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.
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 catastrophic effect on computers, cell phones, and most any other electronics? I'll be answering all these questions in part three of Making Electromagnetic Weapons.
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 and available electricity.
This Animal Welfare Foundation two-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a ferret.
This Animal Welfare Foundation three-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a rabbit.
This Animal Welfare Foundation two-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a guinea pig.
This Animal Welfare Foundation two-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a rat.
This Animal Welfare Foundation two-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a hamster.
There are many reasons to take cold showers. It can improve circulation, stabilize blood pressure, improve skin and/or hair, and improve immunity. Cold showers are not easy to just jump into. It does take some time to adapt to the shock of getting into cold water and then staying with it.
In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple plasma is amazing!). And if all else fails, they make a cool nightlight. If you've ever been around a Tesla coil, cathode ray tube TV or sometimes even on a trampoline, you've probably noticed that smell; the smell of "sta...
Watch this video from This Old House to learn how to change your water heater anode rod. Steps:
Are your exterior lamps looking totally out of place? Bring them back into the fold with a simple spray paint face lift. As every fashion-conscious gal knows, accessories make all the difference. The same is true for your house: the decorative touches, accent pieces, and color schemes can make the difference between a house that looks all together or altogether tacky. Exterior lights are a perfect example: do your lamps match your home like the perfect pair of earrings match your outfit? If n...
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:
Snowflakes aren't much to look at during a storm, but when you look real close, you can see just how marvelous they really are. But winter is over and most of us can no longer enjoy the intricate nature of ice crystallization, unless you're sticking your head in your freezer. Or unless you build your own snowflake cultivation machine, which shoots 2,000 volts of electricity through a cold, moist chamber.
We've all heard of the power that red wine holds. It can help lower risks of heart disease, boost your brain power, and can even recharge your car battery. But last year, a group of Japanese physicists made headlines when they announced that they could induce superconductivity by soaking metals in red wine. But why red wine?
Tesla coils are electrically satisfying in so many ways. But what happens when a guitar-playing city coil has a run-in with a backwoods, banjo-playing, inbred coil? A musical duel to the death! Watch these two Tesla coils battle it out as they play Dueling Banjos. Shocking. Just shocking. Okay, so it's no secret that Tesla coils can create a wonderful light show of electricity, but by modulating the frequency, they quickly turn into powerful singing Tesla coils—the key to any electromaniac's ...
His name is Don Pettit, but I like to call him Space MacGyver. He's well known for his paper clip fixes and ingenious coffee invention in zero gravity, and we've all seen the NASA astronaut in his Saturday Morning Science videos during his first stay on the International Space Station. And now he's back on the ISS with a brand new physics-related show... Science Off the Sphere.
So, when Christopher brought up Nikola Tesla in his very first post on Fear of Lightning, it got me interested in learning more about the man behind alternating current. There is plenty of info out there on the Internet, widely available for free, but sometimes it's just nice to have a book in your hands... or on your computer or mobile device.
I love this project. It involves fire, projectiles, electricity, and is easy to put together from commonly available parts. This mini cannon fires airsoft pellets, is fueled by alcohol, and is made almost entirely from parts found in a standard BBQ lighter. The total cost is under $5. About half of the BBQ lighters out there have a divide in the gas reservoir which makes them not work for this project. In case you have trouble finding a suitable lighter, the exact one I use in this video is a...
Apple's iPhone is considered one of the best smartphones in the world. Many cell phone makers have tried to take down the juggernaut, with some Android-based devices coming close, but in order to become an actual iPhone killer, something revolutionary needs to happen in the mobile world. And Human Media Lab (HML) may be the ones to make it happen.
Turkey's been consumed, you've awakened from the food coma, and you've escaped the madness of Black Friday. Isn't it about time you tackle a new project? We've got some great new projects for you to help illuminate the darkness of winter.
China's latest futuristic project is a massive "3D Express Coach", a clever project proposed by Shenzhen Hashi Future Parking Equipment Co. as a solution to traffic in the extremely overpopulated country.
