Mad Science Features
How To: Remote Control Anything with a DIY Sonic Screwdriver and Light Sensors
Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons.
Glass Cutters Are for Tools: How to Dissolve Glass Using Sodium Hydroxide
Glass is one of the least reactive substances known to chemistry. It is the standard container material for almost all lab chemicals because it's so inert. But there are a couple of substances that have strong reactions with glass. Sodium hydroxide, aka solid drain cleaner or lye, can easily be stored in glass as a solid, but when molten, it reacts violently with glass and can actually dissolve it away! So, the next time you clog up your drains with broken glass beakers and flasks, rest assur...
How To: DIY Flanagan Neurophone Lets You 'Hear' Sounds Through Your Skin
In 1958, Patrick Flanagan invented the Neurophone, a device patented in 1962 that allows radio signals to be picked up by the human nervous system. The skin is the organ that receives the signal, converting it into a modulated molecular vibration, which the brain interprets into sound. Basically, it gives one the ability to 'hear' through the skin, making it sound like the audio you're hearing is actually in your head. It's kind of like having headphones in your brain. The only problem was th...
How To: Create Practically Anything, Part 1: Fritzing Circuit Boards
Making your own circuit boards can be a daunting challenge. You have to design a schematic, test it on a breadboard, design the board layout, and then after all of that, you still have to print and etch a board!
Science Gives You Super Powers: How to Shoot Fireballs from Your Hands
Everyone dreams of having super powers. Flying, invisibility, and x-ray vision are popular, but my favorite is fire power! I've always wanted to be Wheeler from the Captain Planet kids show, and now I can with these handheld fireballs of awesomeness. The fireballs burn at a low temperature, so they are safe to hold in your hand and throw (shoot) at imaginary enemies.
How To: Your Personal NASA Program from Garbage: How to Build a Pulsing Jar Jet Engine
Jet engines combine oxygen from the surrounding air with on-board fuel to burn at very high temperatures and create thrust in the direction of the flame. Rockets, which we will learn about in a later post, are similar but carry oxygen internally and can therefore function in space!
The Art of 3D Printing: Turning Cool Ideas into Physical Three-Dimensional Models
Three-dimensional printing is one of the many wonders of modern technology. It's the first step towards real life Star Trek replicators and Timeline-esque teleportation chambers. While we aren't at the level of reconstructing strands of DNA, it's already possible to make tons of fun and useful designs on a 3D printer.
How To: Create Your Own Cast and Oogoo to Give Your DIY Gadgets the Shape You Want
I think it's fair to say that every maker yearns for a 3D printer. You can replace circuit board connectors, fix your glasses, create ski grips, and make whole machines out of printed plastic parts—even a 3D printer. But without a 3D printer on hand, you can always resort to Sugru.
How To: Send Your Secret Spy Messages Wirelessly Through Light with This DIY Laser Audio Transmitter
Looking to transmit some super-secret audio communications to your other spy buddies? A laser is the perfect tool for getting your sounds heard from a small distance—without anyone intercepting them— even if it's just a cover of your favorite pop song. A laser audio transmitter uses light rather than radio waves to transmit sound. This is a much more secure way to send audio communications because the laser is a focused beam of light, whereas radio waves are not controlled, so they can be pic...
News: This Giant Glass Globe Turns Moon and Sunlight into Power—Possibly Even Solar Death Rays!
André Broessel of rawlemon has developed a solar energy generator that can use both sun and moonlight to create usable power. Oh... and it's gorgeous. The device is essentially a huge glass sphere filled with water that uses a ball lens to refract light in a way that increases energy efficiency by 35 percent. It's completely weatherproof and has an optical tracking device, meaning that it can be incorporated into architecture. Here's a concept design of how it could be used to power buildings...
How To: Make a "Joule Thief" and Create Zombie Batteries for More Power After Death
Just about every household gadget we own runs on 1.5 volt batteries of one size or another. Wouldn't it be great if you could reuse all of those dead AA, AAA, and D batteries after they've passed on? It turns out you can make a simple circuit called a "Joule Thief" to reanimate the undead flesh of your deceased batteries and create a zombie battery.
Supercool Science Trick: How to Turn Water into Ice on Command
This is an awesome little science trick that has to be seen to be believed. Simply by emptying a bottle of "supercooled" water into a glass, you can watch it turn into ice right as your pour! It's no magic trick or chemical craziness—it's normal water and you can try it yourself right in your own home.
How To: Make Your Own "TV-B-Gone" to Silence All Televisions That Oppose You
Whether you're in an airport, restaurant or waiting room, the insidious grip of televisions on human life is omnipresent. Sometimes it's nice to talk to other human beings while looking at them directly—actually hearing what they have to say.
How To: Turn Ordinary Water into Explosive Gas That Goes KABOOM!
