Carbon Dioxide Spray

In this video, I'll be showing you how classic black snakes work and how to make them at home. There are actually two methods covered in the video — one that uses fire and one that does not. So just choose the one that fits best for your situation. Video: . Black Snake Version ...more

If you're a child of the '70s, then you'll probably remember Pop Rocks, those fizzy little candies that created such a buzz. They went out of style in the States for a while, but now they're back with retro status. I was surprised to see them in my kids' Halloween bags a few y ...more

Ah, wine. The bouquet fills your nose. The rich finish fills your mouth with soft flavors of oak and raspberries. The wine warms your belly and soothes your mind. Yeast and their biochemical factory help create this feast for your senses. Thanks to a research group from France ...more

This science experiment deals with sublimation of dry ice into carbon dioxide (CO2) gas. In the video, I'll demonstrate how pushing a quarter into a block of dry ice makes the quarter scream and shake vigorously. Video: . To do this trick, you'll just need a block of dry ice a ...more

Earlier this year, NASA reported on findings that might point to water, and microbial life, on moons orbiting Jupiter and Saturn. Named Europa and Enceladus, those moons contain large oceans under their icy surfaces, which many speculate could hold microbial life. On Earth, l ...more

Each flavor of sake, the national spirit of Japan, comes with its own fans, not unlike whiskey aficionados here in the States. While sake is often called "rice wine," it is more akin to a malted beverage like beer. Unfortunately, many people's first exposure to sake comes in ...more

My years in the restaurant business have taught me many things. Some of those things are best left unsaid and other things require a PhD in vulgarity, but the one thing I learned that I keep coming back to night after night is that you do not have to spend a lot of money to dr ...more

If there's anything I've ascertained from all my candy-eating, it's that Pop Rocks are singularly the most awesome candy ever. The carbon dioxide gas that's mixed with the hard sugar forms a load of tiny, 600-psi bubbles, which vigorously release when they melt in your mouth. ...more

In the perpetual search for a renewable and convenient energy source, our bacterial friends have once again stolen the limelight. Since bacteria multiply so fast, they are the ultimate renewable resource. And since they are living organisms, their metabolism produces by-produ ...more

NASA is going going to Saturn's moon Titan, and the space organization is using augmented reality help them do it. The team at the Johns Hopkins University Applied Physics Laboratory (APL) has been working for years to get its robotic probe mission to Titan approved, and just ...more

Popsci has posted 2009's most amazing scientific images, and there's quite a few great ones in there. A few of our favorites below, click through for all 62. In short, Cow Farts. "Scientists measure methane at the source: In a lush pasture near Buenos Aires, this cow and its ...more

Antibiotics used to prevent diseases in livestock are creating a world of hurt for humans and the soil we depend on for food. Bacterial resistance to antibiotics is a global health issue. The overuse, underuse, and poor use of these life-saving drugs is rapidly removing them a ...more

NextReality will be giving readers a rundown of the augmented and mixed reality news briefs from the preceding week that we didn't cover already. This way, you'll never miss anything of importance in the NextReality landscape, and will always know what's going on with new augm ...more

Pickles are insanely versatile: we eat them on their own as a snack, as a tasty zing on burgers, and some of us even like them in a sandwich with peanut butter. And if you're already an avid reader of our site, you'd know that we're even crazier about pickle juice and its myri ...more

Boxed brownie mixes advertise their convenience compared to homemade brownies—with only a few ingredients, they promise a moist, chocolatey crumb. However, these "instant" mixes still require fresh ingredients and a baking time that matches that of homemade brownies. When you' ...more

It can be pretty tough to fall asleep when your brain is thinking nonstop or anxiety has gotten the best of you, and it seems to only get harder when you're lying in bed listening to yourself breathe. Yet paying attention to that breathing may be exactly what you need in order ...more

There are lots of great reasons for going out to a fantastic coffee shop for a cuppa. Coffee shops have a lovely ambiance, are a perfect place to meet with friends or do some work, and are a great excuse to get out of the house. Seeking out a perfect cup of coffee, however, sh ...more

