Roman concrete is pretty amazing stuff. It's among the main reasons we know so much about Roman architecture today. So many structures built by the Romans still survive, in some form, thanks to their ingenious concrete and construction techniques. However, there's a lot we still don't understand about exactly how the Romans made such strong concrete or built all those impressive buildings, houses, public baths, bridges and roads.

Most Versatile Photograph: Kristin Canning Lifesmart TM2202 3-in-1 Treadmill If you’re not keen on buying a standing desk, check out the Lifesmart 3-in-1 Treadmill. You can wheel the lightweight machine into any room, place the desk attachment across the handrail, and get to working and walking. The desk’s height won’t accommodate everyone—it was lower than I’d like, and I’m 5'4”. But for quick, basic work like answering emails or sitting in on a meeting, it got the job done just fine.

Bring your photography off the ground with the DJI Mini 5 Pro Fly More Combo Plus, an ideal choice for both beginners and seasoned drone enthusiasts. Right now, this highly-rated bundle is available for just $1,159, offering a 17% discount that saves you over $240 off the regular price. The package includes everything you need to dive into drone photography and videography, including three flight batteries, a controller, a charging hub, and a convenient carrying bag, so you can start flying and capturing stunning shots right out of the box.

Other Portable Power Stations We Tested Ampace Andes 600 Pro for $449: This compact power station weighs 19 pounds and has an easy-carry handle on top. It stores 584 Wh of power and can be fully charged in an hour (30 dB sleep mode). It can deliver 600 watts (1,800 W surge), and has lots of ports (2 x AC, 2 x USB-C, 2 x USB-A, 2 x DC 5521, 1 x Car).

Forza Horizon 5 hit the PlayStation 5 storefront earlier this year. You best dip in to experience one of the best racing games of the generation. And if you want to make the experience extra special, get yourself the right tool to make it feel like you’re really behind the wheel—because you’re really be behind the wheel. A wheel. The Logitech G923 racing wheel and pedals for PlayStation consoles, PC, and Mac is heavily discounted at the moment.

Cephalopod evolution has long had a missing chapter in its story: how did squid-like ancestors give rise to today's octopuses? The answer, it turns out, was floating in the deep sea all along. With its glowing ghostly eyes, eight arms like its octopus cousins and a dark ruby coloring to match, the elusive vampire squid (Vampyroteuthis infernalis) has finally revealed its genetic secrets.

FAQs We asked Joshua Hale, general manager of commuter bike specialists Quella, to answer all our questions on how to get your bike ready for winter and keep it running smoothly all year long. How can cyclists stay visible to drivers without turning into a rolling Christmas tree? It is not just the quantity of lights that’s important. Placement also makes a huge difference.

I have had the new M5-powered Apple Vision Pro and Samsung Galaxy XR headsets sitting on my desk for several weeks. These are expensive, cutting-edge pieces of hardware. Apple's version is $3,499! Samsung's headset is roughly half that—still a pretty penny at $1,800. Mustering the energy to don them has been a task. You can watch movies, play immersive games, and get some work done with multiple virtual screens.

Another year, another update to Sony's PlayStation Portal. The latest tweak to the hardware considerably expands the roster of games playable on the device—but the end result only highlights how urgently PlayStation needs to re-enter the gaming handheld market for real. The evolution of PlayStation Portal has been fascinating to watch, mainly to see Sony practically scrambling to keep up with the gadget's unexpected popularity.

quick facts What it is: Gamma-ray burst GRB 250702B Where it is: 8 billion light-years away, in the constellation Scutum When it was shared: Dec. 8, 2025 A gamma-ray burst (GRB) — the most energetic type of explosion in the universe since the Big Bang — is detected once every day, on average. But what happened on July 2, 2025, was highly unusual: NASA's Fermi Gamma-ray Space Telescope, which has been orbiting Earth since 2008, recorded an unusually long-lived GRB that continued emitting in bursts for more than seven hours.

Here’s everything you need to know about data privacy in sex toys and the apps that connect to them.

It's a long-held idea that turtles can tuck their heads into their shells when threatened. But is it true? And is this protective trick why turtles the world over have shells today? The answer is that some types of turtles can, and others can't, experts told Live Science. And even though shells can be protective for some of these reptiles, fossil evidence suggests that shells evolved for entirely different reasons.

Final Fantasy I-VI Collection Anniversary Edition is back on sale for its Black Friday price at Amazon. Nintendo and PlayStation Final Fantasy fans can get the six-game retro collection for $40 (was $75) for Switch and PS4. This is a true physical edition with all six games on the Switch cartridge or PS4 disc, and the collection is fully compatible with Switch 2 and PS5.

