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No matter how often you’re using these efficient key combinations in your day-to-day work, it’s in your in interest to learn as many as possible. A single shortcut will shave a moment off a task, but you’ll save a substantial chunk of time over weeks, months, and years. To get you started, we’ve gathered 20 of the most indispensable keyboard commands for the latest Microsoft Windows computers. No matter what program you’re running, Ctrl+Z will roll back your last action....

As the weather gets wetter and colder, outdoor gear goes on sale. Now’s a great time to buy supplies for next spring and summer. Today only, Klymit camping gear is on sale for up to 50 percent off. On market: two-person hammocks, sleeping bags, inflatable pillows, and 25-liter dry-bag backpacks. Trek this way for the full list. For some high-quality and thoughtful options made by people that really know the great outdoors—ahem, our pals at Outdoor Life—check out their new line of outdoor gear....

As a nod to the importance of images in science–both those taken with cameras and those constructed from data–the National Science Foundation holds a competition every year for the best visualization in science. The entries never disappoint. Take a look at some of our favorites from this year’s competition here, and then go vote for your favorite–today is the last day to vote!

Neutron stars are some of the densest objects in our universe and occur when the core of a huge star collapses. And when these super dense, dead stars get too close, it creates an immense burst of light, called a kilonova. Kilonovas are about 1000 times brighter than novas, which are caused by the eruption of a white dwarf. But kilonovas are about 1/10th to 1/100th the brightness of the more famous, showy star explosions, supernovas....

Rare earths are essential components of modern technologies, from iPhones to missiles, and just about everything in between. But although rare earth elements can be found all over the world, they are incredibly difficult to isolate, and it is even harder to draw them out of their matrix (usually clays or other geological deposits) without using harsh chemicals or other methods considered bad for the environment. Adding to the problem is the fact that most of the world’s rare earth supply comes from China, leaving other countries, including the United States, worried about shortages....

The new study looked at the mitogenome, or the mitochondrial DNA passed along the maternal line, of 200 living people from southern Africa. All are members of an ethnolinguistic indigenous group broadly known as the KhoeSan (unified by their traditional foraging way of life and use of languages that involve a unique “click” consonant), which previous genetic research suggests was once the largest group of people on the planet. Researchers examined their mitogenomes alongside others collected for earlier studies in the same region....

Steel is an alloy that most of us take for granted. In its simplest form, it’s a mix of iron and carbon. But there are a lot of other elements in blade steel that impact the performance of a knife. These elements, added in small amounts, help knives maintain an edge, not rust, and keep from shattering when dropped. To learn more about them, we spoke with Martin Mills, a test and innovation supervisor at Benchmade Knives....

Incredibly, these two clubs aren’t manufactured or marketed by the same company. The Kooler Klub has a 48-ounce capacity, with a simple vacuum pump spigot to dispense your beverage of choice from the club head ($49.99). A long-handled brush is included for cleaning between rounds. For the more avid golfer, a battery-powered deluxe version with a few extra ounces of capacity is available for $118.99. Amply hydrated, the next question facing any golfer around hole number ten is “which tree?...

The swath of gas, a planetary nebula named NGC 2899, is nestled somewhere between 3,000 and 6,500 light years away in the constellation Vela, which is visible from Earth’s southern hemisphere. Planetary nebulae were first named by astronomer William Herschel in 1782, who cited their resemblance to planets—but the structures are actually the last heroic stands of enormous, dying stars. After they’ve run out of fuel to burn, which can happen after anywhere from millions to a trillion years into their lifespans, these dying stars collapse, blowing off shells of element-rich gas reaching up to tens of thousands of degrees Celsius....

The internet of things might have a new family member. Using a custom-designed Android app, researchers switched on insulin-producing cells in a coin-sized disk implanted under the skin of diabetic mice, according to a study published this week in Science Translational Medicine. Such smart-cell devices might eventually help diabetes patients to stabilize their blood sugar level without injections. But there’s still a long way to go. Space travel can be lonely, but also jaw-droppingly beautiful....

Of course, if you only enjoy golf occasionally, there’s no point in spending hours upon hours concentrating on your techniques. But practice can still go a long way, especially if you need to improve your putting. Blindly rolling putts will get you nowhere, so you need to approach every attempt with the intent to make it sink. You can also benefit from the help of training aids like PuttOUT. Rated editor’s choice in Golf Digest in 2018 and 2020, this tool is specifically designed to perfect your putting ball speed....

Vocal filters, while not necessarily new, have only recently started to be taken more seriously thanks to AI assistance. Unfortunately, it poses its own host of serious societal implications, and like the video deepfake industry, there seems to be little regulators can do to stop it. Emerging AI tools like Koe Recast and Voice.ai are quickly honing their ability to transform audio inputs to sound like virtually anyone one wants if provided enough source material to analyze....

But there’s another evaluation that Ciavarra must make, in addition to scanning the swirls of bone, ligaments, fat, cartilage, and tendons for problems like tears or arthritis. Was this particular knee scan created by artificial intelligence, or did it emerge from an MRI machine the traditional way? “My gut says it’s AI,” she says, without certainty. “It just looks a little blurry.” Ciavarra and her NYU colleagues were participants in a study that pitted the quality of AI-created scans against traditional ones....

Notably, the tech giant also highlighted how AI has allowed them to build new features across a range of its services and apps—including Translate, Search, Maps, and more. Here’s what updates users can expect to come down the pike, both soon and in the future. Translate Google’s work on language models has enabled it to expand its translation capabilities. Google said that it is adding 24 new languages to Google Translate including Bhojpuri, Lingala, and Quechua....

Published this week in the journal JAMA, the study involved over 10 different children’s hospitals, enrolling 1068 children between the ages of 7 and 17 years who came to the hospital with uncomplicated appendicitis. Previous research in adults used randomized trials to determine the efficacy of the different appendicitis treatment methods, but that wasn’t possible with children, says study author Peter Minneci, a pediatric surgeon and co-director of Nationwide Children’s Hospital’s Center for Surgical Outcomes Research....

iPhone 14 and iPhone 14 Plus If you’re not interested in Apple’s more expensive iPhone Pro lineup, the company also introduced the iPhone 14 and iPhone 14 Plus, the latter of which is a new addition. These devices offer an excellent suite of features but are available at a more comfortable price for most people. The iPhone 14 and 14 Plus come with the same A15 Bionic chipset that was in the iPhone 13 and will be available for $799 and $899, respectively....

Weighing just 1,984 pounds, the Weber Faster One (seriously) is powered by a 900-horsepower twin-supercharged V8 based on the same 7.0-liter LS7 found in Chevrolet’s Corvette Z06. Weber boffins created the Faster One’s six-speed sequential gearbox and AWD system in-house. The latter system can send up to 36 percent of torque to the front wheels. The company reports zero-to 100 km/h (62 mph) in an astonishing 2.7 seconds, with a top speed—yet to be verified by a third party — of 248 mph....

“We see these mechanisms all over biology,” says lead author Jacob Harrison, a PhD student in biology at Duke University. “You see them in jumping insects, you see them in snapping shrimp, you see them in trap jaw ants, you see them in frogs.” With this research, says Harrison, the team was interested in figuring out when this ability first appears in mantis shrimp, and if baby mantis shrimp can strike faster than their adult counterparts....

But when biologist Rebecca Tonietto surveyed the wild bee communities in both places, her conclusions surprised her: the number of bees and diversity of species was almost identical. The native bees did just as well in the urban park as in the more natural habitat. She wondered: Was something going wrong with the prairie restoration? Or was there something particularly excellent about Montrose park? “Spoiler alert: that was it,” Tonietto says....