Maybe not water per-se, but with this simple technique you can turn one of the most abundant materials on earth into a highly explosive gas.
DIY Lab Equipment: How to Etch Your Own Circuit Boards Using a Laser Printer
Homemade circuits are amazing. You can build any kind of circuit on a simple perfboard, as we have seen in previous projects. However, some projects require very tiny circuit boards. We could special order some boards from a printed circuit board (PCB) factory, but that will most likely involve a high price per board and a few thousand miles of delivery service to pay for.
Create Tomorrow's Fuel Today: Split Hydrogen and Oxygen from Water with Pencils and a Battery
Science-fiction writer Jules Verne predicted many scientific breakthroughs, including the moon landing, tasers, and nuclear submarines. In his 1874 book The Mysterious Island, Verne writes:
How To: Make Super Fizzy Carbonated Beverages at Home with Dry Ice
Want to make your own soda or maybe just bring a dull one back to life? Homemade sodas don't always live up to the store bought ones because they can taste flat by comparison. This quick and easy method makes super fizzy drinks with only four ingredients. Because putting dry ice in a sealed bottle would effectively turn it into a bomb, you'll need to make a safety valve for the bottle.
How To: Design Your Own Custom Arduino Board Microcontroller
Microcontrollers are great. You can do anything from water your garden to catch wildlife trash diggers in the act—and on the cheap. I prefer to use the Arduino microcontroller because of the large and helpful community built around the website. Though it is my favorite, there are some drawbacks to using an Arduino board in every project. It gets expensive, the board can take up too much space, and the rat's nest of breadboard wires are a pain to repair.
DIY Lab Equipment: Build Your Own Reflow Oven Out of a Toaster for Precision Temperature Soldering
Ever wonder how all of those tiny chips and components can fit inside your laptop or smartphone? If you tried to squeeze them in there yourself, your laptop would quickly become too heavy for your lap, and your mobile phone would need wheels to stay mobile.
How To: Make Surface-Mount Electronics at Home for Smaller, Cheaper DIY Gadgets
Whenever we make a homemade circuit, we use what are called through-hole components. Any components with long metal leads is a through-hole component. They are great for soldering to, but it's tough to fit enough through-hole resistors and capacitors into a smartphone. To get those last microns, we have surface-mount components for SMDs (surface-mount devices). These are all of those teeny, tiny things you see when you crack open your digital camera or laptop case.
How To: Wildlife Photography with a DIY Motion-Triggered Camera
Even if you live in a big city, chances are you have some wild raccoons or foxes that cannot abide a vertical trash barrel. While apparently omnipresent, these phantasmic critters usually vanish in the night leaving only a shameless trail of refuse you never wanted to see ever again. While I haven't found a way to stop them, I can help you snap some photos of the dastardly creatures.
How To: Make Your Solar-Powered Projects More Efficient with This DIY Sun Tracker
Omniscience is not required to make some really cool shit happen. Yes, it took a while, but we can make fuel from the Sun! Solar panels are basically our answer to God. And now that we can make solar electricity, finding the most efficient way to harvest it is tricky.
News: This Thermal Lance Fueled by Bacon (Yes, Bacon) Can Cut Right Through a Steel Pan
You knew that the food you eat gives you energy, but did you know it can actually power a thermal lance with enough heat to burn through steel? A thermal lance, as in, the tool used to demolish buildings and bridges.
How To: Build a Frame for the Mega Solar Scorcher
Here is how you can build a frame for your MEGA SOLAR SCORCHER in under an hour, and for less than $8!! This is effectively a 4 foot magnifying lens that concentrates insane amounts of heat from the sun. What would you do with all this free solar power? My design for this custom "Scorcher Frame" is easy to use, and incredibly cheap to make, as you can see in this step-by-step video.
How To: Build a Light-Triggered Alarm to Catch Your Food-Thieving Roommate in Action
When I was attending college, my friends had a phantom thief in their dormitory. Almost every night, a different item of food would go missing, never to be seen again. There was constant speculation as to whom the thief was and how to catch them. Security cameras were deemed too invasive, but none could think of another method of surveillance... until today.
How To: Build a Bomb-Defusing Robot Tank for the Revolution
War leaves a lot of stuff behind. Torn families, delegitimized institutions, mass graves, and unexploded ordinances litter the post occupation landscape. Whether or not you have driven the imperialist out, or are still in the phase of armed resistance, you will need the ability to safely diffuse bombs. My bomb defusing Silvia-bot can do it all. She can catch grasshoppers, cut wires, collect samples, tase enemies and even play chess! Materials
How To: Make Your Very Own Blinding Sunbeam with a Lithium AA Battery
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 with just one AA battery, you can make a blinding light beam inspiring supernatural awe in all dictatorial adults who doubted you.
