Category Technology/Electronics

Novel film manufacturing technique lets robots walk on water

Novel film manufacturing technique lets robots walk on water
Application demonstrations of on-liquid walkable devices. Credit: Science Advances (2025). DOI: 10.1126/sciadv.ady9840

Imagine tiny robots zipping across the surface of a lake to check water quality or searching for people in flooded areas. This technology is moving closer to reality thanks to work by researchers at the University of Virginia’s School of Engineering and Applied Science. Inspired by nature and insects such as water striders that walk on water, they created two prototype devices that can propel themselves across liquid surfaces.

The first, called HydroFlexor, paddles across a surface using fin-like motions. The second, named HydroBuckler, “walks” forward with a buckling motion that mimics the water-walking insects...

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Physicists set record with 6,100-qubit array

A chamber holding the 6,100 laser-trapped atoms in an ultra-high vacuum.Credit: Caltech/Lance Hayashida

Quantum computers will need large numbers of qubits to tackle challenging problems in physics, chemistry, and beyond. Unlike classical bits, qubits can exist in two states at once—a phenomenon called superposition. This quirk of quantum physics gives quantum computers the potential to perform certain complex calculations better than their classical counterparts, but it also means the qubits are fragile. To compensate, researchers are building quantum computers with extra, redundant qubits to correct any errors. That is why robust quantum computers will require hundreds of thousands of qubits.

Now, in a step toward this vision, Caltech physicists have created the largest qubit ar...

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Compact phononic circuits guide sound at gigahertz frequencies for chip-scale devices

Compact and reconfigurable phononic circuits that operate at gigahertz frequencies
Topological phononic chip platform. a, Illustration of integrated devices that use topologically protected sound waves, including a phonon pump, an edge-waveguide, and an intensity modulator. b, Top: cross-section of the GaN-on-sapphire waveguide, showing its width (w) and thickness (h). Bottom: simulated vibration pattern of the main guided sound wave. c, Electron microscope image of the aluminum transducer used to generate 1.5 GHz phonons. d, Photo of the fabricated topological phononic chip. e, Diagram of the experimental setup, combining a custom optical vibrometer with a motorized stage to map how sound waves travel in the chip. Credit: Xu et al

Compact phononic circuits guide sound at gigahertz frequencies for chip-scale devices

Phononic circuits are emerging devices that can ...

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Google’s top AI scientist says ‘learning how to learn’ will be next generation’s most needed skill

Google's top AI scientist says ‘learning how to learn’ will be next generation's most needed skill
Demis Hassabis, CEO of Google’s artificial intelligence research company DeepMind, right, and Greece’s Prime Minister Kyriakos Mitsotakis discuss the future of AI, ethics and democracy during an event at the Odeon of Herodes Atticus, in Athens, Greece, Friday, Sept. 12, 2025. Credit: AP Photo/Thanassis Stavrakis

A top Google scientist and 2024 Nobel laureate said Friday that the most important skill for the next generation will be “learning how to learn” to keep pace with change as Artificial Intelligence transforms education and the workplace.

Speaking at an ancient Roman theater at the foot of the Acropolis in Athens, Demis Hassabis, CEO of Google’s DeepMind, said rapid technological change demands a new approach to learning and skill development.

“It’s very hard to predict the...

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