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Groovy! Dive into the world's largest online slang dictionary

Popular Science

The free Green's Dictionary of Slang celebrates 500 years of'vulgar tongue.' Breakthroughs, discoveries, and DIY tips sent six days a week. While some terms or phrases may linger for centuries, most of today's slang terminology is more current. That often makes it difficult to keep up with the times, let alone understand casual communications of the past. That's where Jonathon Green came to the rescue. In 1993, Green started compiling 500 years of English slang by sifting through mountains of primary sources.


No, Hungary did not construct heated tunnels for its stray dogs

Popular Science

It's not the worst solution to the issue, but the images are definitely AI. Breakthroughs, discoveries, and DIY tips sent six days a week. It's increasingly difficult to keep track of all the generative AI slop currently fooling unsuspecting internetgoers on any given day. Earlier this month, a (fake) image went viral after enough people genuinely believed North Carolina conservationists kept wild horses warm during winter storms by wrapping them in fiberglass insulation . Now, another hoax is tugging on the heartstrings of animal lovers.


Hobbyist builds retro Apple Macintosh inside toy clock

Popular Science

The DIY project mixes nostalgia with one of tech's most iconic designs. Breakthroughs, discoveries, and DIY tips sent six days a week. The Apple Macintosh personal computer is an iconic piece of tech history--with an emphasis on the word Compared to the 32-bit PCs of yesteryear, today's hardware is so advanced that it often feels like trying to compare a gas-guzzling Ford Model T to today's all-electric cars . Combine that emotion with one of the best examples of computing miniaturization on the market, and you get a DIY project that pays homage to the computer's earliest days while celebrating how far the tech has come since then. I turned a CLOCK into a vintage Mac! YouTube channel This Does Not Compute recently showcased their journey to turn a tiny desk accessory into a full-fledged Macintosh computer.


Deadly scorpions are picky about their soil

Popular Science

Dirt may help map where scorpions live--and potentially save lives. Breakthroughs, discoveries, and DIY tips sent six days a week. Scorpions sting between 1 and 2 million people every year, and while most victims only endure temporary pain and swelling, the injuries can still prove fatal. Researchers estimate that the predatory arachnids are responsible for the deaths of at least 3,000 children annually. Remote regions without access to lifesaving medical treatments face the biggest uphill battle, scorpions still remain an issue in urban regions like Morocco .


550 pigeons rescued in North Carolina

Popular Science

The birds can make good pets, but only if taken care of properly. Breakthroughs, discoveries, and DIY tips sent six days a week. Rescuers in North Carolina recently saved over 500 pigeons from a home in Greensboro. Guildford County Animal Services and two other bird rescues based in Charlotte initially believed that the call was for about 300 birds . Instead, they found about 550 pigeons inside of a shed behind the home, hidden from the street.


How do birds stay warm in winter?

Popular Science

How do birds stay warm in winter? Puffing up is just the start. Breakthroughs, discoveries, and DIY tips sent six days a week. Then you notice a robin hopping from branch to branch. Nearby, ducks are calmly swimming in the pond and waddling around on the ice.


Fungi help turn old mattresses into insulation

Popular Science

Every day, 50,000 mattresses are tossed in the trash in the United States. A relative of penicillin could be the cure. Breakthroughs, discoveries, and DIY tips sent six days a week. Shopping for a new mattress can be stressful--this is something you plan to sleep on for years to come, after all. But your old one can be its own problem for the environment .


Bubble wrap-like material could help insulate glass windows

Popular Science

Only five millimeters of this experimental material called MOCHI can shield your hand from a flame. Breakthroughs, discoveries, and DIY tips sent every weekday. A well-placed window can brighten a room with natural light and offer scenic views of the outside world. Buildings consume around 40 percent of society's energy production, and much of that energy is wasted due to poor insulation in the winter and too much heat retention during the summer. Even the most eco-friendly windows inevitably add to this energy drain.


Leibniz's Monadology as Foundation for the Artificial Age Score: A Formal Architecture for Al Memory Evaluation

arXiv.org Artificial Intelligence

This paper develops a mathematically rigorous, philosophically grounded framework for evaluating artificial memory systems, rooted in the metaphysical structure of Leibniz's Monadology. Building on a previously formalized metric, the Artificial Age Score (AAS), the study maps twenty core propositions from the Monadology to an information-theoretic architecture. In this design, each monad functions as a modular unit defined by a truth score, a redundancy parameter, and a weighted contribution to a global memory penalty function. Smooth logarithmic transformations operationalize these quantities and yield interpretable, bounded metrics for memory aging, representational stability, and salience. Classical metaphysical notions of perception, apperception, and appetition are reformulated as entropy, gradient dynamics, and internal representation fidelity. Logical principles, including the laws of non-contradiction and sufficient reason, are encoded as regularization constraints guiding memory evolution. A central contribution is a set of first principles proofs establishing refinement invariance, structural decomposability, and monotonicity under scale transformation, aligned with the metaphysical structure of monads. The framework's formal organization is structured into six thematic bundles derived from Monadology, aligning each mathematical proof with its corresponding philosophical domain. Beyond evaluation, the framework offers a principled blueprint for building Al memory architectures that are modular, interpretable, and provably sound.


2025 Home of the Future Awards: 25 products that'll improve your everyday life

Popular Science

At the 1933 World's Fair in Chicago, an exhibit called The Home of Tomorrow laid out a vision of a futuristic living space. It included outlandish predictions including personal helicopter pads, but it also foreshadowed central air conditioning, automatic dishwashers, and other innovations that have become integral parts of modern life. As we envision the home of the future, it's easy to get caught up in sci-fi-inspired predictions of fully autonomous homes serviced by robotic butlers and disembodied virtual assistants that remove the humanity from our living spaces. Here at Popular Science, we reject that vision. For the inaugural Home of the Future Awards, we have selected 25 products that augment life at home by making it more efficient, affordable, accessible, and--ultimately--more enjoyable. We test, preview, and evaluate hundreds of products per year and these products deserve a chance to cohabitate with you and the people who matter to you. A flat top grill is one of the most versatile ways to cook just about anything from pancakes to burgers, but temperature control is key.