News: Brain Hacking and Thought-Controlled Quadcopters: The Good and Bad Future of Mind-Reading Devices
Until recently, brainwave-reading devices have pretty much only existed in science fiction. Sure, electroencephalography (EEG), the technology that powers these devices, has been used in medicine and psychiatry since the late 1800s, but diagnosing people's brains and reading their minds are two totally different things. The first EEG headsets available to the public were used mostly in gaming and even in fashion, but in the last few years, they've gotten a little more sophisticated.
News: You Can Now Pilot Your Own 13-Foot Tall Weaponized Mech (For Just $1.35 Million)
The streets of Tokyo are about to get a lot scarier (or more awesome), after Suidobashi Heavy Industries unveiled their latest project: a 13-foot tall, customizable, piloted robot. It's armed to the teeth with a water bottle rocket launcher and a BB Gatling gun capable of firing 6,000 rounds a minute; all for the very reasonable price tag of around 1.35 million dollars.
News: This 1974 Gas-Guzzling Beetle Is Now an Eco-Friendly Electric "Voltswagon"
Want an electric car without the price tag? You could always build your own, or maybe just hack your old gas guzzler into an eco-friendly electric machine... This weekend at Defcon, security consultant David Brown showed off his "Voltswagon" project, a 1974 Beetle named Shocky that he converted to electric for only $6,000. He removed the old combustion engine, radiator, and a few other unneeded parts to make it lighter. Then he loaded it with batteries front and back, ten Interstate DC-29, 12...
Contest: Spud Gun
Well here it is, this is an older pic but it still works, the only change from this pic and the current cannon is that I have put some duct tape around the PVC bonds and am planing on spray painting it. The compression chamber is over a foot and a half long at 2" diameter PVC to push the spud or what ever you can out the cannon. The barrel is a little more than a foot long. This was originaly a prototype with all 1" PVC pipe but I cut it all off and attached a few PVC sizers and made the barr...
How To: Trigger Anything from Anywhere with Just a Phone Call
Smartphones are crazy awesome. You can do your banking, track your children, find directions, and even pretend to have a mustache. The only thing that these personal supercomputers are missing is physical interaction with the environment.
How To: Make Dry Ice at Home Using a CO2 Fire Extinguisher
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.
How To: Launch 1,500 Ping Pong Balls into the Air with a Homemade Liquid Nitrogen Bomb
You can do a lot with liquid nitrogen, including freeze and shatter gummy bears, make homemade Dippin' Dots, and scare the crap out of your friends by dipping your hand in it! If you can't get your hands on any, you can even make it yourself. Or, if you want to try something a little more destructive, you can use it to make an explosion and send 1,500 ping pong balls flying.
How To: Make a Fake, Pirate-Worthy Gold Bar on the Cheap
I loved the Gold Rush unit back in third grade. We went up to the American River and panned for gold, and my panning skills balled above all. I got like three tiny pellets. Of course, it was all fool's gold, aka pyrite, but it was still pretty legit. And this was before wearing gold chains was cool—or not.
How To: This DIY Double-Bladed 'Stun Sword' Shocks and Slices Simultaneously
When it comes to melee combat, two swords can definitely be better than one. Throw a stun gun on top of that and you've got a seriously terrifying weapon. That's exactly what YouTuber jonathanj9969 did with his homemade double-bladed stun sword.
How To: Build Your Own Projection Microscope with a Syringe, Laser Pointer, and Drop of Water
Have you ever wondered what sort of microscopic critters are floating around in your water? Well, you can find out with just a few bucks worth of materials and a laser pointer. Really. That's all it takes to build your very own homemade laser projection microscope, aka a water drop projector.
Improvised Handheld Fireworks: How to Make Homemade Sparklers
The big fireworks day is almost here, but most of you are limited in what you can do when it comes to celebrating the Fourth of July with a bang. Unless you live in a dry area prone to wildfires, one type of fireworks you can probably still legally buy are sparklers.
DIY Hydrogen Fuel Cell: How to Create the Fuel of the Future at Home
As some of you Mad Science readers will remember, we recently covered the separation of water into hydrogen and oxygen using electrolysis. Passing a current through water can rend it apart, but we can also recombine that oxygen and hydrogen to make electricity! This is the principle behind those vehicles run by hydrogen fuel cell engines.
News: This DIY Mini Tesla Coil Packs 380,000 Volts of Lightning
At one point in time, Tesla coils were actually used for things like wireless telegraphy and electrotherapy, but as technology advanced, they shifted to a slightly more enjoyable purpose—entertainment. What's even more entertaining than using a Tesla coil? Building your own. One of the best portable Tesla coils out there is this mini acrylic version by Daniel Eindhoven, aka TeslaCommander. It's made almost entirely of acrylic plastic, minus the steel sphere, and copper wire and tubing. When t...