Imagine being able to switch out the batteries in electric cars just like you switch out batteries in a photo camera or flashlight. Engineers in California are trying to accomplish just that, in partnership with a local San Diego engineering company. Rather than swapping out the whole battery, which is cumbersome and requires large, heavy equipment, engineers plan to swap out and recharge smaller units within the battery, known as modules.
Ever since Robert Hooke first described cells in 1665, scientists have been trying to figure out...
Building on previous research that twisted light to send data at unheard-of speeds, scientists...
Silicon has few serious competitors as the material of choice in the electronics industry. Yet transistors can’t simply keep shrinking to meet the needs of powerful, compact devices; physical limitations like energy consumption and heat dissipation are too significant. Now, using a quantum material called a correlated oxide, researchers have achieved a reversible change in electrical resistance of eight orders of magnitude.
Betavoltaics, a battery technology that generates power from radiation, has been studied as an energy source since the 1950s. Now, for the first time using a water-based solution, researchers at the Univ. of Missouri have created a long-lasting and more efficient nuclear battery that could be used for many applications such as a reliable energy source in automobiles and also in complicated applications such as space flight.
An interdisciplinary development team that includes Lockheed Martin, the Air Force Research Laboratory and the Univ. of Notre Dame has demonstrated the airworthiness of a new beam control turret being developed for DARPA to give 360-degree coverage for high-energy laser weapons operating on military aircraft. An aircraft equipped with the laser has already conducted eight test flights in Michigan.
At one o'clock in the morning, layers of warm plastic are deposited on the platform of the 3-D printer that sits on scientist Rebecca Erikson's desk. A small plastic housing, designed to fit over the end of a cell phone, begins to take shape. Pulling it from the printer, Erikson quickly pops in a tiny glass bead and checks the magnification.
The fastest land animal on Earth, the cheetah, is able to accelerate to 60 mph in just a few seconds. As it ramps up to top speed, a cheetah pumps its legs in tandem, bounding until it reaches a full gallop. Now, researchers have developed an algorithm for bounding that they’ve successfully implemented in a fully functional robotic cheetah.
The quest to create artificial “squid skin”—camouflaging metamaterials that can “see” colors and automatically blend into the background—is one step closer to reality, thanks to a breakthrough color-display technology unveiled by Rice Univ. The new full-color display technology uses aluminum nanoparticles to create the vivid red, blue and green hues found in today’s top-of-the-line LCD televisions and monitors.
In recent years, it has become possible to see directly individual atoms using electron microscopy, especially in graphene. Using electron microscopy and computer simulations, an international team has recently shown how an electron beam can move silicon atoms through the graphene lattice without causing damage.
Researchers have developed an optical method that makes individual proteins, such as the proteins characteristic of some cancers, visible. Other methods that achieve this only work if the target biomolecules have first been labeled with fluorescent tags, but this approach is very difficult. By contrast, the new method allows scientists to directly detect the scattered light of individual proteins via their shadows.
A habitual party crasher, Apple has a history of arriving late and making a big splash in various gadget categories. But can it continue with the Apple Watch? Smartwatches have been around for a few years, but makers such as Samsung and Sony have failed to make them a runaway hit. Apple's Watch won't go on sale until early 2015 and raises questions: Can the company work its magic as it has in the past?
Researchers in Sweden have shown how to use sound to communicate with an artificial atom, in this case an electric circuit that obeys quantum laws. By coupling acoustic waves to the atom, they can demonstrate phenomena from quantum physics with sound taking on the role of light.
During the six-day IMTS manufacturing technology show in Chicago this week, the “Strati” will be the first vehicle printed in one piece using direct digital manufacturing. The process will take more than 44 hours of print time. A team including Local Motors, Cincinnati Inc. and Oak Ridge National Laboratory will then rapidly assemble it for a historic first set for Saturday.
