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‘Scanners’ Is More Than Just a Very Excellent Exploding Head

When movie fans think of Scanners, the immediate association is its spectacular exploding-head scene. In fact, when anyone thinks of spectacular exploding head scenes… Scanners is always on top of the pile, right next to Dawn of the Dead and Maniac. But while the work of special effects legend Dick Smith deserves much applause (in addition to Scanners, his credits include The Exorcist and Death Becomes Her), there is more to David Cronenberg’s 1981 thriller than one gloriously gory splatter. Ev

Valerion launches new premium projector with anti-rainbow effect technology

After a successful Kickstarter campaign, Valerion is formally announcing its new premium projector, the VisionMaster Max, at IFA 2025. The boxy little projector offers improved contrast and brightness, but the feature that should be most interesting to home theater aficionados is how it tries to address the "rainbow effect" common in some cheaper projectors. Cheaper DLP projectors sometimes display stuttery strobes of color when the projector's color wheel is forced to quickly shift between col

Infamous ‘Erin Brockovich’ Toxin Polluted Air for Months After LA Fires

The January wildfires left many scars on the city of Los Angeles, from rubble-reduced homes to torched abandoned vehicles. Though cleanup crews quickly cleared much of the debris, one alarming invisible impact lingered over the city for months, a new study suggests. In late March—more than two months after the flames died out—researchers detected levels of carcinogenic hexavalent chromium (a.k.a. chromium-6) 200 times greater than baseline levels for LA air. If this pollutant sounds familiar, y

People Are Trying to ‘Deprogram’ Their MAGA Parents Through Book Clubs

The idea of starting a book club came to Valeen Heinle late one night in July. She was having a particularly bad argument with her Trump-supporting dad over Israel’s war in Gaza and its devastating impacts on children. "I'm begging you to just try and learn something that isn't from Facebook, Fox, or Newsmax," Valeen, a 38-year-old registered Democrat who works as a pet sitter in Denver, wrote to her dad via Instagram DM after they exchanged a series of posts about Gaza. “Read a book on the his

Runway is going to let people generate video games with AI

So far, Runway is known for bringing generative AI to Hollywood. Now, the $3 billion startup is setting its sights on the gaming industry. This week, I was granted access to a new interactive gaming experience that Runway plans to make available to everyone as soon as next week, according to CEO Cristóbal Valenzuela. The consumer-facing product is currently quite barebones, with a chat interface that supports only text and image generation, but Valenzuela says that generated video games are com

Homotopy Equivalences

Previously: Fibrations and Cofibrations. In topology, we say that two shapes are the same if there is a homeomorphism– an invertible continuous map– between them. Continuity means that nothing is broken and nothing is glued together. This is how we can turn a coffe cup into a torus. A homeomorphism, however, won’t let us shrink a torus to a circle. So if we are only interested in how many holes the shapes have, we have to relax our notion of equivalence. Let’s go back to the definition of home

I replaced my living room TV with this 4K laser projector for a month - and didn't regret it

ZDNET's key takeaways Valerion's VisionMaster Pro 2 retails for $2,999. This premium-built laser TV projects up to a 300-inch screen. It's still not ideal for brightly lit rooms (like all projectors). $2,999 at Amazon I chose the word "glorious" in the headline for this review because that word sprang to mind when I first laid eyes on the VisionMaster Pro 2 projector from Valerion -- and that was before I even plugged it in. Valerion, a sister company to Awol Vision, is just over a year old,

Ancient Roman Street Vendors Served Up Songbirds

Ancient Romans in need of a quick bite often chowed down on fried songbirds, new research suggests. A researcher working on the island of Mallorca found bones of song thrushes inside a trash pit near the ruins of an ancient fast food joint. The study, published in May in the International Journal of Osteoarchaeology, suggests that thrushes were commonly sold and consumed in Roman cities. This challenges the long-held belief that these small, speckled birds were a delicacy reserved for elite ban