Homemade Vacuum Pump

When you're using vacuum power, moving water, or compressing air, it's more than likely being done with some sort of pump. I'll be needing a pump for some of my future projects, so in this tutorial, I'll be showing you how to make your own customizable PVC hand pump that will ...more

The following video demonstrates and explains a classic physics experiment called a vacuum cannon. Typically these cannons are made on a much smaller scale to fire ping pong balls, but I wanted to keep things interesting with this 4" diameter monster. Video: . Since this canno ...more

Fight me all you want, but it ain't a party without alcohol—whether it's a Halloween party, Christmas party, dinner party, or even a damn wedding. (If you think that people will stick around after dinner for a dry wedding, then you're sorely mistaken.) And while we'd all love ...more

Unless you're a pretty avid home cook, you probably don't know a lot about sous vide. Sous vide is a low-temperature cooking method where food is cooked in vacuum-sealed plastic bags in a water bath for a prolonged period of time. Sous vide machines are used mostly in high-en ...more

In this series on weaponized lasers, I'll be exploring the function, operation, strength and building instructions for three basic laser weapons; CO2, Diode, and Flashlamp. These laser types are just a few of many, selected because of their simplicity and basic construction (d ...more

Meat and bourbon is a delicious marriage—whether it's bacon-infused bourbon, or bourbon drenched steaks. The recipe below is adapted from Nancy's bourbon-marinated rib eye recipe over at 'A Recipe a Day'. For this version, we used the classic New York strip, with a little sous ...more

If you're going to build yourself a water gun to cool down this summer, or maybe just a useful water pump, you'll need some check valves. However, the most expensive parts of a water pump or DIY super soaker are usually the check valves. So, let's make some from scratch for as ...more

The best sangria I ever had in my life was made by a Spanish friend for my birthday party. The ingredients included a giant box of Franzia red, one bottle of Bombay Sapphire Blue, one cup of sugar, a liter of 7-Up, and some cinnamon sticks. She put everything but the 7-Up in a ...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

Here's an awesome weekend project that could leave you with a fearsome "Ping Pong Ball Mauler" capable of firing hundreds of balls a minute at your unsuspecting neighbors. Christian Reed built it out of a poly drum and a homemade pneumatic device. He turned a standard shop vac ...more

This is no paper gun like you've ever seen before. Seriously. Tacome1942's homemade paper shotgun is a life-sized, fully functional Remington 870 replica. It would be hard to tell it apart from the real deal, not to mention it practically sounds like an authentic shotgun, too. ...more

There's no shortage of ice cream recipes out there, but one ice cream shop in London has found a unique recipe to sell to its customers, and of course it's controversial—breast milk ice cream. The Icecreamists make the ice cream from donated breast milk, straight from healthy ...more

Nothin's better than freshly homemade popsicles in these hot summer months. Design Sponge has posted three delicious-sounding recipes by Ashley of Small Measure. Ashley recommends stretching your imagination: "One recipe uses coconut milk as a base, another uses yogurt, and t ...more

If you found the world renown Body Worlds exhibition gnarly and perverse, perhaps you'll find this latest parade of plastination a little less so—considering we don't share the same DNA as these specimens of jerky-in-the-name-of-science. The Koerperwelten der Tiere—or Animal B ...more

You've seen his explanation of a combination lock's inner workings. You'll never lose another game of Jenga, thanks to his winning wooden pistol. And nearly 4 million YouTube users have marveled at his wooden marble machine sculpture. He's Matthias Wandel, and he's accomplishe ...more

I have an absolutely wonderful time making projects and writing articles for all of you mad scientists! Today, I will bring you behind the scenes for a look at the workbench, tools, and software that make the Mad Science World possible. Above is my beautiful workbench! My who ...more

I love making my own printed circuit boards. It really gives a professional look to a finished project, and having all the design files means I can whip up another batch whenever I need to. However, when I need to make, say, three thousand swarmbots or fill an order for a doze ...more

Air mattresses are great when you have guests sleeping over or want to camp in total comfort, but air mattress pumps are a different story. An electric one is loud and doesn't do much good at the campsite, while a manual one is easily broken or forgotten about. Luckily, there ...more

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lac ...more

Do not point this gun to other! Kids SHOULD NOT use the darts in this tutorial as the ammunition, you should only use soft things like the cotton head of the ear-cleaner stick! Step 1: Materials Preparing 1 empty dishwater bottle with the cap like this 1 empty glass cleaner ...more

Warm water is an essential part of life that we sometimes tend to take for granted. Over one billion people, or roughly one-seventh of the world's population, have no access to hot water. Warm water is not only comforting when showering and bathing, but also helps the body ge ...more

Oatmeal isn't the most glamorous breakfast, but it's definitely one of the best. It's healthy, filling, delicious, and easy to personalize. And, if you have instant packets, oatmeal is also a very quick and easy breakfast. Like so many foods, instant oatmeal is healthier and ...more

Spiders are common pests that typically prefer to live outdoors. However, insects and warmth will eventually attract them into our houses. They like to spin their webs in corners, crevices and unused areas of your house. Most species are harmless and even act as a natural repe ...more

When a stuffy nose hits, it feels like breathing clearly and easily may never come again. Allergies, colds, and even changes in weather can leave our sinuses blocked, with medicine seeming like the only option. But don't break out the medication just yet — relieving the pressu ...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

There are two kinds of people standing in the international section of the grocery store: the kind who love Pocky and the kind who don't yet know that they love Pocky because they've never had it. Don't Miss: Make Kit Kats in Any Flavor, Color, or Size You Want Pocky is a c ...more

Whether you simply can't stand it or consider it a separate food group (or not food at all), there's no denying that Spam is everywhere. America's favorite canned mystery meat got its humble beginning in Minnesota, but is now used in dishes and found in homes around the globe. ...more

WonderHowTo is a how-to website made up of niche communities called Worlds, with topics ranging from Minecraft to science experiments to Scrabble and everything in-between. Check in every Wednesday evening for a roundup of user-run activities and how-to projects from the commu ...more

The thought of peeling tomatoes for pasta sauces and soups has long been an overwhelming idea for us, one we often steer clear from when reading recipes or searching out new dishes to create. Even the methods that are supposed to speed up the peeling process (like roasting, po ...more

Here's how to make dry-ice at home, or wherever you feel like it! All you need is a pillow case, and a CO2 fire extinguisher. Video: . WARNING: Dry Ice is extremely cold! (-78C/-109F) and can cause instant frost-bite to exposed skin. This project should not be attempted withou ...more

Marinades are among my all-time favorite tricks as a cook for several reasons. They're easy like Sunday morning, they let time do what it's supposed to, which is work for you, and you get a huge return for relatively little effort on your part. In a pinch, I've used store-bou ...more

Just because a problem is small or superficial doesn't mean it can't annoy the living crap out of you. Others may think you're overreacting, or even have the audacity to roll their eyes, but you're in your own personal hell. First-world problems, white whines—call it whatever ...more

There's a lot that goes into making a nice crystal radio set, so this is going to have to be broken down into two parts. The first part is the actual making of a functional radio, and the second part is making the whole arrangement look nice. In this part, I'm actually going t ...more