Optical circuits use light instead of electricity, making them faster and more energy-efficient than electrical systems. Scientists in Switzerland have now developed a silicon-based photonic crystal nanocavity to be used as a first building-block for photonic “transistors”. The new device requires record low energy to operate.
A team of researchers has discovered a way to cool electrons to -228 C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy. The process involves passing electrons through a quantum well to cool them and keep them from heating.
For detecting cancer, manual breast exams seem low-tech compared to other methods such as MRI. But scientists are now developing an “electronic skin” that “feels” and images small lumps that fingers can miss. Knowing the size and shape of a lump could allow for earlier identification of breast cancer, which could save lives.
Objects in space tend to spin—and spin in a way that’s totally different from the way they spin on earth. Understanding how objects are spinning, where their centers of mass are, and how their mass is distributed is crucial to any number of actual or potential space missions, from cleaning up debris in the geosynchronous orbit favored by communications satellites to landing a demolition crew on a comet.
A high-tech survey reveals that there is more to Stonehenge than meets the eye, finding previously unknown monuments. Researchers have produced digital maps of what's beneath the World Heritage Site, using ground-penetrating radar, high-resolution magnetometers and other techniques to peer deep into the soil. And they have found some surprises.
Apple is betting that people want to pay with a tap of the phone rather than a swipe of the card. The technology company on Tuesday introduced a new digital wallet service called Apple Pay that is integrated with its Passbook credential-storage app and its fingerprint ID security system. The announcement came as Apple introduced several new products including a new, larger iPhone 6 and a watch.
Rice Univ. wireless researchers have found a way to make the most of the unused UHF TV spectrum by serving up fat streams of data over wireless hotspots that could stretch for miles. In a presentation today at the Association for Computing Machinery's MobiCom 2014 conference, researchers will unveil a multiuser, multiantenna transmission scheme for UHF, a portion of the radio spectrum that is usually reserved for television broadcasts.
A Stanford Univ. engineering team has built a radio the size of an ant, a device so energy efficient that it gathers all the power it needs from the same electromagnetic waves that carry signals to its receiving antenna. Designed to compute, execute and relay commands, this tiny wireless chip costs pennies to fabricate.
Researchers at Princeton Univ. have begun crystallizing light as part of an effort to answer fundamental questions about the physics of matter. The researchers are not shining light through crystal—they are transforming light into crystal. As part of an effort to develop exotic materials such as room-temperature superconductors, the researchers have locked together photons, the basic element of light, so that they become fixed in place.
A $1.1 million National Science Foundation grant to two Rice Univ. computer science groups will allow them to build cloud computing tools to help analyze evolutionary patterns. With the three-year grant, Christopher Jermaine and Luay Nakhleh, both associate professors of computer science, will develop parallel processing tools that track the evolution of genes and genomes across species.
A team of scientists led by Carnegie's Jacqueline Faherty has discovered the first evidence of water ice clouds on an object outside of our own Solar System. Water ice clouds exist on our own gas giant planets, but have not been seen outside of the planets orbiting our Sun until now.
Technology being honed by French auto parts maker Valeo uses a dozen ultrasonic sound-wave sensors, 360-degree cameras and a laser scanner to safely park within a few centimeters of other vehicles. Then, when you're done with dinner or a business meeting, the car will return to you after another swipe of the thumb.
Engineers have created a shape-changing "soft" robot that can tread over a variety of adverse environmental conditions including snow, puddles of water, flames, and the crushing force of being run over by an automobile. The pneumatically powered, fully untethered robot was enabled by the careful selection of materials and composites, including silicone elastomer.
Dr. John Carr, a scientist at the U.S. Naval Research Laboratory, is part of an international team that has found what they believe is evidence of a planet forming around a star about 335 light years from Earth. They made the chance discovery while studying the protoplanetary disk of gas around a distant forming star using a technique called spectro-astrometry, which allows astronomers to detect small changes in the position of moving gas.
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