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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.

Business

Future-proof security system protects Bitcoin Lightning Network from quantum attacks

Nearly all personal information is stored electronically in our digital age. This sensitive data is protected by digital keys unique to each device that would take today's computers billions of years to crack through brute-force ...

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

Tiny robot can precisely control its jump height

As our skies increasingly crowd with buzzing, hovering, flitting drones, spare a thought for the humble hopping robot. Hopping, a popular form of locomotion in the insect and amphibian worlds, is nearly two orders of magnitude ...

Robotics

Robot dog runs a marathon on a single battery charge

A four-legged robot that can complete a marathon on a single battery charge has been demonstrated by a team from KAIST. The robot, which completed the Sangju Marathon in South Korea in 4 hours and 19 minutes alongside human ...

Robotics

Simple visual patterns can trick AI-powered vehicles and robots

A simple pattern of black-and-white stripes could cause an autonomous vehicle or robot to misjudge how far away an obstacle is, potentially triggering an unexpected maneuver or even a collision, according to new University ...

Security

Stocking masks making a criminal comeback

You may recall the scene in the comedy Raising Arizona in which Nicolas Cage pulls a pair of pantyhose over his head before attempting, with limited success, to rob a convenience store of a pack of diapers.

Hardware

Toward physical AI: When the hardware becomes the neural network

Digital computing using silicon chips has transformed nearly every aspect of modern life and enabled the remarkable growth of artificial intelligence. But as AI models scale up, that growth comes with increasing demands for ...