Monday, October 12, 2015

Science X Newsletter Week 41

Dear Reader ,

Here is your customized Phys.org Newsletter for week 41:

Scientists convert harmful algal blooms into high-performance battery electrodes

Last August, the seasonal harmful algal blooms (HABs) in Lake Erie grew so extreme that they poisoned the water system in Toledo, Ohio, leaving nearly half a million residents without drinking water. But a few researchers at the time collected some of the toxic HABs, and have now shown that, by heating them at temperatures of 700-1000 °C in argon gas, the HABs can be converted into a material called "hard carbon" that can be used as high-capacity, low-cost electrodes for sodium-ion (Na-ion) batteries.

AI machine achieves IQ test score of young child

Some people might find it enough reason to worry; others, enough reason to be upbeat about what we can achieve in computer science; all await the next chapters in artificial intelligence to see what more a machine can do to mimic human intelligence. We already saw what machines can do in arithmetic, chess and pattern recognition.

Crucial hurdle overcome in quantum computing

The significant advance, by a team at the University of New South Wales (UNSW) in Sydney appears today in the international journal Nature.

Light introduces multi-aperture computational camera

Hold it right there. Say cheese or, more appropriately, wow. The L16 is a small camera that enables professional-quality photos.

Unique structures spotted around nearby star: Mysterious ripples found racing through planet-forming disc

Using images from the NASA/ESA Hubble Space Telescope and ESO's Very Large Telescope, astronomers have discovered never-before-seen structures within a dusty disc surrounding a nearby star. The fast-moving wave-like features in the disc of the star AU Microscopii are unlike anything ever observed, or even predicted, before now. The origin and nature of these features present a new mystery for astronomers to explore. The results are published in the journal Nature on 8 October 2015.

Popular antioxidant seems to spread skin cancer cells in mouse research

A man-made antioxidant appears to accelerate the spread of skin cancer in mice, raising questions about its safety in humans, researchers say.

Perfectly accurate clocks turn out to be impossible

Can the passage of time be measured precisely, always and everywhere? The answer will upset many watchmakers. A team of physicists from the universities of Warsaw and Nottingham have just shown that when we are dealing with very large accelerations, no clock will actually be able to show the real passage of time, known as "proper time".

Researchers find a new way to weigh a star

Researchers from the University of Southampton have developed a new method for measuring the mass of pulsars – highly magnetised rotating neutron stars formed from the remains of massive stars after they explode into supernovae.

Nobel Prize for missing piece in neutrino mass puzzle (Update)

Two scientists won the Nobel Prize in physics Tuesday for key discoveries about a cosmic particle that whizzes through space at nearly the speed of light, passing easily through Earth and even your body.

The topolariton, a new half-matter, half-light particle

A new type of "quasiparticle" theorized by Caltech's Gil Refael, a professor of theoretical physics and condensed matter theory, could help improve the efficiency of a wide range of photonic devices—technologies, such as optical amplifiers, solar photovoltaic cells, and even barcode scanners, which create, manipulate, or detect light.

Discovery about new battery overturns decades of false assumptions

New findings at Oregon State University have overturned a scientific dogma that stood for decades, by showing that potassium can work with graphite in a potassium-ion battery - a discovery that could pose a challenge and sustainable alternative to the widely-used lithium-ion battery.

Researchers massively edit the genome of pigs to turn them into perfect human organ donors

(Phys.org)—One benefit of the closeness between pigs and humans is the potential to be organ donors. There are however, just a few nagging uncertainties that still stand in the way. The big one, the possibility of porcine endogenous retroviruses (PERVs) getting reactivated inside the human organ recipient, is no longer the concern it once was. That comes thanks to the recent groundbreaking work of the one-man army of genetics, George Church, and his lab at Harvard. The latest news, just reported in Nature, is that the group was able to use CRISPR gene-editing techniques to inactivate 62 PERVs in pig embryos.

New study indicates Earth's inner core was formed 1 - 1.5 billion years ago

There have been many estimates for when the earth's inner core was formed, but scientists from the University of Liverpool have used new data which indicates that the Earth's inner core was formed 1 - 1.5 billion years ago as it "froze" from the surrounding molten iron outer core.

Blue skies, frozen water detected on Pluto

Pluto has blue skies and patches of frozen water, according to the latest data out Thursday from NASA's unmanned New Horizons probe, which made a historic flyby of the dwarf planet in July.

Wet paleoclimate of Mars revealed by ancient lakes at Gale Crater

We have heard the Mars exploration mantra for more than a decade: follow the water. In a new paper published October 9, 2015, in the journal Science, the Mars Science Laboratory (MSL) team presents recent results of its quest to not just follow the water but to understand where it came from, and how long it lasted on the surface of Mars so long ago.

Training by repetition actually prevents learning for those with autism

Individuals with autism spectrum disorder (ASD) sometimes acquire a new behavior or skill only in a specific context, but they have difficulty transferring that learned skill or information to a new context.

Discovery of how environmental memories may be transmitted from a father to his grandchildren

If you have diabetes, or cancer or even heart problems, maybe you should blame it on your dad's behaviour or environment. Or even your grandfather's. That's because, in recent years, scientists have shown that, before his offspring are even conceived, a father's life experiences involving food, drugs, exposure to toxic products and even stress can affect the development and health not only of his children, but even of his grandchildren.

Scientists paint quantum electronics with beams of light

A team of scientists from the University of Chicago and the Pennsylvania State University have accidentally discovered a new way of using light to draw and erase quantum-mechanical circuits in a unique class of materials called topological insulators.

Ancient rocks record first evidence for photosynthesis that made oxygen

A new study shows that iron-bearing rocks that formed at the ocean floor 3.2 billion years ago carry unmistakable evidence of oxygen. The only logical source for that oxygen is the earliest known example of photosynthesis by living organisms, say University of Wisconsin-Madison geoscientists.

What are white holes?

Black holes are created when stars die catastrophically in a supernova. So what in the universe is a white hole?


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