LiDAR reveals Mayan mega city hidden in Guatemalan jungle

A vast Mayan megalopolis apparently lies hidden underneath all the trees, creepers and centuries of growth and soil in the Guatemalan forest — and we might never have found it if not for the wonders of laser technology. The PACUNAM Foundation , which champions the use of scientific research to preserve cultural heritage, has scanned the jungles in the country using Light Detection and Ranging ( LiDAR ) technology and found an interconnected network of ancient cities. They discovered 60, 000 previously unknown structures without having to cut down a single plant, and that discovery changes many things we thought we knew about the ancient civilization. The sheer size of the megalopolis suggests that Mayan populations were bigger than we thought. Previous estimates put the Mayan people’s population at around 5 million, but now it’s possible that there were 10 to 15 million of them. The fact that the team discovered houses, pyramids, palaces and elevated highways even though Mayans didn’t use wheels or relied on beasts on burden indicates that they had an organized workforce. Since the cities in the hidden megalopolis were connected by wide causeways, the Mayans likely interacted regularly and might’ve had established trade routes. Further, all the ramparts and fortresses found in the ruins show that “warfare, ” as team member and archaeologist Thomas Garrison explained, “wasn’t only happening toward the end of the civilization.” While we mostly talk about LiDAR as a system that helps self-driving cars and robots “see” their environments, scientists have also been using it to survey the environment without disturbing it. That’s why it’s the perfect tool for PACUNAM’s scientists — aside from the fact that physically looking for the ruins would’ve taken forever, Guatemala is already losing 10 percent of its forests every year to agriculture and human settlement. In fact, we’ll probably hear more discoveries in the future, since this is only the initiative’s first phase: the organization plans to use LiDAR to map over 5, 000 square miles of Guatemala’s lowlands in the future. Via: The Guardian Source: National Geographic

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LiDAR reveals Mayan mega city hidden in Guatemalan jungle

Washington Bill Makes It Illegal To Sell Gadgets Without Replaceable Batteries

Jason Koebler writes: A bill that would make it easier to fix your electronics is rapidly hurtling through the Washington state legislature. The bill’s ascent is fueled by Apple’s iPhone-throttling controversy, which has placed a renewed focus on the fact that our electronics have become increasingly difficult to repair. Starting in 2019, the bill would ban the sale of electronics that are designed “in such a way as to prevent reasonable diagnostic or repair functions by an independent repair provider. Preventing reasonable diagnostic or repair functions includes permanently affixing a battery in a manner that makes it difficult or impossible to remove.” Read more of this story at Slashdot.

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Washington Bill Makes It Illegal To Sell Gadgets Without Replaceable Batteries

Chrome OS Will Finally Run Android Apps in the Background

An anonymous reader shares a report: While it’s no longer a novelty to run Android apps on your Chromebook, that doesn’t mean they run well. To date, most of those apps pause when you switch away — fine for a phone, but not what you’d expect on a computer with a multi-window interface. However, they’re about to become far more functional. Chrome Unboxed has learned that the Chrome OS 64 beta introduces Android Parallel Tasks, which lets Android apps run at full bore regardless of what you’re doing. You could watch a video in a mobile app while you’re surfing the web, or take a break from a mobile game without jarring transitions. There’s no guarantee that Android Parallel Tasks will reach the stable Chrome OS 64, so you might not want to plan a purchase around the feature. Read more of this story at Slashdot.

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Chrome OS Will Finally Run Android Apps in the Background

Linux Pioneer Munich Confirms Switch To Windows 10

The German city of Munich, once seen as a open-source pioneer, has decided to return to Windows. Windows 10 will be rolled out to about 29, 000 PCs at the city council, a major shift for an authority that has been running Linux for more than a decade. From a report: Back in 2003 the council decided to to switch to a Linux-based desktop, which came to be known as LiMux, and other open-source software, despite heavy lobbying by Microsoft. But now Munich will begin rolling out a Windows 10 client from 2020, at a cost of about Euro 50m ($59.6m), with a view to Windows replacing LiMux across the council by early 2023. Politicians who supported the move at a meeting of the full council today say using Windows 10 will make it easier to source compatible applications and hardware drivers than it has been using a Linux-based OS, and will also reduce costs associated with running Windows and LiMux PCs side-by-side. Read more of this story at Slashdot.

