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Category Archives: Physical sciences

Cosmic lens splits supernova into four images

Astronomers using NASA’s Hubble Space Telescope have for the first time spotted four images of the same distant exploding star, arranged in an “Einstein’s Cross,” a cross-shape pattern created by the powerful gravity of a foreground galaxy embedded in a …
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Core work: Iron vapor gives clues to formation of Earth and Moon

By Kat Kerlin Recreating the violent conditions of Earth’s formation, scientists are learning more about how iron vaporizes and how this iron rain affected the formation of the Earth and Moon. The study is published March 2 in Nature Geoscience. …
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Better measures of single molecule circuits

It’s nearly 50 years since Gordon Moore predicted that the density of transistors on an integrated circuit would double every two years. “Moore’s Law” has turned out to be a self-fulfilling prophecy that technologists pushed to meet, but to continue …
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Engineering self-assembling amyloid fibers

Nature has many examples of self-assembly, and bioengineers are interested in copying or manipulating these systems to create useful new materials or devices. Amyloid proteins, for example, can self-assemble into the tangled plaques associated with Alzheimer’s disease — but similar …
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New X-ray technique for surfaces

Surfaces are very interesting to material scientists. The reactions that happen at the point where inside and outside meet, and elements interact with other chemicals or radiation, are important for developing new technology for batteries, fuel cells or photovoltaic panels, …
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UC Davis, Livermore announce graduate mentorship program awards

Contributed by AJ Cheline Since 1963, UC Davis and Lawrence Livermore National Laboratory (LLNL) scientists and engineers have conducted joint interdisciplinary research that leverage the strengths of both institutions to address a variety of critical societal problems. Over the last …
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Making oxygen before life

About one-fifth of the Earth’s atmosphere is oxygen, pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running. But before the first photosynthesizing organisms appeared about …
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Dust to dust: BICEP2 result on gravitational waves may not be so strong

Earlier this year, physicists celebrated results from the BICEP2 experiment which reported evidence of gravitational waves, a signature of cosmic inflation immediately after the Big Bang. But earlier this week, results from the Planck space telescope cast doubt on the …
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Reproducing deep-Earth chemistry

A new pressure cell invented by UC Davis researchers makes it possible to simulate chemical reactions deep in the Earth’s crust. The cell allows researchers to perform nuclear magnetic resonance (NMR) measurements on as little as 10 microliters of liquid …
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UC Davis-led team achieves first light for flying infrared instrument

As we blogged last week, the EXES (Echelon-Cross-Echelle Spectrograph) instrument, a collaboration involving UC Davis and NASA Ames scientists and engineers and led by research scientist Matthew J. Richter of the UC Davis Physics Department, successfully carried out its first …
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