We've all been there before: We're in a hurry to get somewhere (often in bad weather), so we get in the car, turn the key in the ignition and.....WHUH! WHUH! WHUH! The darned battery is dead! After a stream of choice expletives (that is, if you're anything like me....;o)), we open the trunk and take out the jumper cables - but what if we don't know how to use them? Even if we do, we can often forget such things in crisis situations when we're pressed for time.
There is nothing more annoying than a greedy roommate. It's absolutely infuriating to wake up and find the cookies your mother just made for you gone without a trace. Your favorite drink is empty and the homemade meal you worked so hard on the night before is nowhere to be found. This irked me so much that I made this shocking cookie jar. When a cookie burglar touches the side and the lid of the jar simultaneously, a small electric shock stops them in their tracks.
Welcome to Microwave Energy—the next part of my Making Electromagnetic Weapons series. For the Electromagnetic Pulse Generator, check out the last three articles (One, Two and Three).
Joel Wulf with the Bremerton Fire Department discusses the right way to use a fire extinguisher. Fire extinguishers are safe and effective for use on small fires, but the entire contents are discharged in 10 to 15 seconds so you should never put yourself in danger by trying to use one to put out a large fire.
Every experienced gardener knows that the secret to better blooms, brilliant greens, and tastier fruits and vegetables is a healthy soil. Improving the soil before you plant is the best head start to growing healthy, hardy growth in your garden.
Bob Schmidt from Home Remodel Workshop demonstrates how to frame a wall 16 inches on center. His tutorial is especially helpful, so pay attention to his tips, tricks, and specific techniques.
Body hacks. So simple, so ingenious. They're the shortcuts in life. We love them, the internet loves them. Back in 2008, somebody named Alicia Goh wrote a friendster blog post that has been passed along far and wide. Her tricks of the body include quick solutions for an itchy throat, a stuffy nose, a dire need to pee, and more. My favorites:
Installing a chandelier can bring a whole new style to your home’s design. Even though it might seem like a job only a professional can do, it really is quite simple. This DIY video illustrates just how easy it can be to install the chandelier yourself.
Here's a fun little hack you can try at home with your kids. The purpose of this tutorial is to teach you how to make this fun toy gun. It's a very simple and economical project. Tools and Materials:
Drywall is a great way to easily cover the studs, electrical, and piping that hide inside your ceiling. You can even use drywall to replace cracked plastered ceilings without the technical expertise needed to smoothly cover a ceiling with plaster.
Installing recessed lighting into your kitchen or living room creates an immediate update to the look of your home! Recessed lighting is very low-key, makes a subtle statement, and yet is elegantly modern. If you are looking for an update to your home's lighting, think "recessed."
One of the most simple and cost effective ways to liven up your landscaping is through subtle illumination. Low voltage lighting is simple to install and offers many benefits including ambiance, safety and security. They can be used to illuminate a walkway or to lighten up your home's street address at night. Today's manufacturers are making low-voltage lighting products geared for the do-it-yourselfer, which makes purchasing and installation easier. These low-voltage kits come with a transfo...
Watch this video from This Old House to learn how to vent a bathroom fan. Steps:1. Screw the humidifier to a wall near the furnace.
One of the most simple and cost effective ways to liven up your landscaping is through subtle illumination. Low voltage lighting is simple to install and offers many benefits including ambiance, safety and security. They can be used to illuminate a walkway or to lighten up your home's street address at night. Today's manufacturers are making low-voltage lighting products geared for the do-it-yourselfer, which makes purchasing and installation easier. These low-voltage kits come with a transfo...
Rockets are lots of fun when you are launching them. However, finding them can be an arduous if not maddening task. Fancy space rockets have lots of tracking equipment to make touchdowns as simple as pie. Today, we look at embedding LEDs into your hobby rocket for easy night flight fun!
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:
In this article, I'll be showing you how to make a cool visual representation of sound using an old cathode ray tube (CRT) television, a stereo, and a sound source. You'll also need a pair of wire cutters, and a few screwdrivers. To properly understand this project, it's a good idea to learn a little bit about how CRT TVs work. Check out this article on how they work.
Nikola Tesla. He was the man behind some of the greatest inventions of all time, including radio and alternating current. But perhaps his most visually fascinating invention is the Tesla coil. While maintaining a low current, it can produce dangerous high frequencies and voltages that can well exceed 1,000,000 volts, discharging it in the form of electrical arcs very similar to lightning.
Beauty is a fine line between art and science for Pe Lang, a Swiss sculptor living and working in both Berlin and Zurich. The autodidact artist specializes in graceful, hand-built kinetic sculptures made of magnetic, electrical and mechanical devices, all of which are elegant and completely mesmerizing. "Positioning Systems - Falling Objects" is one of his newest contraptions, which feels like a mix of home waterfall fountains, mechanical metronomes and a busy manufacturing plant.
