Humans were already recycling 13,000 years ago, burnt artifacts show

ScienceDaily (Sep. 20, 2012) — A study at the Universitat Rovira i Virgili and the Catalan Institute of Human Paleoecology and Social Evolution (IPHES) reveals that humans from the Upper Palaeolithic Age recycled their stone artefacts to be put to other...

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Genetic mutation may have allowed early humans to migrate throughout Africa

ScienceDaily (Sep. 19, 2012) — A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to...

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Ancient tooth may provide evidence of early human dentistry

ScienceDaily (Sep. 19, 2012) — Researchers may have uncovered new evidence of ancient dentistry in the form of a 6,500-year-old human jaw bone with a tooth showing traces of beeswax filling, as reported Sept. 19 in the open access journal PLOS ONE. ...

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Single-atom writer a landmark for quantum computing

ScienceDaily (Sep. 19, 2012) — A research team led by Australian engineers has created the first working quantum bit based on a single atom in silicon, opening the way to ultra-powerful quantum computers of the future. In a landmark paper published...

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Thermoelectric material is the best at converting heat waste to electricity

ScienceDaily (Sep. 19, 2012) — Northwestern University scientists have developed a thermoelectric material that is the best in the world at converting waste heat to electricity. This is very good news once you realize nearly two-thirds of energy input...

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Medication effective in treating social withdrawal in Fragile X and potentially autism patients

ScienceDaily (Sep. 19, 2012) — An investigational compound that targets the core symptoms of fragile X syndrome is effective for addressing the social withdrawal and challenging behaviors characteristic of the condition, making it the first such discovery...

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Using a laser to 'see' the smallest world: Powerful laser breathes new life into an old technology for studying atomic-level structures

ScienceDaily (Sep. 19, 2012) — A multi-university team has employed a high-powered laser based at UC Santa Barbara to dramatically improve one of the tools scientists use to study the world at the atomic level. The team used their amped-up electron paramagnetic...

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Experiment corrects prediction in quantum theory

ScienceDaily (Sep. 19, 2012) — An international team of scientists is rewriting a page from the quantum physics rulebook using a University of Florida laboratory once dubbed the coldest spot in the universe. Much of what we know about quantum mechanics...

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Human brains share a consistent genetic blueprint and possess enormous biochemical complexity

ScienceDaily (Sep. 19, 2012) — Scientists at the Allen Institute for Brain Science reported in the latest issue of the journal Nature that human brains share a consistent genetic blueprint and possess enormous biochemical complexity. The findings stem...

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The more people rely on their intuitions, the more cooperative they become

ScienceDaily (Sep. 19, 2012) — It's an age old question: Why do we do good? What makes people sometimes willing to put "We" ahead of "Me?" Perhaps our first impulse is to be selfish, and cooperation is all about reining in greed. Or maybe cooperation...

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Ultra-distant galaxy discovered amidst cosmic 'dark ages': May be oldest galaxy ever

ScienceDaily (Sep. 19, 2012) — With the combined power of NASA's Spitzer and Hubble space telescopes as well as a cosmic magnification effect, a team of astronomers led by Wei Zheng of The Johns Hopkins University has spotted what could be the most distant...

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CT scan and 3-D print help scientists reconstruct an ancient mollusk

ScienceDaily (Sep. 19, 2012) — Using a combination of traditional and innovative model-building techniques, scientists in the U.S. and a specialist in Denmark have created a lifelike reconstruction of an ancient mollusk, offering a vivid portrait of...

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How organisms evolve new functions: Evolution is as complicated as 1-2-3

ScienceDaily (Sep. 19, 2012) — A team of researchers at Michigan State University has documented the step-by-step process in which organisms evolve new functions. The results, published in the current issue of Nature, are revealed through an in-depth,...

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Your memory is like the telephone game, altered with each retelling

ScienceDaily (Sep. 19, 2012) — Remember the telephone game where people take turns whispering a message into the ear of the next person in line? By the time the last person speaks it out loud, the message has radically changed. It's been altered with...

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Warming ocean could start big shift of Antarctic ice

ScienceDaily (Sep. 19, 2012) — Fast-flowing and narrow glaciers have the potential to trigger massive changes in the Antarctic ice sheet and contribute to rapid ice-sheet decay and sea-level rise, a new study has found. Research results published...

08.18 | 0 komentar | Read More

Out of this world nanoscience: A computer chip that can assemble itself?

ScienceDaily (Sep. 19, 2012) — Imagine a computer chip that can assemble itself. According to Eric M. Furst, professor of chemical and biomolecular engineering at the University of Delaware, engineers and scientists are closer to making this and other...

08.18 | 0 komentar | Read More

Did a 'forgotten' meteor have a deadly, icy double-punch?

ScienceDaily (Sep. 19, 2012) — When a huge meteor collided with Earth about 2.5 million years ago and fell into the southern Pacific Ocean it not only could have generated a massive tsunami but also may have plunged the world into the Ice Ages, a new...

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