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Keep saving with these 2021 Walmart Black Friday deals

Standing outside of a big box retailer used to be essential on Black Friday. Now, big sellers like Walmart offer their most impressive sales and discounts online for easy shopping from afar. Cold temperatures and huge crowds used to be the biggest Black Friday obstacles. Now, it’s the sheer volume of deals to sift through. We’ve done a lot of the legwork for you, so sit back with a turkey and stuffing sandwich and save some cash. Cricut Explore Air…


Ancient cities had toxic pollution, too

Lake Amatitlán is so green that it glows. “It looks like paint,” says Matthew Waters, a paleoecologist at the University of Auburn. Industrial pollution and sewage from Guatemala City trickles down into this valley in the highlands, feeding algal blooms that produce levels of toxic chemicals 100 times higher than the level considered dangerous by the World Health Organization. “It’s one of the densest green, most harmful algal blooms” in the world, says Waters, who studies traces of algae left…


How to make Thanksgiving COVID-safe with boosters and rapid tests

For many families, this will be the first Thanksgiving they’ve been able to celebrate together in two years. Booster shots and vaccines for kids five and older mean that many of the most vulnerable relatives are better protected. But COVID is still circulating, and you might be wondering what you need to do to make sure your family is safe while getting together. Just how cautious you need to be depends on your risk tolerance, and your family and community.…


An Apple Black Friday deal today keeps shopping later away

Are AirPods and MacBooks and iPads the, well, Apple of your eye this season? Then we have great news for you because there are killer deals on Apple products across the internet this Black Friday—and you don’t even have to wait till it’s actually Friday to get them. You can check out more of our general Black Friday coverage here or keep scrolling for some of these stellar savings on one of the most well-designed electronics brands there is: Apple AirPods…


A $17 billion Samsung chip factory could be coming to Texas

Update: The news is official. (This post was originally published on Nov. 23, 2021.) Multiple outlets are reporting that Samsung is planning to open a new semiconductor factory in Texas—its second in both the state and the country. Reuters and the Wall Street Journal have identified Taylor, Texas as the possible location for the estimated $17 billion plant, citing sources with knowledge of the matter.  The WSJ said in January that Samsung was eyeing multiple cities throughout the United States…


These Target Black Friday deals are still live

It’s hard to navigate all of Target’s deals on a normal day. On Black Friday, there are so many discounts and excellent products on sale that it can be overwhelming. This year, we’ve dug through the glut of Black Friday deals to find the best and compiled them into this list. Target will be adding new deals throughout the weekend, so we’ll keep this list updated with all the best stuff. The best Target Black Friday deals for 2021 Amazon…


The best remaining Black Friday 2021 deals

Black Friday is over, but there are still tons of deals out there if you know where to look. Luckily, we’ve been honing our deal-hunting skills for a long time. We’re spending the weekend pouring over the best deals and discounts we can find. Check out our other Black Friday coverage Amazon Black Friday deals Best Buy Black Friday deals Walmart Black Friday deals Target Black Friday deals Big Instant Pot and air fryer savings Black Friday TV deals Black…


Russian mail drones could simplify Siberian postal delivery

On its platform, the helicopter-style SH-350 drone receives a blue package in a pelican-case-style box. Tied tight into place, it rises with the drone over a field of snow. The tops of snow-covered trees are visible below, as the robotic letter carrier navigates the skies of the Siberian winter twilight. On delivery, a human opens the protecting case, and extracts the contents. Drone delivery offers a chance to overcome the innate difficulties of regular resupply over difficult terrain, offering lessons…


What makes one pair of headphones better than another?

Timothy Hsu is an assistant professor of Music and Arts Technology, IUPUI. This story originally featured on The Conversation. Between music, podcasts, gaming and the unlimited supply of online content, most people spend hours a week wearing headphones. Perhaps you are considering a new pair for the holidays, but with so many options on the market, it can be hard to know what to choose. I am a professional musician and a professor of music technology who studies acoustics. My…


Turkey and chicken poop have untapped energy potential

The following is an excerpt from The Other Science Dark Matter: The Science and Business of Turning Waste into Wealth and Health by Lina Zeldovich. It was another hot day in the Negev desert of Israel, and several researchers from Ben-Gurion University were setting up a field lavatory. Essentially a toilet seat stuck over a metal frame with a plastic bag receptacle underneath, this makeshift privy was an artifact of minimal convenience, typically used when scientists work in remote places…


This ancient mammoth tusk was found at the bottom of the Pacific

Aboard the R/V Western Flyer on a research expedition off the coast of California in 2019, scientists from the Monterey Bay Aquarium Research Institute were piloting remotely operated vehicles (ROVs) to search for new creatures in the deep sea when they found what looked like a tusk.  They were 185 miles off the coast, searching at depths 10,000 feet beneath sea level—finding a tusk seemed an impossibility. Randy Prickett, the senior ROV pilot who first spotted it, was sure that…


Wake up to a customized alarm on your smart speaker

Smart speakers can do a lot of things. Among them, wake you up in the mornings with something other than the same forgettable electronic tone. Depending on the device you have, you can kick your day off with all kinds of audio—from your favorite music playlists to the morning news report. Amazon Echo Start with the basics by setting up an alarm on your Amazon Echo smart speaker or smart display. All you have to do is say “Alexa, set…