boosts the killing potential of the treatment -- not just shrinking the tumor but killing the cancer stem cells, said researchers. ... > full story
Nuclear materials detector shows exact location of radiation sources (November 5, 2010) -- A table-top gamma-ray detector can not only identify the presence of dangerous nuclear materials, but can pinpoint and show their exact location and type, unlike conventional detectors. ... > full story
Colonic navigation: Nanotechnology helps deliver drugs to intestinal target (November 5, 2010) -- Nanoparticles help smuggle drugs into the gut, according to a new study. There are several drugs that would have more beneficial therapeutic effects if they could be targeted at absorption by the lower intestine. ... > full story
New Way to Peer at Distant Galaxies (November 5, 2010) -- Astronomers have discovered a new way of finding cosmic zoom lenses, which allows astronomers to peer at galaxies in the distant Universe. ... > full story
The Large Hadron Collider enters a new phase (November 5, 2010) -- Proton running for 2010 in the LHC at CERN came to a successful conclusion on November 4. Since the end of March, when the first collisions occurred at a total energy of 7 TeV, the machine and experiment teams have achieved all of their objectives for the first year of proton physics at this record energy and new ground has been explored. For the rest of the year the LHC is moving to a different phase of operation, in which lead ions will be accelerated and brought into collision in the machine for the first time. ... > full story
Neutron stars may be too weak to power some gamma-ray bursts; Black holes may be power source (November 5, 2010) -- Long-duration gamma-ray bursts flash across the universe to signal the collapse of a massive star, but this collapsar model predicts either a neutron star or a black hole is left behind. New calculations of the energy released by gamma-ray bursts find it too large to be powered by a neutron star, even highly magnetized, spinning magnetars. Thus, astronomers conclude, the likely power source is a black hole. ... > full story
Deep impact spacecraft successfully flies by comet Hartley 2 (November 4, 2010) -- The EPOXI mission successfully flew by comet Hartley 2 on Nov. 3, 2010, and the spacecraft has begun returning images. Hartley 2 is the fifth comet nucleus visited by any spacecraft and the second one visited by the Deep Impact spacecraft. ... > full story
Built-in timer for improving accuracy of cost saving paper-strip medical tests (November 4, 2010) -- Scientists are reporting the development of a simple, built-in timer intended to improve the accuracy of paper tests and test strips for diagnosing diseases inexpensively at-home and elsewhere. ... > full story
Corn starch solution can help shape solid materials (November 4, 2010) -- Researchers have developed a method to shape solid materials using a corn starch solution. The process offers a potential technique for material cutting and manufacturing processes. ... > full story
How some plants spread their seeds: Ready, set, catapult (November 4, 2010) -- Catapults are often associated with a medieval means of destruction, but for some plants, they are an effective way to launch new life. Dispersing seeds greater distances by catapulting can provide selective advantages, including the establishment of populations in new environments and escape from certain threats. Researchers measured the mechanics involved in catapulting seeds for the ballistic disperser Cardamine parviflora. ... > full story
Transparent conductive material could lead to power-generating windows (November 4, 2010) -- Scientists have fabricated transparent thin films capable of absorbing light and generating electric charge over a relatively large area. The material could be used to develop transparent solar panels or even windows that absorb solar energy to generate electricity. ... > full story
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