Science X Newsletter Week 10

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Here is your customized Science X Newsletter for week 10:

	More evidence of sound waves carrying mass A trio of researchers at Columbia University has found more evidence showing that sound waves carry mass. In their paper published in the journal Physical Review Letters, Angelo Esposito, Rafael Krichevsky and Alberto Nicolis describe using effective field theory techniques to confirm the results found by a team last year attempting to measure mass carried by sound waves.
	Researchers develop 'acoustic metamaterial' that cancels sound Boston University researchers, Xin Zhang, a professor at the College of Engineering, and Reza Ghaffarivardavagh, a Ph.D. student in the Department of Mechanical Engineering, released a paper in Physical Review B demonstrating it's possible to silence noise using an open, ringlike structure, created to mathematically perfect specifications, for cutting out sounds while maintaining airflow.
	Welding breakthrough could transform manufacturing Scientists from Heriot-Watt University have welded glass and metal together using an ultrafast laser system, in a breakthrough for the manufacturing industry.
	Asteroids are stronger, harder to destroy than previously thought A popular theme in the movies is that of an incoming asteroid that could extinguish life on the planet, and our heroes are launched into space to blow it up. But incoming asteroids may be harder to break than scientists previously thought, finds a Johns Hopkins study that used a new understanding of rock fracture and a new computer modeling method to simulate asteroid collisions.
	The science of knitting, unpicked Dating back more than 3,000 years, knitting is an ancient form of manufacturing, but Elisabetta Matsumoto of the Georgia Institute of Technology in Atlanta believes that understanding how stitch types govern shape and stretchiness will be invaluable for designing new "tunable" materials. For instance, tissuelike flexible material could be manufactured to replace biological tissues, such as torn ligaments, with stretchiness and sizing personalized to fit each individual.
	NASA captures unprecedented images of supersonic shockwaves NASA has captured unprecedented photos of the interaction of shockwaves from two supersonic aircraft, part of its research into developing planes that can fly faster than sound without thunderous "sonic booms".
	Our brains reveal our choices before we're even aware of them, study finds A new UNSW study suggests we have less control over our personal choices than we think, and that unconscious brain activity determines our choices well before we are aware of them.
	Study confirms horseshoe crabs are really relatives of spiders, scorpions Blue-blooded and armored with 10 spindly legs, horseshoe crabs have perhaps always seemed a bit out of place.
	Physicists discover surprisingly complex states emerging out of simple synchronized networks Fireflies, heart cells, clocks, and power grids all do it—they can spontaneously sync up, sending signals out in unison. For centuries, scientists have been perplexed by this self-organizing behavior, coming up with theories and experiments that make up the science of sync. But despite progress being made in the field, mysteries still persist—in particular how networks of completely identical elements can fall out of sync.
	Israel's first spacecraft to moon sends selfie An Israeli spacecraft on its maiden mission to the moon has sent its first selfie back to Earth, mission chiefs said on Tuesday.
	Hubble's dazzling display of two colliding galaxies Located in the constellation of Hercules, about 230 million light-years away, NGC 6052 is a pair of colliding galaxies. They were first discovered in 1784 by William Herschel and were originally classified as a single irregular galaxy because of their odd shape. However, we now know that NGC 6052 actually consists of two galaxies that are in the process of colliding. This particular image of NGC 6052 was taken using the Wide Field Camera 3 on the NASA/ESA Hubble Space Telescope.
	Sleep increases chromosome dynamics that clear out DNA damage accumulated during waking hours Why do animals sleep? Why do humans "waste" a third time of their lives sleeping? Throughout evolution, sleep has remained universal and essential to all organisms with a nervous system, including invertebrates such as flies, worms, and even jellyfish. But the reason that animals sleep, even despite the continuous threat of predators, remains a mystery, and is considered among the most important unanswered questions in life sciences.
	CERN lab on the hunt for dark matter Europe's physics lab CERN on Tuesday said it was planning a new experiment to look for particles associated with dark matter which is believed to make up some 27 percent of the universe.
	Antibiotic resistance is spreading from wastewater treatment plants The products of wastewater treatment have been found to contain trace amounts of antibiotic resistant DNA. These products are often reintroduced to the environment and water supply, potentially resulting in the spread of antibiotic resistance. As such, researchers at the University of Southern California Viterbi School of Engineering have been studying the development of these potentially harmful and dangerous genes in wastewater treatment processes. Their findings, published in Environmental Science & Technology, indicate that even low concentrations of just a single type of antibiotic leads to resistance to multiple classes of antibiotics.
	The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive The force is strong not only in Star Wars lore but also as a fundamental property in physics. For example, scientists can put two uncharged metal plates close together in a vacuum, and "voila!" —-they will attract each other like Luke Skywalker and his trusted lightsaber.
	Three ways studying organic chemistry changes the brain Academic learning is about gaining new knowledge and skill, but only recently has it been possible to see new knowledge appear in a human brain.
	Biologists experimentally trigger adaptive radiation When naturalist Charles Darwin stepped onto the Galapagos Islands in 1835, he encountered a bird that sparked a revolutionary theory on how new species originate. From island to island, finches had wildly varied beak designs that reflected their varied diets. The so-called Darwin's finches are an emblem of adaptive radiation, which describes when organisms from a single lineage evolve different adaptations in response to competitors or predators.
	Improving solar cell efficiency with a bucket of water Looking at your cell phone, you realize the battery is low, which means you have to make another long walk into town to pay money to charge the device. By the time you get home, it's getting dark. You light the kerosene lamp that casts a dim glow across the room. A significant amount of your income is burned by the lamp, and it emits noxious gases. Breathing the same air as your burning lamp can be equivalent to smoking several packs of cigarettes a day.
	Can entangled qubits be used to probe black holes? (Update) Physicists have used a seven-qubit quantum computer to simulate the scrambling of information inside a black hole, heralding a future in which entangled quantum bits might be used to probe the mysterious interiors of these bizarre objects.
	Rethinking old-growth forests using lichens as an indicator of conservation value Two Canadian biologists are proposing a better way to assess the conservation value of old-growth forests in North America—using lichens, sensitive bioindicators of environmental change.

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