'I won't trust AI': Readers share mixed reaction to AI tools that calculate people's biological ages - Live Science

A theoretical calculation estimates roughly 6 × 10⁸⁰ bits of information in selected ordinary-matter particles across the observable universe. The model applies Shannon information theory, assigning an average of 1.509 bits to the particle categories it considers. The study excludes several components and does not establish that information is a new state of matter. An electron’s mass, charge and spin help distinguish it from other particles. Those identifying properties also raise a question: could matter itself be treated as a store of information, and could its information content be counted? The calculation offers one approach to a longstanding problem, rather than a measurement of everything the universe contains. Its result depends on how information is defined, which particles are counted and assumptions about where information can reside. Dr. Melvin Vopson of the University of Portsmouth's School of Mathematics and Physics. (CREDIT: University of Portsmouth) An information count built from particle identityMeasuring an electron’s characteristic properties allows an observer to identify it.

Scientists have developed various AI tools to measure people's biological ages. Would you use one?

The spacecraft delivered materials and equipment for new research studies to the station.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.