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Linux Pioneer Munich Confirms Switch To Windows 10

A Stable Plasma Ring Has Been Created In Open Air For the First Time Ever

New submitter mrcoder83 shares a report from Futurism: Engineers from the California Institute of Technology (Caltech) have been able to create a stable plasma ring without a container. According to the Caltech press release, it’s “essentially capturing lightning in a bottle, but without the bottle.” This remarkable feat was achieved using only a stream of water and a crystal plate, made from either quartz and lithium niobate. The union of these tools induced a type of contact electrification known as the triboelectric effect. The researchers blasted the crystal plate with an 85-micron-diameter jet of water (narrower than a human hair) from a specially designed nozzle. The water hit the crystal plate with a pressure of 632.7 kilograms of force per centimeter (9, 000 pounds per square inch), generating an impact velocity of around 305 meters per second (1, 000 feet per second) — as fast as a bullet from a handgun. Plasma was formed as a result of the creation of an electric charge when the water hit the crystal surface. The flow of electrons from the point of contact ionizes the molecules and atoms in the gas area surrounding the water’s surface, forming a donut-shaped glowing plasma that’s dozens of microns in diameter. Caltech posted a video of the plasma ring on their YouTube channel. Read more of this story at Slashdot.

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A Stable Plasma Ring Has Been Created In Open Air For the First Time Ever

Laser Light Forges Graphene Into the Third Dimension

Big Hairy Ian quotes New Atlas: The wonder material graphene gets many of its handy quirks from the fact that it exists in two dimensions, as a sheet of carbon only one atom thick. But to actually make use of it in practical applications, it usually needs to be converted into a 3D form. Now, researchers have developed a new and relatively simple way to do just that, using lasers to ‘forge’ a three-dimensional pyramid out of graphene… By focusing a laser onto a fine point on a 2D graphene lattice, the graphene at that spot is irradiated and bulges outwards. A variety of three-dimensional shapes can be made by writing patterns with the laser spot, with the height of the shape controlled by adjusting the irradiation dose at each particular point. The team illustrated that technique by deforming a sheet of graphene into a 3D pyramid, standing 60 nm high. That sounds pretty tiny, but it’s 200 times taller than the graphene sheet itself. “The beauty of the technique is that it’s fast and easy to use, ” says one of the researchers. “It doesn’t require any additional chemicals or processing.” Read more of this story at Slashdot.

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Laser Light Forges Graphene Into the Third Dimension

Here’s a full-length look at SpaceX’s spacesuit

Elon Musk dropped a carefully cropped look at the SpaceX suit for astronauts on his Instagram a couple of weeks ago, and came back with a more revealing picture today. Modeled in front of the company’s Crew Dragon spacecraft , it gives a better idea of what we might be able to expect. It’s far sleeker than what we’ve seen in use from NASA until now, and as Musk noted previously, it apparently actually works. The flexible, padded joint areas look like they’ll give wearers a good range of motion, while the boots are relatively lightweight. That’s not surprising since, as TechCrunch notes, these are for use while inside the Dragon capsule or transferring to other vehicles where the environment is pressurized, not a long walk in the cold vacuum of space. There’s no word on when we’ll get our next pre-Mars trip fashion show, so enjoy this pic for now. Astronaut spacesuit next to Crew Dragon A post shared by Elon Musk (@elonmusk) on Sep 8, 2017 at 1:04pm PDT Source: Elon Musk (Instagram)

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Here’s a full-length look at SpaceX’s spacesuit

Bill Gates and Richard Branson Back Startup That Grows ‘Clean Meat’

A large global agricultural company has joined Bill Gates and Richard Branson to invest in a nascent technology to make meat from self-producing animal cells. “Memphis Meats, which produces beef, chicken and duck directly from animal cells without raising and slaughtering livestock or poultry, raised $17 million from investors including Cargill, Gates and billionaire Richard Branson, according to a statement Tuesday on the San Francisco-based startup’s website, ” reports Bloomberg. From the report: This is the latest move by an agricultural giant to respond to consumers, especially Millennials, who are rapidly leaving their mark on the U.S. food world. That’s happening through surging demand for organic products, increasing focus on food that’s considered sustainable and greater attention on animal treatment. Big poultry and livestock processors have started to take up alternatives to traditional meat. To date, Memphis Meats has raised $22 million, signaling a commitment to the “clean-meat movement, ” the company said. Read more of this story at Slashdot.

