How to Make a Hot Air Balloon Without Fire

Remember the arcades? Were you saddened when they closed up one by one, leaving no outlet to actually go out and socialize while you played video games? With all the home consoles and internet connectivity, gaming has evolved, but the social factor has been eliminated. Sure we ...more

It's currently 2011, but when you fire up your game console, put your hands on the controller and play the new Dead Space 2 video game, you're warped into the future— into the year 2511— just 3 years after the events that took place in the first Dead Space. And it's sure to be ...more

You're lost.  You're cold, thirsty— you're hungry.  What if you're not much of a hunter?  Maybe you're a gatherer.  So, then you'll eat plants.  But what if you eat something poisonous?  What if you're allergic to it? Okay, so not many people will find themselves in a situati ...more

The worst can always happen. Even if you think you're absolutely prepared, you can somehow find yourself stranded in the middle of nowhere by yourself.  It can happen.  Without a map, without a compass, without a cell phone... without food and water. There are plenty of dange ...more

I like to grow vegetables all year round, and I couldn't afford the big gas bulbs, or the power to run them. The big gas bulbs: can explode can burn you and your plants cost upwards of $50 a month to operate raise the temperature in your home, causing the air conditioning to ...more

Recently, buyout talks between Google and Groupon ended with Groupon turning down Google's $6 million offer. But with Amazon backing LivingSocial, should they have? Your guess is as good as mine, but one thing's for sure— Groupon has a great voice, and they're sharing it with ...more

First off, don't be frustrated. YOU CAN DO IT! Contrary to the message in the image above, it's NOT over. It's just beginning. And when it comes to solving the New York Times crossword puzzle, the old cliche does apply: practice makes perfect. I've read quite a few books and ...more

Since the invention of the mechanical clock, enclosure of the commons, and proletarianization of labor, the alarm clock has been the bane of our existence. While not actually evil, it does represent the constant and uncompromising glare of our owners shaking a patronizing fing ...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

In this article, I'll show you how to make a high-powered, long-range, air-powered rocket gun. This launcher is based on a sprinkler valve, a modified propane tank, and a few other components. Though not hard to make, this device is VERY dangerous! The rocket can seriously har ...more

I finally got around to trying out another one of Will's mad science experiments and found out that this one was actually more satisfying (and less frustrating) than my slightly uncooperative jar jet. There's something very pleasing about making potassium nitrate at home in th ...more

If you've ever had teeth removed/minor surgery, you most likely received some laughing gas, or nitrous oxide. This gas creates a happy, lightened feeling, and causes instant laughter. In this article, I'll show you how to make some. BUT BE CAREFUL!!! DO NOT proceed in this exp ...more

Balloons are fun, but the helium ones are always more entertaining. So today, we're going to learn how to make hydrogen gas by combining toilet bowl cleaner with aluminum foil. With hydrogen, you get the same lighter-than-air properties of helium, plus it will explode! Histori ...more

Taking apart batteries is one of those things that every adult you've ever known has warned you against. Today, we break the taboo and dive into a lithium battery. Lithium has some pretty cool properties—it burns instantly in water and glows blindly bright under flame. And wit ...more

I'm back with the third part to my laser weapon series (see part one and two), and I'll be explaining the function, application, and potential of semiconductor lasers, aka laser diodes. Surely, most of you have used a laser pointer at some point. Whether purchased at a dollar ...more

Ivy League schools aren't just places for people to row and sip their drinks out of glasses normal people would never use (i.e. snifters). They also the place for trolling on a grand scale. Just take a look at these Trolls de la Resistance! Yale's Trolling This little ditty ...more

In a previous article, I showed how to make a powerful airsoft BB machine gun with a portable air supply using about $50 worth of PVC and air fittings. For this project, I have simplified the design to make a machine gun out of only 4 parts totaling about $15 that runs directl ...more

In this article, I'll show you how to built a Wireless Transfer of Energy Transmitter. Simply put, this device will send electricity to a florescent light bulb and light it up, from up to three feet. The idea originally (at least, prominently) came from Nikola Tesla (read more ...more

Snapseed is a highly regarded and award-winning photo-editing app for iOS devices. Originating out of image manipulation specialist Nik Software in San Diego, Snapseed is Apple’s iPad App of the Year and, after using it for the purposes of this review, I believe it points to t ...more

Welcome to Minecraft World! Check out our advanced tutorials and come play on our free server. Note: As I thought of writing something like this, it sounded fairly simple. A one-stop guide for everything related to survival (survival mode, SMP) in Minecraft. But as I progress ...more

Welcome to Minecraft World! Check out our advanced tutorials and come play with us on our free server. As of the 1.0 release, Minecraft has an end. That is to say, The End and the The End has Dragons. This guide is for those of who are want to visit The End and kill an Ender ...more

