science wire

Study: Life cycle cost analysis of LED retrofit and luminaire replacements for four-foot T8 troffers LED lighting is up to 44% more efficient than 4-foot fluorescent tubes, according to a University of Michigan study.

Colliding pieces of space debris emit electric signals that could help track small debris littering Earth's orbit, potentially saving satellites and spacecraft Study: "The Emission of Nonthermal Electromagnetic Radiation by Colliding Space Debris- ( IOC SINTRA session on Dec. 5 at 3 p.m. CST) Satellite and spacecraft operators may finally be able to detect small pieces of debris orbiting Earth using an approach proposed by researchers from the University of Michigan.

Participating JHU labs were able to lower their energy use by a collective 1,202 kWh per day, the equivalent of the energy needed to power 39 single family homes More than 1,500 ultra-low temperature lab freezers are maintained across Baltimore by Johns Hopkins University.

Lasers have become relatively commonplace in everyday life, but they have many uses outside of providing light shows at raves and scanning barcodes on groceries. Lasers are also of great importance in telecommunications and computing as well as biology, chemistry, and physics research. In those latter applications, lasers that can emit extremely short pulses-those on the order of one-trillionth of a second (one picosecond) or shorter-are especially useful.

Researchers at Imperial are analysing the reasons people don't get their gadgets repaired, and suggesting measures to change their minds. Repairing broken household electrical devices rather than throwing them away has all kinds of environmental benefits. There is less waste, obviously, but you also save all the energy, materials and emissions involved in making a replacement, to say nothing of the emissions and congestion involved in transporting it to the consumer.

Public awareness is needed to tackle the rapidly growing problem of electronics waste - and the outlook is stark if it's ignored - according to an e-waste expert from the University of Southampton.

The European Space Agency (ESA) has funded a new mission concept involving a "swarm" of satellites to tackle the growing threat of space debris.

Imperial College London is leading the UK arm of a global effort to create 100% renewable energy power grids worldwide.

People across Kenya were mysteriously plunged into darkness last month as the country suffered its worst power outage in a generation - except for a tiny remote village.

Johns Hopkins researchers join push for 100% renewable energy power grids Funded by the NSF, the new Electric Power Innovation for a Carbon-free Society center will collaborate with international par

Researchers at MESA+ Institute for Nanotechnology developed a tool that can measure the size of a plasma source and the colour of the light it emits simultaneously.

Materials that can conduct electricity without resistance and thus without loss - so-called superconductors - promise a wide range of modern applications - from nuclear spin tomographs to high-precisi

"Lightning" system connects photons to the electronic components of computers using a novel abstraction, creating the first photonic computing prototype to serve real-time machine-learning inference requests. Close Computing is at an inflection point. Moore's Law, which predicts that the number of transistors on an electronic chip will double each year, is slowing down due to the physical limits of fitting more transistors on affordable microchips.

Lincoln Laboratory hosts students enrolled in the Massachusetts Microelectronics Internship Program, aimed at training a new generation of microelectronics leaders.

New communication and automation technologies help society to become smarter and more sustainable but there has been evidence that the electromagnetic interference they create can possibly cause deadly accidents. Little is known on how to avoid or control this electromagnetic interference propagating within modern complex systems therefore the training of researchers in these electromagnetic effects and mitigations is required.

MIT Energy Initiative spinoff Waya Energy helps countries work toward universal access to electricity.

By Birgit Baustädter Herwig Renner and Daniel Herbst are conducting research into the Austrian electrical energy system at TU Graz and explain in an interview whether our electricity grids are ready for electromobility.

Flicking lights or swiping wipers could one day add extra security to vehicles Skyrocketing vehicle theft rates in some U.S. cities have drawn attention to an inconvenient truth: the in

New soft-bodied robots that can be controlled by a simple magnetic field are well suited to work in confined spaces. MIT scientists have developed tiny, soft-bodied robots that can be controlled with a weak magnet. The robots, formed from rubbery magnetic spirals, can be programmed to walk, crawl, swim - all in response to a simple, easy-to-apply magnetic field.

The Energy Economics Group at the Vienna University of Technology is conducting research into how the energy transition can succeed.

The Energy Economics Group at TU Wien is researching how the energy transition can succeed. It will not be easy, but Prof. Reinhard Haas is generally optimistic about the future.

By Falko Schoklitsch In the form of "FlyGrid", a project team led by TU Graz presents the prototype of a flywheel storage system that can store electricity locally and deliver it using fast-charging technology.

Technology demonstrations show the machine's major components achieve the required performance. Aviation's huge carbon footprint could shrink significantly with electrification.

Gabriela Hug - an expert in power transmission networks - argues that securing an affordable energy supply from renewable sources is not a utopian ideal for Switzerland, but rather a practical and feasible necessity.

A space solar power prototype that was launched into orbit in January is operational and has demonstrated its ability to wirelessly transmit power in space and to beam detectable power to Earth for the first time.

FlexBoard is a flexible breadboard that enables rapid prototyping of objects with interactive sensors, actuators, and displays on curved and deformable surfaces. Whether you are a new employee, a gymnast, or a bendy straw manufacturer, one trait is ideal across the board: flexibility. The same can now be said about prototyping electronic devices.

The plan will keep Voyager 2's science instruments turned on a few years longer than previously anticipated, enabling yet more revelations from interstellar space.

Researchers demonstrate a low-power "wake-up" receiver one-tenth the size of other devices. Scientists are striving to develop ever-smaller internet-of-things devices, like sensors tinier than a fingertip that could make nearly any object trackable. These diminutive sensors have miniscule batteries which are often nearly impossible to replace, so engineers incorporate wake-up receivers that keep devices in low-power "sleep" mode when not in use, preserving battery life.

Simulating solar flares on a scale the size of a banana, researchers at Caltech have parsed out the process by which these massive explosions blast potentially harmful energetic particles and X-rays into the cosmos. Corona loops are arches of plasma that protrude from the surface of the sun, aligned along magnetic field lines.

University of Twente is continually working to make the organisation more sustainable. It is our mission to respond to societal needs by developing sustainable, proactive measures to support our planet and the people who live on it.

Integrating a new ferroelectric semiconductor, it paves the way for single amplifiers that can do the work of multiple conventional amplifiers, among other possibilities Study: Fully epitaxial, monolithic ScAlN/AlGaN/GaN ferroelectric HEMT (DOI: 10. One month after announcing a ferroelectric semiconductor at the nanoscale thinness required for modern computing components, a team at the University of Michigan has demonstrated a reconfigurable transistor using that material.

Silicon carbide is expensive and its production is extremely energy-intensive, but it is indispensable for many applications.

Investment in electrical transmission and distribution (T&D) systems could significantly reduce air pollution, according to a study led Lauren Janicke , an undergraduate in civil and environmenta

As devices get smaller and more powerful, the risk of overheating and burning out increases substantially.

Delft Hyperloop, a dreamteam of 41 TU Delft students, presented their latest design Helios II on 16 February at the Kunsthal Rotterdam.

Delft Hyperloop, a dreamteam of 41 TU Delft students, presented their latest design Helios II on 16 February at the Kunsthal Rotterdam.

Society's growing demand for high-voltage electrical technologies - including pulsed power systems, cars and electrified aircraft, and renewable energy applications - requires a new generation of cap