Yet there are thousands of them in Death Valley, clustering for the most part around natural springs and park buildings. Burros—known variously as donkeys, African wild ass, or Equus africanus asinus—are the largest animals in the park. They’re also relatively recent arrivals, introduced in the 1800s. And they’ve flourished to the point where they’ve been deemed a nuisance by the National Park Service, as they bulldoze through scarce water and vegetation resources, digging up riparian environments and crowding out native species....

No need to stress: Replacing the zipper on a winter jacket isn’t as difficult as most people think. Tools Seam ripperScissorsTape measureNeedle nose pliersZipper repair kit with pulls and stops (in some cases) Materials Tailor’s waxThread to match coat colorSewing machineZipper Types of zippers All coats and jackets have a zipper, and most use a heavy one with either plastic or metal teeth. If you want to be really precise, zippers are also sized according to how big their teeth are, in millimeters....

Get a headstart on your audio future with this package deal from Shure that’s on sale for $473, down from $548. The included MV7 podcast microphone has both USB and XLR outlets for use directly with computers or through an audio interface. You can choose Auto Mode or use the mic’s touch controls if you just want to get up and running, or tweak tone and mic distance more exactingly with the ShurePlus MOTIV app....

A study published on August 10 in the journal Nature finds that any increase in global temperature that exceeds 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels, could potentially cause the EAIS to melt and raise sea levels by as much as 16.4 feet by the year 2500. Keeping temperatures below that 2 degree Celsius threshold would limit sea level rise to less than 2 feet in the same time period....

Safety first You should have a firm foundation in proper knife use and safety. Following these rules will ensure there are no accidents when you are far away from medical help. Make sure every cut is away from you and others.Keep folding knives closed or sheath knives when not in use.When carving from a seated position, keep your elbows on your knees. If you slip while your elbows are on your thighs or at your hips, you’re more likely to slice into your leg....

1890s: William Morrison’s ride (above) Scotland-native William Morrison was one of the first inventors to create an electric vehicle for America’s streets. ­Twenty-four batteries under the seats provided the carriage with just 4 horsepower and a top speed of 20 mph as it rolled on steel-clad wooden wheels. 1914: Detroit Electric 47 The model 47, made by the Anderson Electric Car Company, could start ­instantly without the hand-cranking its ­combustion-driven ­cousins required....

This Bioluminescent Bio-Orb is a pretty special night light, featuring an artisanal home-blown glass sphere that is filled with bioluminescent PyroDinos (dinoflagellates). Bioluminescence is light produced by a chemical reaction with a living organism. PyroDinos are bioluminescent marine plankton found in the water and better known as marine drifters. These microscopic organisms produce a vibrant glow that will fill you and your home with a warm sense of tranquility and serenity....

The WiFi Digital Microscope is specifically designed to help you explore the world around you like you never have before. By connecting it to your phone, tablet, or computer, you can view the miniature world on a much larger display with absolute ease. You can get it on sale for 20 percent off for a limited time. Boasting a magnification of 50 up to 1,000 times, this mini telescope enables you to observe objects in greater detail....

The idea behind it is to “help people tailor their experience based on interests and relationships,” Facebook spokesperson Leonard Lam explained in an email to Popular Science. For example, one profile might be just for friends and family, while another could be used to engage with public groups. Each additional profile can have its own unique username that does not require users to disclose their real identity and would have its own unique Feed....

New research from a team of German scientists suggests that artificial photosynthesis could help. Scientists are urging the world to invest in the technology, which remains too costly to be practical. Artificial photosynthesis imitates the process that fuels plants naturally. Like the real thing, the technology uses carbon dioxide and water as food, and sunlight as an energy source. But rather than turn that carbon dioxide and water into leaves and branches, it produces carbon-rich products, such as alcohol....

For Mercedes-Benz, California-based Unity Technologies will underpin the automaker’s newest operating system, MB.OS, which will launch with 2024 models. The new OS will connect the powertrain (along with current semi-autonomous driving) with the infotainment and body and comfort systems in ways it hasn’t before, turning its cars even more into computers on wheels. Ultimately, the intent is for the car to become more tuned in to its capabilities as well as the driver’s and passengers’ desires....

But the fact is, tequila and its smokier sister, mezcal, have never been more popular outside of their Mexican homeland. The spirits rocketed to the top of the US drinking charts in 2019, and are projected to surpass rum in buying volume in the next few years. And while they both may be mainstream at this point, there’s still a lot consumers don’t know about the distillation process. Here are five essential questions and answers about the fiery desert libations....

A far cry from last year’s lo-fi addictions like Zombies and WereWolves, today’s titles increasingly offer 3D graphics, head-to-head action and interactive heroes. Better yet, of the thousands now available, the vast majority are completely free to install, play and enjoy right from your Web browser. Making friends and antagonizing people is easy too, with even classic distractions like Texas HoldEm Poker sporting 5,793,824 monthly users alone. The most popular and technically advanced platform with 120 million members, 52,000-plus programs to choose from and 140 new applications added daily, Facebook remains the gamer’s destination of choice....

Florida governor Rick Scott has now called in the Centers for Disease Control, asking the government agency to deploy an emergency response team to the area to help identify cases and prevent the small outbreak from spreading further. Florida health officials say that the outbreak area is contained to a small area, specifically a one-square-mile region, shown on a map below. The major concern over the Zika virus remains its risks associated with pregnancy and developing fetuses–particularly its ability to cause the birth defect microcephaly....

The humble B vitamin has been linked to a lower risk of autism spectrum disorder (ASD) for years now, but a new study in JAMA Psychiatry has provided more evidence for the association. Researchers at UC Davis zoomed in on a group of children whose older siblings already had an autism diagnosis. These kids are considered to be at a higher risk of developing the condition themselves, and the study is the first to look at this subgroup in this context....

The Infosec4TC Platinum Membership: Cyber Security Training Lifetime Access is on sale for only $69 and gives you unlimited access to a whopping 1840 hours of content to all online, self-paced certification courses on cybersecurity. In case you didn’t know, cybersecurity is one of the fastest-growing tech fields. It offers you growth potential, lucrative pay, and best of all, job security. Infosec4TC includes 90 courses covering ethical hacking, GSEC, CISSP and other internationally recognized IT certifications....

Though, as some have pointed out, missing from that bold proclamation are the thorny matters of getting clearance from the U.S. Federal Aviation Administration (FAA) if the drones are to operate in the United States, not to mention answers to other questions of technical and legal feasibility. Who pays for damage caused to person, property, or the cargo itself if a drone crashes, for instance? That said, Google Wing is one of the more exciting offshoots of Google’s (ok, Alphabet‘s) core business of selling ads against online searches....

Fortunately, there are platforms that exist to help ignite kids’ interest in computer science and have fun while they’re at it. codeSpark is one of them, and for a limited time, you can grab two 3-month subscriptions for the price of one. A winner of the 2020 Best Digital Tools – American Association of School Librarians and recipient of the Academics’ Choice Award for the Brain Toy category, codeSpark is specifically created to help kids learn to code....