Earth’s oldest sedimentary rocks are not only rare, but also almost always altered by hydrothermal and tectonic activity. The Pilbara district in Australia is a rare exception. A new study has revealed the well-preserved remnants of a complex ecosystem in a nearly 3.5 billion-year-old sedimentary rock sequence.
Researchers at the Georgia Institute of Technology have recently demonstrated an integrated rhombic gridding based triboelectric nanogenerator, or “TENG”, that has been proven to be a cost-effective and robust approach for harvesting ambient environmental energy.
Twitter clips human thoughts to a mere 140 characters. Animals’ scent posts may be equally as short, relatively speaking, yet they convey an encyclopedia of information about the animals that left them. Recent research show that the detailed scent posts of hyenas are, in part, products of symbiotic bacteria, microbes that have a mutually beneficial relationship with their hosts.
When an earthquake and tsunami struck Japan’s Fukushima nuclear power plant in 2011, crews sprayed cooling seawater on the reactors, but to no avail. One possible reason: Droplets can’t land on surfaces that hot and instantly begin to evaporate, forming a thin layer of vapor and then bouncing along it. Now, MIT researchers have come up with a way to cool hot surfaces more effectively by keeping droplets from bouncing.
The Hubble Space Telescope has discovered a six-tailed asteroid in the asteroid belt between the orbits of Mars and Jupiter. Scientists say they've never seen anything like it. Incredibly, the comet-like tails change shape as the asteroid sheds dust. The streams have occurred over several months.
Two knee surgeons at University Hospitals Leuven have provided the first full anatomical description of a previously enigmatic ligament in the human knee. The ligament appears to play an important role in patients with anterior cruciate ligament (ACL) tears.
A rare, recently discovered microbe that survives on very little to eat has been found in two places on Earth: spacecraft clean rooms in Florida and South America. Some other microbes have been discovered in a spacecraft clean room and found nowhere else, but none previously had been found in two different clean rooms and nowhere else.
Researchers from Lawrence Livermore National Laboratory (LLNL) and the Swiss Federal Institute of Technology (ETH) in Zurich have developed a new method of using nanotubes to detect molecules at extremely low concentrations enabling trace detection of biological threats, explosives and drugs.
An international team of engineers has now fabricated arrays of silver nanoscale pillars that can selectively reflect light of any desired color. The team, led by Jinghua Teng and Yan Jun Liu at the A*STAR Institute of Materials Research and Engineering in Singapore, show that the color can be selected by varying the size of the pillars.
A theoretical, three-dimensional (3D) form of carbon that is metallic under ambient temperature and pressure has been discovered by an international research team. The findings, which may significantly advance carbon science, are published online this week
Playing pop and rock music improves the performance of solar cells, according to new research. The high frequencies and pitch found in pop and rock music cause vibrations that enhanced energy generation in solar cells containing a cluster of 'nanorods', leading to a 40 percent increase in efficiency of the solar cells.
In a demonstration at the Vienna Univ. of Technology in Austria, scientists have shown that light can be switched between two fiber optic cables with just a single rubidium atom. The breakthrough relies on light capture devices called “bottle resonators”. The switch could enable quantum phenomena to be used for information and communication technology.
The Toronto-based luxury bespoke tailoring house Garrison Bespoke launched the first fashion-forward bulletproof suit with a live ammo field-testing event at the Ajax Rod and Gun Club at in Ontario. The Garrison Bespoke bulletproof suit is made with carbon nanotubes created using nanotechnology and originally developed to protect U.S. forces in Iraq. The patented material is thinner, more flexible and 50% lighter than Kevlar.
Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and are not too hot or cold for life. For the first time, NASA scientists have calculated, not estimated, what percent of stars that are just like our sun have planets similar to Earth: 22%, with a margin of error of plus or minus 8 percentage points.
Researchers from the Univ. of Helsinki, FInland, have managed to draw in an alcohol-based solution using laser light. Light-sensitive polymers are not new, but a new soluble, photosensitive polymer can be dissolved partially by a 365-nm laser, allowing a ray of light can “draw” in an ethanol-based dispersion of the polymer.
Our brains have upwards of 86 billion neurons, connected by synapses that not only complete myriad logic circuits; they continuously adapt to stimuli, strengthening some connections while weakening others. Materials scientists have now created a new type of transistor that mimics the behavior of a synapse. The novel device simultaneously modulates the flow of information in a circuit and physically adapts to changing signals.
A team of researchers has discovered a bacterium in hot springs which needs rare earth materials such as lanthanum, cerium or neodymium to grow. The bacteria need the valuable metals to produce energy as co-factor for the enzyme methanol dehydrogenase, with which the microbes produce their energy. The use of rare earths is possibly more widespread among bacteria than previously thought.
Slapping a 20% tax on soda in Britain could cut the number of obese adults by about 180,000, according to a new study. Though the number works out to a modest drop of 1.3% in obesity, scientists say that reduction would still be worthwhile in the U.K., which has a population of about 63 million and is the fattest country in Western Europe. About one in four Britons is obese.
In the hugely popular game Minecraft, players can freely build and create their own world by mining and stacking different types of bricks in a sandbox-like environment. Because of its customizable dynamic, the game has also become a background platform for many user-generated modifications, or "mods". Researchers and the developers of Minecraft have built a new Google-funded mod that introduces quantum mechanics into the game's landscape.
A team of experimental and theoretical physicists from the Univ. of Stuttgart have developed a method to study the influence an electron has on atoms in a Bose-Einstein condensate, which is a ultracold cloud of atoms at near absolute zero. This advance allows scientists to study the interactions between electrons and atoms without the technical challenge of “trapping” electrons individually.
Scientists have found a planet way out in the cosmos that's close in size and content to Earth, an astronomical first. But hold off on the travel plans. This rocky world is so close to its sun that it's at least 2,000 degrees hotter than here, almost certainly too hot for life.
One of the world’s largest dinosaurs has been digitally reconstructed by experts from The Univ. of Manchester allowing it to take its first steps in over 94 million years. The Manchester team, working with scientists in Argentina, were able to laser scan a 40-m-long skeleton of the vast Cretaceous Argentinosaurus dinosaur. Then using an advanced computer modeling technique they recreated its walking and running movements.
What does the coastal community of Bolinas, Calif., have in common with the impoverished island nation of Haiti? The surprising answer is a fledgling sanitation strategy whereby human waste is composted into nutrient-rich fertilizer, all supported by research from Lawrence Berkeley National Laboratory scientist Gary Andersen.
Bee stings can be painful, and for people who are allergic to the bee’s venom, they can be deadly. But a new study from Yale School of Medicine finds that the key toxic component in bee venom—the major allergen—can actually induce immunity and protect against future allergic reactions to the toxin.
Researchers report that wood-biochar supercapacitors can produce as much power as today’s activated-carbon supercapacitors at a fraction of the cost, and with environmentally friendly byproducts. In wood-biochar supercapacitors, the wood’s natural pore structure serves as the electrode surface, eliminating the need for advanced techniques to fabricate an elaborate pore structure. Wood biochar is produced by heating wood in low oxygen.