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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

Electrolyte redesign unlocks tin's full charge capacity for flow batteries

Tin is able to exchange four electrons as it changes between dissolved ions and solid metal, but acidic tin batteries commonly use only a two-electron reaction, leaving half that potential charge out of reach. Now, researchers ...

Robotics

Robot moth grows a UV sensor by using an artificial circulatory system

A moth-shaped robot used an artificial circulatory system to deliver chemical building blocks through its body and grow a light sensor where UV light struck.

Robotics

Fast Feature Field: The missing link between event cameras and robot vision

For decades, event cameras, which emulate the biological retina by continuously monitoring changes in light intensity, have promised to revolutionize how robots perceive the world by allowing them to react faster and operate ...

Technology news

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 ...

Computer Sciences

Improving AI-generated images, pixel by pixel

If you have ever used an artificial intelligence text-to-image generator like ChatGPT or Google Gemini, you may have encountered a common but maddening problem: The image looks nearly perfect, but when you ask the AI to fix ...

Electronics & Semiconductors

Titanium boosts thermoelectric performance of thin films by 250-fold

Every electronic device, factory and vehicle generates heat that often goes to waste. What if that energy could be recovered to generate electricity using thin films manufactured without high-temperature processing? Researchers ...

Engineering

Ultrasound creates a tube that guides matter through the air

A small stream of liquid flows quietly in midair, horizontally, as if inside an invisible tube. Nothing touches it. About 5 centimeters (2 inches) away, a cylinder lined with hundreds of tiny speakers surrounds the stream, ...

Robotics

Secret trigger words could make AI-powered robots dangerous

Large language models (LLMs) like OpenAI's ChatGPT, Anthropic's Claude and Google Gemini are increasingly being used to help robots perform tasks, but what if LLMs could be exploited to turn helpful robots into harmful robots?

Machine learning & AI

Brain-inspired randomness makes artificial vision more reliable

Humans are usually remarkably good at recognizing objects, even under poor conditions. Artificial vision systems, by contrast, reach their limits more quickly. Researchers at the Hertie Institute for Clinical Brain Research ...

Robotics

Robot AI predicts future scenes to guide its next moves

A robot artificial intelligence (AI) system has been developed that can understand human instructions, predict what a scene will look like after an action and then carry out the task. Rather than simply translating instructions ...

Software

Your car's weakest spot may not be in the car

A car is a computer on wheels. It communicates with the car manufacturer's cloud services, the driver's phone and charging stations, and when children stream movies in the back seat, data travels over the internet. All these ...