The A390’s electric motors are manufactured in a dedicated facility in Cléon, the NMC batteries sourced from a company called Verkor, but with modules produced in Dunkirk and assembled in the Renault Group facility in Douai. The chassis, meanwhile, was designed and built at the company’s Le Mans plant. As with the smaller A290 and indeed with various Renaults (the 4, 5 and incoming Twingo), this is an EV for the committed Francophile.

The original version of this story appeared in Quanta Magazine. Among the myriad abilities that humans possess, which ones are uniquely human? Language has been a top candidate at least since Aristotle, who wrote that humanity was “the animal that has language.” Even as large language models such as ChatGPT superficially replicate ordinary speech, researchers want to know if there are specific aspects of human language that simply have no parallels in the communication systems of other animals or artificially intelligent devices.

Milestone: Humans reach the South Pole Date: Dec. 14, 1911 Where: Geographic South Pole, Antarctica Who: Roald Amundsen and his crew In 1910, a fierce competition began between Norwegian explorer Roald Amundsen and British captain Robert Falcon Scott. Each explorer wanted to be first to reach the geographic South Pole, thereby vanquishing the last unexplored continent on Earth. The race was destined to end in tragedy.

Oscar-nominated actor Sigourney Weaver has confirmed the reports that she will appear in the upcoming live-action Tomb Raider series on Prime Video. Speaking to Deadline, Weaver said she is "very excited" to join the cast and work with writer-producer Phoebe Waller-Bridge on the project. "The scripts are incredible and very funny, very charming, very witty, as we've come to expect from Ms.

Three weeks ago, I tested something that completely changed how I think about organic traffic. I opened ChatGPT and asked a simple question: "What's the best course on building SaaS with WordPress?" The answer that appeared stopped me cold. My course showed up as the first result, recommended directly by the AI with specific reasons why it was valuable. I hadn't paid for advertising.

New Metroid games are few and far between, so the launch of Metroid Prime 4: Beyond should have been a monumental event for the fanbase. Instead, eight years after its announcement, and 18 years after the previous game, Nintendo’s big December 2025 release landed with a loud thud. Already, this once highly anticipated title is poised to be one of the series' most divisive games, earning a spot alongside Other M and Federation Force.

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Step into a typical Italian restaurant in the U.S. and you’ll likely find “biscotti” on the menu. Typically served with a glass of sweet wine or cappuccino, these log-shaped crunchy cookies are a beloved treat that most of us associate with cozy dinners and Little Italy. But these crisp pastries were once a superfood used to power naval forces and shipping crews. 

GameSpot may receive revenue from affiliate and advertising partnerships for sharing this content and from purchases through links. The Street Fighter movie teaser premiered during The Game Awards, and it looks like the film leans into the series' blend of flashy martial-arts action and larger-than-life characters. Even in quick cuts, the teaser gives fans their first look at familiar faces: Andrew Koji's intense Ryu, Noah Centineo's Ken, and Callina Liang's Chun-Li.

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Elites in Ancient Rome went to great lengths to advertise their status and wealth. Based on recent archaeological excavations in Egypt, at least some high-ranking military officials even showed off with their choice of pets. In the Journal of Roman Archaeology, researchers at Poland’s University of Warsaw described a nearly 2,000-year-old animal cemetery in the Egyptian port city of Berenike that includes the remains of multiple macaque monkeys.

The new Tomb Raider games announced at The Game Awards, Tomb Raider: Legacy of Atlantis and Tomb Raider: Catalyst, will feature the voice of Alix Wilton Regan as Lara Croft. This is a change from the latest trilogy--Tomb Raider, Rise of the Tomb Raider, and Shadow of the Tomb Raider--which featured Camilla Luddington voicing and performing the motion-capture for Croft.

If Alien: Romulus reawakened your appetite for the iconic sci-fi franchise, the good news is that a promising video game could be on the way. According to an Insider Gaming report, a new game for the Alien franchise is back in development. The report's sources mentioned that the single-player game will be set in a "decaying space station" as an arcade survival horror that can be compared to "Shadow of Tomb Raider with Xenomorphs."

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. “In general, cannibalism of offspring is super widespread,” says Aneesh Bose, a behavioral ecologist at the Swedish University of Agricultural Sciences in Uppsala, Sweden. Bose has long studied the phenomenon of animals who turn from child-rearing to child-eating, and in 2022, he authored a review of prior research on the topic.