Magnetic

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...more

Samy Kamkar, the security researcher known for the MySpace Worm and his combination lock cracking skills (using an online calculator), is back—and this time, he's after your credit cards! Well, not really, but his latest project, dubbed MagSpoof, can spoof any magnetic stripe ...more

This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catas ...more

In this article, I'll be covering Triggers and Coils, part two of the series (see part one here). Generally, a simple EMP generator consists of four components; a capacitor, a transformer, a trigger and a coil of copper wire. The transformer component can be varied, but the co ...more

It's best known as a children's toy, but kids aren't the only ones who can appreciate the unique and marvelous properties of Silly Putty. It's an incredibly fun silicone polymer that almost seems like a scientific anomaly, thanks to its viscoelastic non-Newtonian flow. This am ...more

If you've ever been inside of a real laboratory, you probably noticed how expensive the equipment is. You'd never be able to afford even just one of those ultra high-tech machines required to splice genes or split atoms. Even the lesser machines can be prohibitively costly, in ...more

Interested in taking a few snapshots of the likely auroras from the recent solar flare the Sun sent our way? It's reported that we'll have the biggest solar radiation storm in over 7 years thanks to the Earth-directed CME (coronal mass ejection). But if you live in the right ...more

"Magnetic fields are everywhere- you just can't see them." The science-inspired-art project, Magnetic Movie, by Semiconductor, demonstrates the imaginary "secret lives of invisible magnetic fields". Don't miss it - it's an amazing project. The magnetic fields are beautifully ...more

Everyone has a junk drawer in their kitchen. It's like an unspoken rule. The junk drawer is full of all the strange bits of what not that accumulates in your home over time. Everything in there is useful, and you never want to throw any of it away for fear that you might need ...more

Giveaway Tuesdays has officially ended! But don't sweat it, WonderHowTo has another World that's taken its place. Every Tuesday, Phone Snap! invites you to show off your cell phone photography skills. Submit your best shot to our weekly competition for a chance to win an awes ...more

The guitar is a double-edged sword. I've played all my life, and though I love the act of guitar playing, there are quite a few people I could live with never hearing play again—ever. Paradoxically, it seems that the less dexterous and committed to practicing are the more lik ...more

Michael Faraday was awesome. He discovered electromagnetic induction, diamagnetism and electrolysis, and he invented the Bunsen burner (before it was the Bunsen burner). Because of his work, we can make suits that can withstand 1,000,000 volts of electricity and cases to prote ...more

Magnetic ink is generally used by the banking industry to allow computers to read information off of a check, but that doesn't mean you can't have some fun with it. The guys over at openMaterials have figured out a great recipe for a DIY magnetic ink that you can use for an in ...more

Magnetic knife strips are really handy. They allow for the removal of that huge knife block on your countertop, freeing up valuable counter space. They allow for easy access to your knives as you can mount them pretty much wherever you want. Plus, they look really cool, too! ...more

Spices are a necessary ingredient in any kitchen. It doesn't matter how good of chef you are—without proper spices, your food will always fall flat. But where do you store all of those herbs and spices needed for kitchen mastery? You could try the cupboard, but then you will ...more

So simple yet so brilliant: Designer Jung Soo Park found a way to improve a “run of the mill” hammer by incorporating a magnet at the end of the handle. It holds a few nails while you’re working and if you drop a few on the floor, the magnet makes it easier to pick them up. S ...more

El sistema de levitación magnetica, tambien llamado Maglev, empujan a los trenes mas modernos del mundo. y constituyen la gama de vehiculos mas sofisticados dentro del grupo de TAV (trenes de alta velocidad). En HD.

Gravity can be a real pain when you are trying to finish a project and your supplies wind up on the ground. For wooden hammers, place your hammer in a vice grip with the handle facing up. Drill a small hole and place a metal bolt inside and glue it the magnet with glue or sil ...more

Check out this video to learn how to do this awesome magnetic polish nail art design! Video: . For Nail art tutorials - http://www.youtube.com/user/SuperWowstyle?feature=mhee Thanks for watching! Do share your opinions on this polish design if you wish to :-) Don't forget to ...more

This is really cool. He goes pretty deep into the principles of magnetism before actually showing how his generator comes together and works. Great information.

A spare key is one of those things that never seems like a huge deal until you need it. If you've ever lost your keys, had them stolen, or locked yourself out of your house or car, you know how difficult and embarrassing it can be trying to get your door open. So, how would y ...more

Besides obvious features like a touchscreen and biometric sensors, the modern smartphone comes with an array of state-of-the-art hardware in the form of various sensors that help your device sense the environment around it. And if you have a Samsung handset, chances are, you h ...more

Locking your keys inside of your car is frustrating, to say the least, especially if you're in a hurry to get somewhere. You can always call AAA roadside assistance or a locksmith, but you'll probably have to fork over some money, as well as wait for them to get to you. You mi ...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

At the recent DefCon conference in Las Vegas, researchers opened many of the top commercially available gun safes with simple tools like a straw or a paper clip, and in one case, just by shaking it a bit. The investigation began after the researchers, Toby Bluzmanis, Marc Tobi ...more

The Earthen Ring Quartermaster is as elusive as a long-beaked echidna, so how do you find him in World of WarCraft: Cataclysm? Provisioner Arok is snuggled deep within Vashj'ir zone, in the Shimmering Expanse, resting in the Earthen Ring's respite— Silver Tide Hollow (under w ...more

Whether you like to go swimming or jump in a hot shower with your Apple Watch on, the chance is pretty high that you'll get water inside its speaker. If you're a big runner, even sweat can get inside there. While there is no way to prevent water from getting inside your Apple ...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

Other than sticking your crayon drawings onto your refrigerator door, magnets have a variety of unexpected and sometimes surprisingly practical uses, ranging from keeping your chip bags sealed to creating weird patterns on your nail beds using magnetic nail polish. The strong ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

Anonymity is something that doesn't exist today. Everything you do in the world is tracked, from the purchases you make to surfing the internet—even taking pictures on your iPhone. Everything you have ever said and done on the internet is still there—somewhere. This is called ...more

The new iPhone 12, 12 mini, 12 Pro, and 12 Pro Max may seem like minor updates to the iPhone 11 lineup, but there are quite a few features that make them worth the upgrade. Apple has done a good job of highlighting all of those features, but some didn't get all of the love the ...more

In this article, I'll show you how to build a coil gun. A coil gun is a device that fires magnetic projectiles at high velocities, using electricity. Coil guns require no explosive propellant, therefor can be fired an infinite amount of time, providing that there is ammunition ...more