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Vacuum flask

Scientists Create Material More Insulating than the Vacuum

Physics / General Physics

created Dec 10, 2009 | popularity 4.5 / 5 (57) | comments 27

(PhysOrg.com) -- With its complete lack of atoms, a vacuum is often considered to be the best known insulator. For this reason, vacuums are regularly used to reduce heat transfer, such as in the lining of ...


Researchers engineer bacteria to turn carbon dioxide into liquid fuel

Researchers engineer bacteria to turn carbon dioxide into liquid fuel

Biology / Biotechnology

created Dec 10, 2009 | popularity 4.7 / 5 (43) | comments 25

(PhysOrg.com) -- The genetically modified cyanobacterium consumes carbon dioxide and produces the liquid fuel isobutanol by using energy from sunlight.


Study: Earth more sensitive to carbon dioxide than previously thought

Study: Earth more sensitive to carbon dioxide than previously thought

Space & Earth / Earth Sciences

created Dec 06, 2009 | popularity 3.1 / 5 (51) | comments 91

In the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week.


Hunt for Higgs boson: Mass of top quark narrows search

Hunt for Higgs boson: Mass of top quark narrows search

Physics / General Physics

created Dec 07, 2009 | popularity 4.7 / 5 (30) | comments 29

(PhysOrg.com) -- New high-energy particle research by a team working with data from Fermi National Accelerator Laboratory further heightens the uncertainty about the exact nature of a key theoretical component ...


Scientists Generate Black Hole Radiation in the Lab

Scientists Generate Black Hole Radiation in the Lab

Physics / Plasma Physics

created Dec 07, 2009 | popularity 4.2 / 5 (32) | comments 9

(PhysOrg.com) -- Due to their violent nature and long distance from Earth, black holes and their surroundings are very difficult to study. Currently, the main method to observe a black hole is to use an X-ray ...


Digital quantum battery

Digital Quantum Battery Could Boost Energy Density Tenfold

Physics / Quantum Physics

created Dec 22, 2009 | popularity 4.9 / 5 (27) | comments 9

(PhysOrg.com) -- Physicists theorize that quantum phenomena could provide a major boost to batteries, with the potential to increase energy density up to 10 times that of lithium ion batteries. According to ...


Astronomers find super-Earth using amateur, off-the-shelf technology

Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology (w/ Video)

Space & Earth / Astronomy

created Dec 16, 2009 | popularity 4.9 / 5 (27) | comments 10

(PhysOrg.com) -- Astronomers announced today that they have discovered a "super-Earth" orbiting a red dwarf star 40 light-years from Earth. They found the distant planet with a small fleet of ground-based ...


Tree of life

Evolution may take giant leaps

Biology / Evolution

created Dec 11, 2009 | popularity 4.5 / 5 (29) | comments 39

(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...


Arctic ice

Study: Earth's polar ice sheets vulnerable to even moderate global warming

Space & Earth / Earth Sciences

created Dec 16, 2009 | popularity 2.8 / 5 (46) | comments 40

A new analysis of the geological record of the Earth's sea level, carried out by scientists at Princeton and Harvard universities and published in the Dec. 16 issue of Nature, employs a novel statistical approa ...


A Superbright Supernova That’s the First of Its Kind

A Superbright Supernova That’s the First of Its Kind

Space & Earth / Astronomy

created Dec 02, 2009 | popularity 4.7 / 5 (24) | comments 6

(PhysOrg.com) -- An extraordinarily bright, extraordinarily long-lasting supernova named SN 2007bi, snagged in a search by a robotic telescope, turns out to be the first example of the kind of stars that first ...


Molecular Transistor

Scientists create world's first molecular transistor

Nanotechnology / Nanophysics

created Dec 23, 2009 | popularity 4.9 / 5 (23) | comments 1

A group of scientists has succeeded in creating the first transistor made from a single molecule. The team, which includes researchers from Yale University and the Gwangju Institute of Science and Technology ...


New way to break some of the strongest chemical bonds

New way to break some of the strongest chemical bonds

Chemistry / Materials Science

created Dec 16, 2009 | popularity 4.6 / 5 (24) | comments 0

(PhysOrg.com) -- Scientists at Cornell University in the U.S. have found a new way of breaking two of the strongest chemical bonds, at ambient temperature and pressure, and this breakthrough could lead to ...


Global warming likely to be amplified by slow changes to Earth systems

Global warming likely to be amplified by slow changes to Earth systems

Space & Earth / Earth Sciences

created Dec 20, 2009 | popularity 2.8 / 5 (40) | comments 48

Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...


violin

Secret behind the composition of the varnish on Stradivari violins revealed

Chemistry / Analytical Chemistry

created Dec 04, 2009 | popularity 4.7 / 5 (23) | comments 3

(PhysOrg.com) -- Antonio Stradivari is the most famous instrument maker of all time. He was especially famous for his violins, which he produced in Cremona from about 1665 until his death in 1737. In particular, ...


A picture shows Tel Aviv's sea front promenade on the Israeli Mediterranean coastline

Mediterranean Sea filled in less than two years: study

Space & Earth / Earth Sciences

created Dec 09, 2009 | popularity 4.7 / 5 (23) | comments 2

The Mediterranean Sea was mostly filled in less than two years in a dramatic flood around 5.33 million years ago in which water poured in from the Atlantic, according to a study published Wednesday.