Two charm quarks, two anti-charms make for a massive tetraquark. The quark model was an intellectual revolution for physics. Physicists were faced with an ever-growing zoo of unstable particles that didn’t seem to have a role in the Universe around us. Quarks explained all that through an (at least superficially) simple set of rules that … Continue reading CERN has discovered a very charming particle Continue Reading
It’s not clear why additional checkouts were needed, again. The third time was not a charm. A little more than an hour before a Falcon 9 rocket was due to launch on Saturday morning from Florida, SpaceX announced it was, “Standing down from today’s launch of the tenth Starlink mission to allow more time for checkouts; … Continue reading SpaceX stands down from Starlink launch for the third time [Updated] Continue Reading
Voyage pulled the curtain back on its system for remote driving. The ideal self-driving car would drive itself all the time, in all situations. But achieving that goal in practice is difficult—so difficult, in fact, that most self-driving companies have provisions for human backup to help cars get out of tricky or confusing situations. But … Continue reading This self-driving startup built a “car without wheels” for remote driving Continue Reading
“There’s so much of the Solar System that we have not explored.” At the beginning of this year, a group of NASA scientists agonized over which robotic missions they should choose to explore our Solar System. Researchers from around the United States had submitted more than 20 intriguing ideas, such as whizzing by asteroids, diving … Continue reading How small satellites are radically remaking space exploration Continue Reading
Keep from being followed online All of those obnoxious marketing emails that crowd your inbox aren’t just pushing a product. They’re also tracking whether you’ve opened the email, when you opened it, and where you were at the time by embedding tracking software into the message. Just type “email tracking” into your search engine and … Continue reading How to prevent being tracked while reading your Gmail Continue Reading
The best laptop under $1,000 This year’s HP Envy x360 is a big deal. Traditionally, the Envy line has been HP’s midrange option; it’s a rung above the budget Pavilion, but a rung below the flagship Spectre. This model, which starts at $699, really blurs the latter line. It’s easily the best laptop under $1,000 … Continue reading HP Envy x360 (2020) review: AMD wins again Continue Reading
Tell us how you like the company’s $1500 foldable smartphone. A few weeks ago we asked you to review Samsung’s Galaxy Z Flip, one of the few foldable smartphones on the market. Now we want to know if any of you early adopters opted for the Motorola Razr instead — it’s an updated version of the … Continue reading Was the Motorola Razr worth reviving? Continue Reading
The interface needs to be a lot less confusing. Earlier this week, Amazon announced that it would finally add user profiles to its Prime Video service. At long last, you can separate profiles for each family member (up to six) so that your Watchlists and recommendations don’t get mixed up. It’s a simple feature that … Continue reading Amazon Prime Video will soon have the content, but it needs a better home Continue Reading
Plus deals on the latest MacBook Air and the Apple Watch Series 3. As another week comes to a close, there are a number of gadget deals to pick from as well as some leftovers from the July 4th holiday. Apple’s AirPods with wireless charging case remain on sale for $150 and and you can … Continue reading This week’s best deals: AirPods, Nintendo Switch game sale and more Continue Reading
Otherwise, they won’t be able to access their company email. Amazon has requested that all of its employees delete the TikTok app from their phones citing security concerns. According to the New York Times, the company email stated that the app is now prohibited from all employee phones that can “access Amazon email,” and that employees … Continue reading Amazon bans TikTok on employee phones Continue Reading