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Bill Gates and Richard Branson Back Startup That Grows ‘Clean Meat’

Startup Unveils Revolutionary New Rechargeable Alkaline Batteries

Slashdot reader cdreimer quotes the New York Times: Alkaline batteries can be made far more cheaply and safely than today’s lithium-ion batteries, but they are not rechargeable… Ionic Materials could change that equation with an alkaline battery the company said could be recharged hundreds of times. One additional benefit of the company’s breakthrough: An alkaline battery would not be as prone to the combustion issues that have plagued lithium-ion batteries in a range of products, most notably some Samsung smartphones. Cheaper and more powerful batteries are also considered by many to be the driver needed to make the cost of renewable energy technologies like wind and solar competitive with the coal, gas and nuclear power that support the national energy grid. The company “has demonstrated up to 400 recharge cycles for its prototypes, ” and it’s now even investigating aluminum-based alkaline batteries which would also be lighter than lithium-ion batteries. The company is backed by Sun Microsystems co-founder Bill Joy, who also envisions the batteries being used in electric cars. Read more of this story at Slashdot.

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Startup Unveils Revolutionary New Rechargeable Alkaline Batteries

Théoriz recreates the Holodeck with AR tech and projectors

If you had to list the most mind-blowing tech demos in recent memory, Microsoft’s Hololens AR headset would need to be included, as would its projector-enhanced Illumiroom . A company called Théoriz from Lyon, France has married both of those things to create a “mixed reality room” that uses projector tech, motion tracking and augmented reality together. Its latest technology demo video made it seem like we’re closer to Star Trek ‘s Holodeck than ever before, so we went to take a closer look. Théoriz is located at the ” Pole Pixel , ” a sprawling collection of studios east of Lyon used by Panavision and other cinema companies. The company’s mission is as much artistic as tech-oriented, so the engineers are both bohemian and code-savvy. “We are a team mostly composed of creative engineers, ” says Th éoriz co-founder David-Alexandre Chanel. “Engineers who have an artistic sensibility and also do good code.” To wit, the company has created some very technical and very whimsical projects, including an art installation called ” Doors ” featuring portals that open up to an infinite space and change perspective as the viewer moves, and ” Are You my Friend , ” an industrial robot that communicates with the exhibit-goers via a keyboard. Art aside, the mixed reality room tech is impressive. The team tracks the camera (typically a RED model that can record and output in real time) with an HTC Vive Tracker , and feeds the data to a computer running the Unity game engine . That generates digital environments like flying space skulls, a Minecraft-like room with holes that open up on the floor and geometric shapes that interact with actors to form stairs, wells or small hills. The computer syncs everything together, so that when the camera operator pans or tilts, the Unity scenes tilt or pan to match. Those are then beamed into the room via six projectors — four for the floors, and two on the walls. At the same time, three Kinect-style 3D cameras, combined with Théoriz’s in-house “Augmenta” system, detect the position of the actors so they can interact with the environment. Everything must be processed and played back in real-time by the Unity based system, something that required some clever coding and computing horsepower. In the resulting videos, live actors interact seamlessly with virtual environments, creating a hallucinogenic effect. “It’s called mixed reality because we use and merge things from the virtual world with reality, ” says Chanel. For instance, dancers can make the walls “move” with their movements and bat away flying asteroids. In the latest demo video (above), actors interact with bizarre geometric environments, opening up holes in the floor where they move and walking up fake stairs. Though most of the tech is off the shelf, none of it is intended for consumers — at least, not yet. For now, the company wants to just sell its services for things like music videos, dance performances, art installations and other live events. At the same time, they’re improving the tech to make it more realistic and immersive. “We think that by changing the content creation process, we can open new creative possibilities and achieve unprecedented kind[s] of visuals, ” says Chanel. The next project will test everything Th éoriz has learned so far, both artistically and technically. “We’re trying for the first time to show an artistic video with two dancers, ” Chanel says. “And they’re going to dance and interact in the virtual world, moving through different kinds of totally surreal scenes.” Eventually, Théoriz might make its software available to other companies, but for now it’s just trying to make its services more compelling for artists and audiences. “It’s a new field, ” says Chanel. “We still have to evangelize it and create demand so it can eventually find its place.” And the best way to do that? “Seduce the audience with something new, poetic and unexpected, ” he says. Source: Théoriz

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Théoriz recreates the Holodeck with AR tech and projectors