Imagine a polymer with removable parts that can deliver something to the environment and then be chemically regenerated to function again. Or a polymer that can lift weights, contracting and expanding the way muscles do.
A Chinese ship equipped with advanced sonar equipment will soon join the search for the Malaysian airliner believed to have crashed in the southern Indian Ocean almost two years ago, an official said on Friday.
Texas A&M Univ. is hosting more than 1,000 university and high school students this weekend for the SpaceX Hyperloop Pod Competition Design Weekend, which kicked off today.
Apple is reportedly working with partners to develop technology that can help one of the company’s most popular products charge from a distance.
Around 100 million years after the Earth’s formation, the celestial body was floating in the vacuum when another planetary body smashed into it. In a computer simulation of the event, the other planetary body clips the top, sending a variety of debris hurdling into the surrounding space. The debris whirl and rotate around the Earth. Scientists are proposing the collision was more head-on than previously postulated.
Scientists at the University of Maryland have a new recipe for batteries: Bake a leaf, and add sodium. They used a carbonized oak leaf, pumped full of sodium, as a demonstration battery’s negative terminal, or anode. The scientists are trying to make a battery using sodium where most rechargeable batteries sold today use lithium. Sodium would hold more charge...
Japan unveiled its first homemade stealth plane, as it tries to catch up on the technology and enhance its reconnaissance and intelligence capabilities as China expands its own military presence in the region. The experimental X-2 is expected to make its maiden test flight in February. Defense officials said the aircraft is designed to test the stealth technology that would possibly be combined with the next-generation fighter jet.
Origami, the ancient art of paper folding, may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies, microfluidic devices whose properties can change in operation — and even heating and air-conditioning ductwork that adjusts to demand. The applications could result from reconfigurable and reprogrammable origami tubes.
In a surprising find, physicists from the United States, Germany and China have discovered that nuclear effects help bring about superconductivity in ytterbium dirhodium disilicide (YRS), one of the most-studied materials in a class of quantum critical compounds known as “heavy fermions.” The discovery marks the first time that superconductivity has been observed in YRS.
Promising new calibration tools, called laser frequency combs, could allow astronomers to take a major step in discovering and characterizing earthlike planets around other stars. These devices generate evenly spaced lines of light, much like the teeth on a comb for styling hair or the tick marks on a ruler — hence their nickname of optical rulers. The tick marks serve as stable reference points when making precision measurements.
Today, NASA remembered the seven crewmembers of STS-51L who 30 years ago boarded the Shuttle Challenger and perished following a booster engine failure. On Jan. 28, 1986, the shuttle took to the blue sky. But 73 seconds after launch, the shuttle was swallowed by a fireball and exploded into several separate sections, leaving smoky tendrils in its wake. At the time, the shuttle was traveling at Mach 1.92
Ultrasonic sensors, batteries and pressure pads are parts of the novel system that can be put on the head like a hat or headband. Decreasing or increasing pressure provides the person wearing the hat with information on the proximity of walls, passages or objects. The system, called proximity hat, measures the surroundings in real time and might help visually impaired persons orient in rooms and firemen find their way around in smoke.
Detecting individual particles of light just got a bit more precise — by 74 picoseconds to be exact—thanks to advances in materials by NIST researchers and their colleagues in fabricating superconducting nanowires. Although 74 picoseconds may not sound like much — a picosecond is a trillionth of a second — it is a big deal in the quantum world, where light particles, or photons, can carry valuable information.
New research from Griffith University’s Centre for Quantum Dynamics is broadening perspectives on time and space. Associate Professor Joan Vaccaro challenges the long-held presumption that time evolution — the incessant unfolding of the universe over time — is an elemental part of Nature. She suggests there may be a deeper origin due to a difference between the two directions of time: to the future and to the past.
The United States could slash greenhouse gas emissions from power production by up to 78 percent below 1990 levels within 15 years while meeting increased demand, according to a new study by NOAA and University of Colorado Boulder researchers. The study used a sophisticated mathematical model to evaluate future cost, demand, generation and transmission scenarios.