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LiveScience

A small water snake has developed a sneaky trick: It startles fish into swimming right into its mouth.

The tentacled snake has the trick so down pat that after scaring the fish, the snake aims and chomps down in a certain location where it knows the fish will soon be. The snake doesn't even have to track its prey.

 

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Washington Post

Matthew Brzica and his wife hardly noticed when the hospital took a few drops of blood from each of their four newborn children for routine genetic testing. But then they discovered that the state had kept the dried blood samples ever since -- and was making them available to scientists for medical research.

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arclein

By the end of this century then, a mere 90 years from now, we'll need to have an infrastructure that runs exclusively on renewably generated electricity, biofuels, and possibly nuclear energy. That's where we're going. Fortunately, there is more than enough available renewable energy to meet all of our needs, if we can harness it. Unfortunately, we're starting from a point at which less than 2% of the world's energy comes from renewables like wind, solar and geothermal.

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YouTube


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Article Image Feature Article • Global

Conventional science considers space and time to be a framework in which the drama of the universe is played out, in manifest form. The thesis of the Reciprocal System, however, is that the universe is not a universe of matter, but a universe of motion, one in which the basic reality is motion, and all entities—photons, particles, atoms, fields, forces, and all forms of energy—are merely manifestations of motion.

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www.sciencedaily.com

The image shows that proteins are created at connections between brain cells when a long-term memory is formed. Neuroscientists had suspected as much, but hadn't been able to see it happening until now.

The experiment also revealed some surprising aspects of memory formation, which remains a somewhat mysterious process.

 

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arclein

As a result of stronger winds caused by global warming, seeds and pollen are being carried over longer distances. An increase in temperature of only a couple of degrees may increase the dispersal of plants in Northern forests and the spread of plant species into forest clearings after felling or forest fires.

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Washington Post

All of Earth's people, according to a new analysis of the genomes of 53 populations, fall into just three genetic groups. They are the products of the first and most important journey our species made -- the walk out of Africa about 70,000 years ago by a small fraction of ancestral Homo sapiens.

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arclein

The maximum size vehicle weighs 45 tonnes gross, and carries 175 passengers, three and two abreast. Minimum headway at 500 km/h is 20 seconds, which permits a maximum single vehicle operation capacity of 25,000 seats/hour in each direction, as compared to about 10,000 for light rail and about 3,000 for a highway lane. With headways of 60 seconds in keeping with current state-of-the-art automatic controllers, three coupled intercity vehicles would be used to achieve the 25,000 seats/hour intercity capacity.

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YAHOO Live Science

Transmission of an infectious superbug from dogs and cats to humans, and back again, is an increasing problem, a new study finds. The superbug, a strain of bacteria known as MRSA, has evolved a resistance to antibiotics. It has long plagued hospitals but in recent years has become more common in homes. MRSA has even invaded beaches. Only about two years ago, scientists began to seriously suspect pets were transmitting the bacteria

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arclein

DNA may contain the blueprint for life but it takes proteins to read the plan and build an organism. The mechanism of this vital biological process has remained a mystery but now researchers in France are proposing a physical model wherein individual proteins can “slide” freely along DNA strands in search of target sequences.

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LiveScience

Collaborators at Colorado State Univ. realized there was something wrong with the original equation when they used it to calculate the weight of living animals, such as elephants, and found that it drastically overestimated their mass.

The scientists devised a new statistical model that can more accurately predict the mass of an animal based on the width of its bones.

 

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arclein

Bismuth Telluride allows electrons on its surface to travel with no loss of energy at room temperatures and can be fabricated using existing semiconductor technologies. Such material could provide a leap in microchip speeds, and even become the bedrock of an entirely new kind of computing industry based on spintronics, the next evolution of electronics

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arclein

Of the reactors covered here: The Chinese HTR-PM (250 MWe) is scheduled to begin construction in September of this year and is to be completed in 2013. The Hyperion Power Generation company has customer orders and is planning to have their first hot tub size uranium hydride reactors (27MWe) built in 2013. The Russians have built reactors like the SVBR (75/100 MWe) metal breeder reactor for their submarines. The SVBR reactor project is funded and should have a pilot reactor for 2020. These first three reactors would likely also be the lowest cost reactors of the ones proposed here. The funding and commitment to build those reactors seems to be the strongest. China and Russia will build those reactors for internal use. Hyperion Power Generation's uranium hydride reactor seems simple enough and they have convinced customers to buy it if they build it and can meet what they are claiming

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Live Science

The most primitive dinosaurs in the famous theropod group (that later included Tyrannosaurus rex) had five "fingers." Later theropods had three, just like the birds that evolved from them. But which digits? The theropod and bird digits failed to match up if you number the digits from 1 to 5 starting with the thumb. Theropods looked like they had digits 1, 2 and 3, while birds have digits 2, 3 and 4.

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arclein

Nanocomp’s fundamental breakthrough is its patent-pending method for high-volume production of very long CNTs (approximately one millimeter in length), and then processing the nanotubes into contiguous macrostructures. Over the past 18 months, the company has been distributing CNT yarn into the marketplace, recently delivering the 10 kilometer shipment to meet its customer’s volume and performance specifications.

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arclein

The researchers show experimentally that the rate of creep is logarithmic, which means slowing creep increases durability exponentially. They demonstrate mathematically that creep can be slowed by a rate of 2.6. That would have a truly remarkable effect on durability: a containment vessel for nuclear waste built to last 100 years with today's concrete could last up to 16,000 years if made with an ultra-high-density (UHD) concrete.

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