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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

AI and symmetry speed design of sound-absorbing fabrics

Woven textiles can do more than provide softness and strength. Their microscopic arrangement of yarns can also influence how sound travels through a material. However, finding suitable over-and-under yarn patterns is a difficult ...

Engineering

Metal alloys defy the deep freeze, staying tough at -253°C

Scientists have discovered a class of metal that can unexpectedly resist extreme cold using an unusual mechanism. Normally such temperatures would make similar materials brittle and vulnerable to breaking. The findings, published ...

Computer Sciences

Can AI understand space, time and pain?

Artificial intelligence can do remarkable things, but how much does it actually understand about the world? Researchers have found that surprisingly specific information can be extracted from the inner workings of large language ...

Machine learning & AI

How artificial neural networks build their own learning machinery

As artificial intelligence becomes more powerful, its ability to handle humanlike tasks is undeniable. Artificial neural networks can learn to recognize images, use language or write computer code. Like the brain's circuits, ...

Security

Anthropic warns of AI 'worms' spreading across smart gadgets

Small artificial intelligence models may be only months away from being able to behave like a computer worm, copying themselves from one internet-connected gadget to the next without human help, Anthropic said.

Electronics & Semiconductors

Tiny droplets form soft networks for brain-inspired computing

Inside the human brain, billions of individual neurons connect to form a vast network capable of rapidly processing information and electrical signals. A team of researchers and engineers at Penn State is taking inspiration ...