Lifeboat Foundation

All galaxies, no matter how big they are, rotate once every billion years, astronomers have discovered. The Earth spinning around on its axis once gives us the length of a day, and a complete orbit of the Earth around the Sun gives us a year. “It’s not Swiss watch precision. But regardless of whether a galaxy is very big or very small, if you could sit on the extreme edge of its disk as it spins, it would take you about a billion years to go all the way round,” said Gerhardt Meurer, from of the International Centre for Radio Astronomy Research (ICRAR) in Australia.

By using simple maths, you can show all galaxies of the same size have the same average interior density. “Discovering such regularity in galaxies really helps us to better understand the mechanics that make them tick — you won’t find a dense galaxy rotating quickly, while another with the same size but lower density is rotating more slowly,” Meurer said.

Researchers also found evidence of older stars existing out to the edge of galaxies. “Based on existing models, we expected to find a thin population of young stars at the very edge of the galactic disks we studied,” Meurer said.

ALBUQUERQUE, N.M. — Los Alamos-based startup Ubiquitous Quantum Dots got a $750,000 boost this week to further develop and begin deploying technology that enables windows to generate electricity.

The National Science Foundation awarded a phase II Small Business Innovation Research grant for UbiQD LLC to continue building quantum dot-tinted windows, which can harness sunlight to power everyday consumer products, and eventually entire buildings.

The NSF previously awarded a $225,000 phase I grant in 2016, allowing UbiQD to test and validate its technology at the National Renewable Energy Laboratory in Colorado.

Continue reading “Quantum dot startup wins $750,000 grant” »

The future arrived, and it’s a minivan. Waymo’s fleet of totally driverless cars in Phoenix, Arizona, now lets members of the public hail a ride around the suburbs.

The news: Waymo’s CEO, John Krafick, announced at SXSW in Austin, Texas, that the firm is offering trips to so-called “early riders”—the first people to have signed up to use its robotic Chrysler Pacifica taxis. The minivans don’t have a safety driver behind the wheel, but someone can take control remotely if necessary.

Why it matters: The cars have been in testing without a safety driver for a few months. But this long-awaited advance is the first time people have been able to simply hail a totally driver-free ride using an app, as they would an Uber. It’s a big moment for a firm that hopes to turn its autonomy tech into a viable business by offering driverless rides.

Continue reading “Real people are now hailing Waymo’s robotic taxis, without a driver in sight” »

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