Ethylene is an invisible, odorless, naturally occurring gas that aids in the ripening process of fruit. As a fruit produces more ethylene, it begins to create enzymes which help break down cell walls and starches, making the fruit softer and sweeter over time. If it weren't fo ...more

Seagrass may help your favorite beach stay a little less toxic. A new study, led by Joleah Lamb, a postdoctoral researcher in the Harvell Lab at Cornell University, found that coastal seagrasses reduce levels of pathogens dangerous to humans and marine organisms in near-shore ...more

With the nation facing a shortage of ventilators for COVID-19 patients and no apparent ramp-up in the production of new ones, engineers, medical resistents, and do-it-yourselfers are sharing plans for homemade versions. But before you go online to start ordering parts for any ...more

By looking for the mechanism that allows influenza A to invade lung cells, scientists also discovered a treatment that might block the virus from taking hold there. An infection of the lungs is called pneumonia, which is caused by bacteria, viruses, and fungi that target alve ...more

As a lover of food, I'm often asked, “If you could only have one food the rest of your life, what would it be?” My answer is always the same: sourdough bread. (Okay, it's not always the same... I usually cheat and say sourdough, fancy cheese, and a good beer.) Admittedly, I'm ...more

We are living in a golden age of craft beers. Originally invented by the ancient Egyptians, every culture now has its own tastes regarding beer. The process of making beer is so multi-faceted, it's a miracle that any gets made at all. However, there are lots of steps along th ...more

Certain ingredients that a professional chef might work with in a restaurant-style setting may seem bizarre, dangerous, and even downright scary to a home cook, and for good reason. One of these examples is lye. Yes, that's lye, the alkaline base used to make soap, dissolve h ...more

Any pizza lover knows that a quality crust is crucial to the whole experience. Good pizza crust should be delicious on its own, for once you get to the edge, it will be without any toppings, sauce, or cheese to disguise a bad character. It should be redolent of fresh, good whe ...more

Since it's October and Halloween is fast approaching, it's time for a series of articles on how to make the coolest Steampunk Halloween decorations for your home! In this installment, we'll look at some jack-o'-lanterns, skulls, and a few other things that are easy to Steampun ...more

Sulfuric acid is mixed with sugar, which is attacked by the acid. The final products are carbon, water vapor, and sulfur dioxide gas. Video: .

That soil under your feet is not just dirt. It is teeming with life that may not change as fast as we would like when challenged by global warming. The warming climate has people wondering about the future. But soil scientists have found a way to look forward — by looking bac ...more

If I were to write a snickerdoodle FAQ list, the top question would undoubtedly be "Do I really need to use cream of tartar in my snickerdoodle cookies?" Don't Miss: 5 Baking Substitutions Every Home Cook Should Know I dug deep into the baking science world to find out why ...more

When alcohol tastes bad, there's little you can do to save it—or so you think. While it might seem easier to toss your entire bottle of old, opened wine, or to give up and drink crappy vodka anyway, there are creative ways to turn a spoiled or just plain bad boozy beverage int ...more

Tonic water, seltzer water, club soda, and mineral water: these 4 types of "bubbly water" are often, erroneously, used interchangeably. But the truth is that each possesses unique qualities and uses that set them apart from each other. Most experts can tell types of bubbly wat ...more

Bad news, guys. The shelf life for liquor leftovers does not apply to your two-buck chuck. While an opened bottle of your favorite whiskey will stay respectable for ages thanks to its high ABV (which makes it inhospitable to outside elements), an opened bottle of merlot will s ...more

While the United States, in general, doesn't have the worst overall pollution, the air quality can drastically change from one day to the next. If you're particularly sensitive to pollutants in the air, there are apps that show how clean or polluted the air is in your area, as ...more

Only three things in life are certain: death, taxes, and getting a dent in your car or truck. Even if you're as careful as possible, you can't always account for runaway shopping carts, wrongly thrown footballs, out-of-nowhere light posts, and other real-life annoyances. Howe ...more

Ever see those cars so covered in dirt, dust, and grime that someone writes "Wash me" on it using their finger? Well, for those cars' sakes, as well as cases less extreme, a word of advice: procrastination is not a solution — it can only compound the problem. Self-cleaning car ...more