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Energy & Green Tech

Redesigning batteries for ultrafast-charging EVs

It's hard to ignore the difference: You can fill a car's tank with gas in mere minutes. Charging the battery of an electric vehicle (EV) can take 30 minutes or more.

Energy & Green Tech

New coating approach aligns molecules upright to boost organic solar cell efficiency

Solar cells, devices that can convert sunlight into electricity, are now widely used in many countries worldwide. While most cells on the market today are primarily made of silicon, energy engineers have been exploring the ...

Energy & Green Tech

Robot platform combines AI and rapid imaging to improve perovskite solar cell fabrication

Solar cells generate electricity by absorbing sunlight in a thin layer of perovskite, a light-absorbing material. This layer is made with a liquid solution that dries and crystallizes into a solid film, but small changes ...

Engineering

Infrared-transparent aerogel boosts performance of subambient daytime radiative cooling materials by up to 5.2°C

As global warming continues, people tend to switch on fans or air conditioners during hot weather. But the more we use electrical appliances, the more energy we consume and carbon dioxide we produce. With continuous breakthroughs ...

Technology news

Engineering

Mystery of 60-second fluctuations in power grids solved

TenneT Germany, the largest transmission system operator in Germany, has observed over several years that the frequency in the European power grid dips briefly every 60 seconds. While these deviations were not critical to ...

Internet

Thousands of deceptive ads evade Google's safeguards

Thousands of deceptive advertisements have slipped through Google's advertising safeguards, exposing internet users to fake virus warnings, misleading software promises and potentially dangerous downloads, according to new ...

Robotics

Soft exosuit makes it easier to stand up

Getting up from a chair is something most of us don't think about. The movement is almost second nature: Our legs and hips work together in a precise sequence. But performing this task can be difficult for older people, often ...

Electronics & Semiconductors

Electronic skin lets users 'see' touch instantly

Researchers from the National University of Singapore (NUS) have developed a next-generation electronic skin that can sense and directly visualize pressure in real time, addressing key limitations of current wearable sensing ...