If Dilophosaurus ran the 100-meter against Usain Bolt, who would win?
Eight-time Olympic gold medalist would beat the Jurassic beast by a good 2 seconds. Enlarge / University of Toledo physicist Scott Lee came up with the exercise to inspire undergrads in his introductory physics course. (credit: Aurich.....»»
What is a sinkhole? A geotechnical engineer explains
Sinkholes are back in the news after a 13-year-old boy fell down a two meter deep hole in a waterlogged football field in Sydney over the weekend. The boy reportedly sank further into the hole every time he tried to push down with his feet, but was l.....»»
Arecibo Observatory telescope outfitted with a wideband cryogenic system to expand its capabilities
Constructed within a natural sinkhole in Puerto Rico, the 305-meter-wide Arecibo Telescope played a part in numerous discoveries, including the first detection of an exoplanet. It was the largest radio telescope in the United States from 1963 until i.....»»
EV bargains to be found as Hertz sells off some of its electric cars
More than 1,200 EVs are cheap enough to qualify for the used clean vehicle tax credit. Enlarge / Hertz currently has more than a thousand Bolt EUVs for sale as they leave its rental car fleet. (credit: Chevrolet) Electri.....»»
SpaceX shares awesome rocket imagery from Starship flight
SpaceX has shared some breathtaking imagery from the most recent Starship flight, including a close-up of the 120-meter-tall rocket leaving the launchpad......»»
Astronomers propose a 50-meter submillimeter telescope
Some parts of the universe only reveal important details when observed in radio waves. That explains why we have ALMA, the Atacama Large Millimeter–submillimeter Array, a collection of 7-meter and 12-meter radio telescopes that work together as an.....»»
Lidar sensors vulnerable to spoofing attacks, researchers say
Using a series of high-frequency laser pulses, researchers created a 10-square meter perception dead zone......»»
GM 2024 strategy: Chevy Bolt revival shows commitment to affordable EVs
In an interview for the "Daily Drive" podcast, GM CFO Paul Jacobson discussed EVs, China and relaunching Cruise......»»
The United States cellular network struggled the morning of February 22
It's not just you — AT&T, T-Mobile, and Verizon were having issues across a wide swathe of the US, but the issue seems to have been resolved.A 5G signal meter on an iPhone 12So far, it's not clear why T-Mobile, AT&T, and Verizon are all having issu.....»»
The United States cellular network is struggling this morning
It's not just you — AT&T, T-Mobile, and Verizon are having issues across a wide swathe of the US this morning.A 5G signal meter on an iPhone 12So far, it's not clear why T-Mobile, AT&T, and Verizon are all having issues this morning. Symptoms vary,.....»»
Traces of Stone Age hunter-gatherers discovered in the Baltic Sea
In autumn 2021, geologists discovered an unusual row of stones, almost 1 km long, at the bottom of Mecklenburg Bight. The site is located around 10 kilometers off Rerik at a 21-meter water depth. The approximately 1,500 stones are aligned so regularl.....»»
Chinese astronomers find radio pulsar in a supernova remnant
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), astronomers from the Nanjing University in China and elsewhere, have detected a radio pulsar in a supernova remnant known as CTB 87. The finding is reported in a paper published.....»»
Huge tsunami with 20 meter waves may have wiped out Stone Age communities in Northumberland
An enormous tsunami with gigantic waves reaching 20 meters submerged large parts of northern Europe and may have wiped out populations of people in Stone Age Britain, a new University of York study has discovered......»»
Sierra Space is blowing up stuff to prove inflatable habitats are safe
"We are well on our way to having our habitats ready for launch in 2026.” Enlarge / Sierra Space's 300 cubic meter inflatable habitat burst at 77 psi, five times the pressure it would need to handle in space. (credit: Sierra Sp.....»»
Technical headaches put the brakes on GM’s big EV push
GM sold a record number of EVs in 2023, but only thanks to the Bolt EV and Bolt EUV. Enlarge / A GM Ultium battery pack like that found in the Lyriq. (credit: Santa Fabio for General Motors) General Motors ended 2023 as.....»»
Ford F-150 recall involves rear axle hub bolt
The rear axle hub bolt in certain 2021-2023 Ford F-150 vehicles may break, increasing the likelihood of crash, NHTSA said......»»
First release of the largest extragalactic HI catalog
The FAST All Sky HI survey (FASHI) was designed to cover the entire sky observable by the Five-hundred-meter Aperture Spherical radio Telescope (FAST), spanning approximately 22,000 square degrees of declination between -14 deg and +66 deg, and in th.....»»
FAST detects three new pulsars in an old globular cluster
Using China's Five-hundred-meter Aperture Spherical radio Telescope (FAST), astronomers have discovered three new pulsars in an old Galactic globular cluster known as Messier 15. Two of them turned out to be long-period pulsars, while the remaining o.....»»
Hurricane Larry dumped 100,000 microplastics per sq. meter on Newfoundland each day
It's another sign of how plasticized our environment has become. Enlarge (credit: J Marshall/NASA/ESA/T. Pesquet/Alamy) As Hurricane Larry curved north in the Atlantic in 2021, sparing the eastern seaboard of the United.....»»
Paying people to replant tropical forests and letting them harvest the timber can pay off
Tropical forest landscapes are home to millions of Indigenous peoples and small-scale farmers. Just about every square meter of land is spoken for, even if claims are not formally recognized by governments......»»
Model shows New Zealand should expect 15-meter tsunami every 580 years
A team of geographers, Earth scientists and environmental scientists affiliated with several institutions in New Zealand, working with that country's National Institute of Water and Atmospheric Research, has found that it is possible to model the num.....»»