Scientists Find Way to Make Energy from Air Using Nearly Any Material – Slashdot

The air-powered generator, known as an “Air-gen,” would offer continuous clean electricity since it uses the energy from humidity, which is always present, rather than depending on the sun or wind… The device, the size of a fingernail and thinner than a single hair, is dotted with tiny holes known as nanopores. The holes have a diameter smaller than 100 nanometers, or less than a thousandth of the width of a strand of human hair. The tiny holes allow the water in the air to pass through in a way that would create a charge imbalance in the upper and lower parts of the device, effectively creating a battery that runs continuously. “We are opening up a wide door for harvesting clean electricity from thin air,” Xiaomeng Liu, another author and a UMass engineering graduate student, said in a statement.
— Read on m.slashdot.org/story/414883

TikTok Tracks You Across the Web, Even If You Don’t Use the App – Slashdot

If you go to the United Methodist Church’s main website, TikTok hears about it. Interested in joining Weight Watchers? TikTok finds that out, too. The Arizona Department of Economic Security tells TikTok when you view pages concerned with domestic violence or food assistance. Even Planned Parenthood uses the trackers, automatically notifying TikTok about every person who goes to its website, though it doesn’t share information from the pages where you can book an appointment. (None of those groups responded to requests for comment.) The number of TikTok trackers we saw was just a fraction of those we observed from Google and Meta. However, TikTok’s advertising business is exploding, and experts say the data collection will probably grow along with it.

— Read on m.slashdot.org/story/405399

Blog at WordPress.com.

Up ↑