Engineering news

Engineering

Fine-tuned perovskites make blue LEDs more vibrant

Over the past decade, perovskite LEDs have become increasingly vibrant and affordable to produce. With careful tweaks to their chemical composition, these crystal-based light emitters can be tuned across the visible spectrum—matching ...

Engineering

Shade-resistant solar cells keep 97% efficiency after 2,000‑hour stress test

It is common for solar panels to be shaded by trees, clouds, birds or buildings. For thin-film solar technologies, however, such shading can cause shaded areas to develop reverse-bias stress (negative voltage), which can ...

Engineering

New AR display tech boosts real‑world visibility while keeping virtual objects lifelike

Optical see-through augmented reality (AR) glasses are designed to overlay digital information onto the real world, but improving the realism of virtual objects often comes at a cost. Existing occlusion technologies physically ...

Engineering

3D-printed bridge points the way to greener construction

Concrete is the most widely used building material on Earth, and producing it is one of the largest single sources of carbon emissions. One promising way to reduce its environmental footprint is to 3D-print concrete, laying ...

Engineering

Scientists create interactive screens that can appear on demand

Imagine reaching for a record or glancing at a map and seeing a display bloom from a small box, offering interactive guidance—and then vanishing moments later. A new device, inspired by science fiction and designed by computer ...

Engineering

Turning pulp mills into next-generation biorefineries

Georgia's $41 billion forest products industry needs a transformation, and a Georgia Tech research team is reimagining how pulp mills use energy and what they can make from their byproduct streams. For nearly a decade, Sankar ...

Engineering

Seismic data can identify aircraft by type

Instruments typically used to detect the ground motion of earthquakes can also be used to identify the type of aircraft flying far overhead, research by University of Alaska Fairbanks scientists shows. That's because aircraft ...

Engineering

Small, inexpensive hydrophone boosts undersea signals

Researchers at MIT Lincoln Laboratory have developed a first-of-its-kind hydrophone built around a simple, commercially available microphone. The device, leveraging a common microfabrication process known as microelectromechanical ...

Robotics

Innovative underwater exoskeleton boosts diving efficiency

A research team led by Professor Wang Qining from the School of Advanced Manufacturing and Robotics, Peking University, has developed the world's first portable underwater exoskeleton system that assists divers' knee movement, ...