Distorted and curled up shingles are often a sign of insufficient or complete lack of attic ventilation. Attic ventilation is crucial in keeping your home’s roof sound and your interior comfortable. Installing soffit vents will increase the airflow under your roof. This will extend the life of your roof and help alleviate ice dams and attic condensation in the winter. In addition, this will reduce your heat build-up in the summer and thus save you money on your air-conditioning bill.
In this experiment, we're going to get Mn2O3 (manganese(III) oxide) from MnO2 (manganese(IV) dioxide). Mn2O3 forms brightly red or a dark red colored crystal. It is used in Li-ion batteries, since (in a form of a crystal) it conducts electricity (much like MnO2).
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...
Hello! This post is about the electrical socket. Imagine that somebody pulled the cable out of the possible protection outlet too fast? The result can be seen on the following photo. What to do next? Step 1: Preparation
If a solar-powered air conditioner that requires no electricity or moving parts sounds to good to be true, well, then you're not as ambitious as this clever high school student. Instructables user Fozzy13 put together an awesome DIY tutorial on how he built his own air conditioning unit in his car that works using the principles of evaporation, convection, and capillary action. This air conditioner works by using sunlight to heat air at the bottom of the unit. The hot air rises, allowing the ...
It appears there are endless things you can do with Coke. The Nokia Coke-powered phone is not in production, but certainly an interesting idea. Designed by Daizi Zheng, the Coke phone is an eco-friendly solution to charging your cell.
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?
Is your new puppy keeping you up at night? Stop yelling at that poor whimpering pup. Remove the duct tape from his snout. Loathe as I am to admit it, sometimes love is the answer. Brilliant and simple. We present to you the real dog whisperer. Is your new puppy keeping you up at night? Stop yelling at that poor whimpering pup. Remove the duct tape from his snout. Loathe as I am to admit it, sometimes love is the answer. Brilliant and simple. We present to you the real dog whisperer.
Think atomic theory is only for nerds? Think again. Make magical electrons dance right before your very eyes. This anti-gravity orb will move at your command.
If you would like to restrict what appears on your Facebook page, here's a novel way to retain ultimate control, coined the "super-logoff" method:
How many gallons of gas does it take to get from Kansas City to New York? Depends on what you're driving. In this custom-modded Indy race car designed by students at the DeLaSalle Education Center? About four.
This Animal Welfare Foundation two-part video tutorial is from expert veterinary staff demonstrating the correct procedures for handling small mammals for clinical examination and medication. Its aim is to show that the primary consideration should be for the the welfare of the animal. This video guide will show you practical animal handling for a mouse.
The cable pullover is a great way to work the upper back muscles. This exercise also works just about all the muscles of the upper body to some degree. The largest muscle in the back is scientifically known as the latissimus dorsi. You might see it referred to as the "lats" or "wings." The lats are used any time you pull something. For example, when you open a fridge or a car door, you are primarily using your lat muscles.
The dumbbell pullover is primarily going to work the upper back muscles. This exercise also works just about all the muscles of the upper body to some degree. The largest muscle in the back is scientifically known as the latissimus dorsi. You might see it referred to as the "lats" or "wings." The lats are used any time you pull something. For example, when you open a fridge or a car door, you are primarily using your lat muscles. Instructions for the dumbbell pullover are listed below:
The reverse barbell shrug is an excellent way to work the trapezius muscles. This exercise is sometimes referred to as "behind-the-back shrugs." The reverse shrug minimizes the momentum that can be generated with traditional shrugs to the front of the body.
A long summer road trip brings opportunity for adventure, but also increases the chances for minor disasters including backseats that smell like stale French fries, getting lost in unfamiliar roads, and getting unexpectedly carsick.
If you want to keep your inner snack monster under control, sniff an apple. Studies have shown that sniffing an apple or a banana helps curve your appetite. Craving something deliciously sweet? Take a whiff of something vanilla-scented, like a vanilla-scented candle.
We've already covered how to remove the Home button lag on the Samsung Galaxy S4, now let's take a look at how to speed up a few more key areas on your new device. This GS4 is already blazing fast, but let's squeeze every ounce of speed we can from it by making a few basic tweaks. This is a really simple hack, and all you'll need is to have Developer Options enabled.