Looking for something a little more exhilarating this Thanksgiving? Something with a bit more kick? Forget traditional roasted turkey. If you've got the stomach for it, try turducken, a wonderful triplex of turkey, duck and chicken with sausage stuffing and Cajun seasoning. Or ...more

How do you stay toasty warm for the winter season without having to overexert your heating bill? First thing's first—wear a lot of layers. An extra layer of tights, a thick pair of socks, an additional sweatshirt or a wool beanie on your head can go a long way in retaining yo ...more

ZEPHYRS n sing. ZEPHYR gentle breezes 74 points (24 points without the bingo) A few days ago, Cerek Tunca mentioned that a great seven-letter bingo word would be ZEPHYRS, because of the amount of points gained. He's definitely right, with it being more than 20 points by its ...more

The Netherlands are a hotbed of indie game development, which seems appropriate for such a brilliant and eccentric little nation. Two man Dutch indie developer Vlambeer have found themselves in the news more often than most companies of their size, thanks to two great games an ...more

The joys of summer are many! If you, like me, live in a place where the summer is short, you’re going to want to maximize your fun in the sun by doing as many awesome things as possible before the sun goes back to wherever the hell it hibernates during the cold and dark times. ...more

WonderHowTo favorite NurdRage once again triggers the inner mad scientist in all of us (well, all of us WonderHowTo-ians at least). Below, watch what happens when steel wool- found in every common household Brillo Pad- is lit on fire. "Normally we do not think of iron as bein ...more

The United States is a hierarchical country where the weak ones are at the bottom and the powerful ones are at the top. Garment workers are at the bottom of the list although they are the most important. Without them there would be no fashion industry. They sew and cut the gar ...more

Earlier this month, the U.S. Army agreed to drop quite a big chunk of change ($461m to be exact) on 423 M1117 Guardian Armored Security Vehicles (ASV), made by Textron Systems.  What makes the M1117 worth $461m of the army's budget? Well, a Hummer isn't capable of withstandin ...more

Kick Ass Review Part 2: Gameplay and Design In the game, you can play as Kick Ass, Hit Girl, or Big Daddy. Each charater has a light and heavy attack that can be strung together into small combos. Each character also has three special attacks assigned to the Square, Triangle, ...more

Tips If you are taking a relatively uncomplicated flight to post, it may be to your advantage to take your pet along as excess baggage. Ask the travel agent to provide you with a cost comparison of excess baggage versus air freight shipment.(Remember also to save your receipt ...more

As Popsci says, these DIY snow vehicles show winter who's boss. The Snow Chopper Two government employed mechanics in Antarctica built a "snow chopper" with junkyard parts and trash. The engine and track are from a totaled 1981 Ski-Doo Elan, and everything else from "savvy d ...more

Motion trails in Autodesk Maya can be very handy at times when animating your scene. Keying a bone/joint or other object every so many frames can take up quite a bit of time and can sometimes be a big hassle, too. I have found many times when I could have really used one. I al ...more

In this prank, all of the cast members will be involved because let's be honest, it's funnier when all of the "talent" is getting hurt.The premise is that each one of the cast members will have to complete a stunt in order for the next one to start. There will be eight individ ...more

If you bought an iPhone or iPad equipped with USB-C but didn't max out the local storage, there are some great external storage solutions beyond iCloud and other cloud storage services. And now that the iPhone lineup comes with USB-C ports, you have better-performing external ...more

Your days as an ordinary Muggle are over — as long as you have an iPhone. With just a word or two, you can use your iPhone and newfound Muggle-born powers to cast spells or utilize charms just like Harry Potter and team. Only your "wand" is from Apple, not Ollivanders in Diago ...more

With all the time most of us spend on our phones each day, wouldn't it be great if we could get rewarded for our addiction? Well, we can, thanks to various iPhone apps out there that can help us make a quick buck, earn cash back, donate freebies to charity, get complimentary c ...more

Your iPhone is full of features, many of which you might not even know about yet. Still, Apple keeps adding feature after feature with each new iOS update, and iOS 14.5 is no exception. The latest iOS version adds at least 69 features for your iPhone that you should be happy a ...more

Apple's "Spring Loaded" event introduced us to many new and exciting products, including iMac and iPad Pro models with the M1 chip, an upgraded Apple TV 4K, a purple iPhone, and the long-awaited AirTag. However, one of the most anticipated announcements came in the form of a s ...more

Apple just released the second public beta for iOS 14.5 today, Wednesday, Feb 17. The update comes just one day after the company seeded developers the second 14.5 beta. Because of that, we've had 24 hours to sink our teeth in beta 2's new features, like 217 new emoji, Apple M ...more

Apple released the second developer beta for iOS 14.5 on Tuesday, Feb. 16. The update comes 15 days after Apple seeded developers the first 14.5 beta, which included a slew of new features such as default music app support, compatibility with PS5 and Xbox Series X controllers, ...more