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Our top picks: Best lightweight Sony speaker SRS-XB100 wireless portable speaker $48 at Amazon (save

Shares of PayPal Holdings fell nearly 9% in premarket trading on Thursday after the digital payments firm reported

The rules for donating blood have recently changed.

Here's a piece of good, universal advice: Don't share confidential information with an AI chatbot.

China’s foreign minister has met Tesla CEO Elon Musk and said U.S.-Chinese relations require “mutual respect” while touting the promise of the country’s electric vehicle industry

Scientists have built a breakthrough device that can clean dirty water and turn it into clean hydrogen fuel. The “simple” device could be used in areas without resources or places where people live off the grid. And it is just one example of the many solutions that will be required to respond to pollution and give people access to both clean fuel and water, the researchers behind it say. The system is inspired by photosynthesis, the process where plants turn light into food. But previous versions of those “artificial leaves” have required clean water sources – whereas the new device can be used with polluted water and even produce clean drinking water at the same time. As such, scientists believe that it could help solve two problems at once: making green fuel and cleaning water so that it is ready to drink. “Bringing together solar fuels production and water purification in a single device is tricky,” said Chanon Pornrungroj from the University of Cambridge, the paper’s co-lead author. “Solar-driven water splitting, where water molecules are broken down into hydrogen and oxygen, need to start with totally pure water because any contaminants can poison the catalyst or cause unwanted chemical side-reactions.” The system uses a carbon mesh to absorb light and heat, creating water favour that is then turned into hydrogen for fuel by a photocatalyst. That carbon mesh also repels water, so that the system can float and its important parts can be kept from being damaged by water. The device is also able to harness more of the Sun’s energy than previous examples, which have used only a small portion of the spectrum of light. The new system has a white layer on top to absorb UV rays, with the rest being used lower down to vaporise the water. “This way, we’re making better use of the light – we get the vapour for hydrogen production, and the rest is water vapour,” said Dr Pornrungroj. “This way, we’re truly mimicking a real leaf, since we’ve now been able to incorporate the process of transpiration.” The researchers behind the breakthrough noted that the system was simple to make, and was especially able to deal with very polluted water. As such, it could be a key way of working towards a sustainable future, they said – even though it is just a proof of concept for now. “The climate crisis and issues around pollution and health are closely related, and developing an approach that could help address both would be a game-changer for so many people,” said Cambridge’s Erwin Reisner, who led the work. The device is described in a new paper, ‘Hybrid photothermal-photocatalyst sheets for solar-driven overall water splitting coupled to water purification’, published in Nature Water today. Read More First carbon capture plant opens in the US to help avoid climate catastrophe Breakthrough solar system outperforms military-grade diesel generator Solar panel world record smashed with ‘miracle material’

Nvidia Corp soared to a trillion-dollar market value on Tuesday as shares continued to surge after a bumper

Traditional medical imaging -- used to diagnose, monitor or treat certain medical conditions -- has long struggled to get clear pictures of patients with dark skin, according to experts.

HOUSTON--(BUSINESS WIRE)--Aug 23, 2023--

COLORADO SPRINGS, Colo.--(BUSINESS WIRE)--May 10, 2023--

An AI version of Kendall Jenner is going viral after it was launched by Meta as part of Instagram introducing the future of technology on the app. Known as 'Billie' (@yoursisbillie), it's thought the Keeping Up With The Kardashians star was paid 'millions' to lend her face and voice to the account, which offers advice to fans - and it's near-impossible to tell it's not real. "I don't like this, I don't like where the world is heading, I'm not gonna support this," one terrified user wrote in the comments. Sign up to our free Indy100 weekly newsletter