Much as a frame provides structural support for a house and the chassis provides strength and shape for a car, a team of engineers believes they have a way to create the structural framework for growing living tissue using an off-the-shelf 3-D printer.
Researchers have created glass that lets through a large amount of light while appearing hazy, a combination of properties that could help boost the performance of solar cells and LEDs.
The way in which electronic devices operate relies on the interaction between various materials. For this reason, researchers need to know exactly how specific chemical elements inside a computer chip or a transistor diode behave, and what happens when these elements bond. Physicists have now developed an innovative method that enables them to obtain several different types of information simultaneously from the interior of a nanoscale building block, and this while it is in the active state.
You might think that a hot object pushes atoms and molecules away due to radiation pressure. But a research team showed that for a polarizable atom, the opposite occurs: the hot object attracts it. Using an atom interferometer, they found the attraction was 20 times stronger than the gravitational attraction between a tungsten object and a cesium atom. Though negligible in most situations, next-generation gravitational wave experiments may have to take this into account.
Researchers have presented a new design that, in tests, enabled gallium nitride power devices to handle voltages of 1,200 volts. That’s already enough capacity for use in electric vehicles, but the researchers believe that further work can boost its capacity to the 3,300-to-5,000-volt range, to bring the efficiencies of gallium nitride to the power electronics in the electrical grid itself.
A printing process uses natural forces to grow an inexpensive catalyst to replace platinum to lower the cost of hydrogen-powered cars, report researchers.
Mobile phone speakers and motion detectors in cars and video games may soon be powered by electricity generated from low cost and sustainable biomaterials, according to new research.
Mobile components on buildings whose design was copied from naturally occurring solutions — that is the subject of new research. The aim is to outfit them with drive elements that can move without energy input. Serving as a model here are pine cones, which utilize the varying swelling behaviors of their tissue to open when moist or close when dry.
Smartphones and computers wouldn’t be nearly as useful without room for lots of apps, music and videos. Devices tend to store that information in two ways: through electric fields (think of a flash drive) or through magnetic fields (like a computer’s spinning hard disk). Each method has advantages and disadvantages. However, in the future, our electronics could benefit from the best of each, say researchers.
Thermochromic windows capable of converting sunlight into electricity at a high efficiency have been developed. Relying on such advanced materials as perovskites and single-walled carbon nanotubes, the new technology responds to heat by transforming from transparent to tinted. As the window darkens, it generates electricity.