The Telegraph reports that a team of researchers lead by Dr. Sang-Woo Kim of the Institute of Nanotechnology at Sungkyunkwan University in Seoul have developed a method for converting the energy from sound into electricity. They've applied the research to the charging of mobile phones, and while you don't have to yell with all the emotion and fear exhibited above by Drew Barrymore in Scream, it sounds like the more energy the better. Dr. Sang-Woo Kim says:
Tired of getting calluses from incessantly strumming along to 'No Woman No Cry'? Just hook up to the brain-music system and use your brain power to play a tune instead. I'm not talking—humming along in your head. The machine, created by composer and computer-music specialist Eduardo Miranda of the University of Plymouth, UK, is composed of electrodes taped directly onto your skull that pick up tiny electrical impulses from neurons in your brain and translates them into musical rhythms on a co...
Why does the world work the way it does? Linda Dong takes basic scientific principles and translates them into beautifully simple, explanatory images.
What feature would we most like to see in the robots of tomorrow? Why, the ability to interact with human beings without crushing them to death, of course. Happily, thanks to a new pressure-sensitive synthetic skin technology, the dream is within reach:
It's one of the most popular queries on the web, meaning the wet electronic disaster is likely a common mishap. There are many answers out there, but if you're lucky enough to have never googled it, pay attention now. You never know when you may drop your cell phone or iPod in the sink...
MacGyver. How can he not be a WonderHowTo hero?
Chemical engineers at Cornell have created a small device that may one day turn troops into real life spider-men. The device would cradle in the palm of the hand, allowing troops to scale walls. It uses an adhesive inspired by the Floridian leaf beetle, an insect that "can adhere to leaves with power 100 times stronger than its own body weight".
Infiniti is like no other car, it has emotion, it has soul, it inspires. There's a difference between being physically transported and emotionally moved, and you can tell them apart when you sit inside this magnificent automobile. Although the Infiniti is like a dream car, it has its problems just like any other brand of vehicle. There's maintenance, minor repairs, major repairs, needed replacement parts, oil changes, headlight adjustment, low tires, transmission and everything else you can t...
A flashlight is one of those things you rarely need, but hardly ever have when you do. The normal-sized ones are unwieldy to carry around, and the small ones that you keep in a purse or car are easy to lose.
If you're the kind of person who misses the bright, sunny days of summer during the colder months, Michail has the perfect addition to your home. He built this "Nuclear Explosion" Chandelier that's as bright as daylight, so you can recreate the feeling of summer, no matter what time of year it is. It puts out 99,400 lumen (a typical 60W light bulb only produces 800 lm), so it takes quite a bit of electricity to run. Michail used 7 metal-halide lamps, which are much brighter and more energy ef...
A smartphone is pretty much useless with a dead battery. When you're out and about, it can be hard to find a place to plug in (if you remembered your charger, that is). But this DIY solar panel backpack made by electrical engineer Theodore Protasiewicz will help you use the scorching sun to your advantage and make sure that your gadgets are always ready to go. Theodore started with just a normal backpack, some solar panels, 18 gauge wire, and a USB port and hacked it into a traveling solar ch...
Rain can make for an amazing photograph, but it can do disastrous things to your equipment. This super simple DIY cover from Purple Summit Photography will keep out the rain so you can capture beautiful shots no matter the weather, and it's made using things you probably have lying around. Photo by Jon Shave
Michael Faraday was an English chemist and physicist - a bona fide electromagnetism and electrochemistry genius. Without him, men couldn't walk on live electrical wires. Wait, what?
Hotly contested video. The question remains, is the science behind the potato fire bonafide or bogus? We have yet to try it over here at WonderHowTo, and the comments thus far haven't indicated a solid verdict. Try it out and let us know! Is this a hoax? Or can you truly start a fire with a potato, salt and toothpaste?
Old Hard Drive + MP3 player = Music This equation just doesn't make sense. If you're an iPod addict, the HD element is redundant! Well, take a second look at what constitutes a speaker and what a hard drive is made of. They are more alike than you'd think.
Learn how to eliminate cord clutter with the folks from Martha Stewart's REAL SIMPLE. Nothing is more annoying than a pile of messy cords. Those dozens of wires around your home?in your kitchen, by your computer, behind your TV?can be a tangled nuisance. Control cord clutter with these quick tricks and clever organizing products. Let REAL SIMPLE guide you on the best solution to eliminate cord clutter.
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 (depending on your experience).
Nikola Tesla In my opinion, one of the most neglected inventors of all time. The names Edison and Marconi come to mind as familiar, but Tesla? Most think of a car. Few know that Tesla is responsible for alternating current, florescent lights, radar, remote control, generators that preform efficiently, the spark plug, and many others. The U.S Supreme Court declared in 1943 that Tesla, not Marconi, was the true inventor of the radio.
Microsoft has had a pretty bad wrap with their Xbox 360 gaming console. Right from the start, the console has suffered a multitude of different hardware failures and design flaws. These problems cause the parts to get too hot and become faulty. I'm sure everyone who's had an Xbox 360 has gotten at least one Red Ring of Death or E74 error.
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.
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