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That one-time cost supplies instant and lifetime access to more than 400 piano lessons that cater to all skill levels. Whether you’re catching up after some time away from practice, looking to sharpen established piano skills, or are new to the instrument entirely, Skoove Premium is designed to simplify the learning process. Avoid expensive in-person lessons that are restricted to a particular time and place. Skoove Premium gives users the opportunity to learn at a pace that’s appropriate for their lifestyle, resulting in a personally tailored educational experience that spans notes, chords, techniques, and more....

I have given a lot of advice to parents during my career as a New York City classroom teacher and professor of early childhood education. About five days into the COVID-19 quarantine, I found myself answering work emails with one hand, holding a baby with the other and pointing to a map with my toe while trying to teach my other child geography. It was a defining moment for me as I understood how exhausting, unsustainable, and unhealthy it was for everyone involved....

With the tags in place, rangers can scan suspicious cacti in truck beds and at nurseries to make sure they weren’t pilfered. Ideally, Love says, the mere presence of the tags will deter theft. The tech will also make it easier for scientists to keep track of some of the park’s 1.3 million saguaros and record their location, health and growth rate. “The saguaros are an integral part of the Sonoran Desert,” Love says....

Railguns use electromagnetic energy, rather than gunpowder, to sling a projectile. The concept has been incredibly appealing to militaries, as the weapon offers the speed and efficiency of a cannon, but with the range of a missile. Photos shared on Twitter show that the Chinese Navy’s Type 072III landing ship tank (LST) Haiyang Shan, #936, has a new turret installed on its bow, replacing the H/PJ76F 37mm anti-aircraft turret. There are also three shipping containers....

Last week, Apple released its annual major software update for iPhones and iPads devices: iOS 12. Now, however, the latest version of its operating system for Macs is available, too. Called macOS Mojave, the update is worth installing. Here’s how to do it, and some of its notable features. Before you get started The new software won’t work on all Macs. It runs on MacBooks from early 2015 to the present, and MacBook Airs and MacBook Pros from the middle of 2012 onwards, among other machines....

“They all need to look invisible,” says zoologist Martin Stevens of the University of Cambridge, “but the mechanisms can be quite varied.” Recent research has focused on how some rare species—cuttlefish, for instance—can even tailor their quick changes to deter different predators. In the following gallery, we capture some of North America’s most ingenious disappearing acts. Launch the slide show here.

Hydra wasn’t finished in time to take the field at the Fairplex in Pomona, California. Instead, it’s hanging in the team garage, the hangar-like building that, apart from a few tours, is off-limits to the public. Media can only enter if a team invites them in. Hydra, in other words, is languishing in obscurity. There’s no telling how Hydra might have performed on the simulated disaster course, had it been ready to compete....

That buoy is one out of the many robots deployed by WHOI off of the East Coast and West Coast of the US. These buoys are autonomous platforms tuned into the melodies of a range of different whales: sei whales, fin whales, blue whales, humpback whales, but most notably, right whales, which are critically endangered. Right whales play a vital role in the ocean food web. Like other filter feeders, they eat zooplankton and tiny crustaceans, then recycle and redistribute nutrients like iron back into the ocean as they poop....

Today at the American Geophysical Union’s fall meeting, researchers discussed new evidence that the amount of coastal fog is not only increasing, but in some areas of California at least, it contains a surprising amount of a form of mercury called monomethylmercury. Although monomethylmercury can be hazardous to human health, there’s not enough of it in the fog to be dangerous. Marine fog typically arrives in the summer months in areas where ocean surface temperatures are cold, but the air above is warmer....

In the winter of 1540, a Spanish soldier named Hernando de Soto led a colonial expedition into the region, and a local leader, Chikasha Minka, gave them permission to overwinter in the town. Like most Spanish expeditions, de Soto’s travels left a trail of violence. Although the party was already weakened by a battle in Florida, it soon came into conflict with its hosts, executing two people and maiming another....

The British Sun received a slap on the wrist from the journal Science, but news sites buzzed cautiously over a new NASA study about methane gas detected on Mars in 2003. Methane plumes traced to three specific regions could signal active geological processes—or possibly even gas-emitting microbes, said scientists during yesterday’s press conference. The methane puffs appears linked to heating that occurred during the northern Martian hemisphere’s summer, SPACE.com explained....

I, and a few other shutterbugs around the Popular Science office, have been looking into the middle category of cameras: big enough to take good pictures, but not so big that it’s a burden. Now is a good time to look, since several camera makers have fresh midsize camera offerings. Recently introduced, the Canon G10 ($450) is the latest in its long-running series of “serious” point-and-shoots. At the heart of the camera is a tiny (about 40 square millimeters) image sensor similar to what you get in a pocket model....

“Today, we mark a tragic milestone: one million American lives lost to COVID-19. One million empty chairs around the dinner table. Each an irreplaceable loss,” President Joe Biden shared in a statement early this morning. In respect, he ordered all American flags on public grounds across states and territories, along with those at embassies overseas, to be flown at half-staff through May 16. The White House has not scheduled a live address to discuss the death toll any further....

Twenty-nine percent of the deaths were attributable to CCD; the remaining 71 percent were the more common culprits like parasitic mites and pesticides. Taken as a whole, the numbers show an increasingly weak population which will have a more difficult time pollinating on a commercial scale. While the deaths have certainly driven up the price of honey, the real economic danger comes when flowing food crops—including many fruits and vegetables—go unpollinated and yields begin to fall....

Fossil-fueled skies (above) Since 1800, global CO2 levels have climbed more quickly than in any other period during the past million years. Analyzing isotopes in the atmosphere shows that carbon-​12, found largely in vegetation, accounts for most of the increase; concentrations of the element’s two other isotopes fell in comparison. Climate scientists argue the only possible source for the added carbon-12 is fossil fuels, which are derived from ancient plants and release the pollutant when burned....

Building on technology from NASA’s 2013 Lunar Laser Communications Demonstration, LCRD will transmit data to Earth at 1.2 gigabits per second, about double the relay rate of its predecessor. That’s fast enough to download an entire Denis Villeneuve movie in less than a minute. Glenn Jackson, LCRD payload project manager, says the demo could someday help wrap internet networks around the moon and even Mars. “Currently we use radio frequency to move data and video to Earth,” Jackson says....

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The most visible shift is the movement of the cars’ numbers from their traditional spot on the doors toward the fenders, clearing space on the doors for the all-important sponsor logos. But look closer and you’ll notice that these cars are now more readily identifiable as the Mustang, Camaro, and Camry street cars they impersonate. No more amorphous teardrop-shaped vehicles that bear little resemblance to the street cars they purport to represent....

Some even consider wasting delicious bread a sin, so giving it a new life once it goes bad only seems fair for such a noble food. Once you know how to revive it, turning it into desserts, salad accompaniments, and, of course, breadcrumbs, is a breeze. You can work with stale bread, but don’t mess with mold There are basically two things that can make bread go bad: mold and staling—the two horsemen of the bread apocalypse....