electromagnets

There's a vehicle I often see in my neighborhood with "TAPS" written on it. That stands for "The Albuquerque Paranormal Society." TAPS is known around the area for ghost hunts and tracking paranormal activity, like a homegrown, less governmental version of "The X-Files."

Whether you believe in ghosts or not, it takes a lot of equipment to look for them. Rather than invest in a ton of gear like an electric charge detector, full-spectrum camcorder, night vision goggles, and an EVP mic, you can get started with ghost hunting for a $20 Mr. Ghost pledge on Kickstarter.… Read more

High electromagnetic field levels of household appliances (such as washing machines and hair dryers) and wireless devices (such as laptops and routers) may be at least partially to blame for the rise in childhood obesity in recent years, according to a 13-year study by Kaiser Permanente that followed hundreds of pregnant women and 733 of their children.

After controlling for several factors, including child gender, pre-pregnancy BMI, maternal age at delivery, race, education, breastfeeding, and smoking, researchers write in Nature's Scientific Reports that children exposed to high in-utero levels are nearly twice as likely to be overweight or obese … Read more

Imagine if you were a food critic and suddenly developed a wheat/dairy/corn/carb/fat allergy.

Or what if you were a car mechanic and the smell of gas brought you out in itchy purple hives and then made you have convulsions?

This is the fate of computer technician Phil Inkly. Or, rather, former computer technician.

Inkly, you see, claims to be allergic to pretty much everything to do with, well, technology.

You name it and it affects him. If it's some kind of gadget, if it's even a battery, it might give him nosebleeds, burning headaches, … Read more

The reality of cell phone radiation Buried deep in the pages of your cell phone manual is an often-ignored section on Specific Absorption Rate (SAR), which is the measure of the amount of radio frequency (RF) energy (radiation) absorbed by the body when using your handset. Every phone is measured and rated, and in the U.S. and Canada, the maximum allowable SAR for any handset is 1.6 watts per kilogram. For our database of current cell phone SAR ratings, be sure to check out our ongoing chart on Cell phone radiation levels.

What we don't know, though, … Read more

If you want to know how the U.S. Navy's futuristic electromagnetic railgun works, you could hop on over to the information page on the Office of Naval Research's Web site. Or you could watch a monotone Taiwanese animation.

If you're not familiar with the railgun, it's a favorite Navy project that is intended to be able to launch a 5-inch projectile more than 100 miles without the use of traditional explosives. Using a complex system that forces the projectile out of a ship-bound gun at more than 4,500 miles, the Navy hopes to be … Read more

The U.S. Navy says it has tested one of two prototypes of its futuristic electromagnetic railgun, a weapon that could fire a 5-inch projectile up to 100 miles, yet which requires no explosives to fire.

The Office of Naval Research is evaluating competing railguns--one from BAE Systems, and one from General Atomics. Yesterday, ONR announced it has completed a successful test of BAE's model, and the Navy is expected to test-fire General Atomics' offering sometime in April.

"The firing at Naval Surface Warfare Center Dahlgren Division...kicks off a two-month-ling test series by [ONR] to evaluate the … Read more

Fans (present company included) flipped out when Mattel announced that it would release a 1:1 replica of the hoverboard from "Back to the Future II" and "Back to the Future III." However, the replica doesn't actually float, and it's not even clear how it glides over surfaces, which is perhaps why one enterprising individual took matters into his own hands.

Inspired by an art exhibition by Nils Guadagnin, YouTube user dondula7 created a floating hoverboard using an electromagnetic kit. Dondula7 notes on his YouTube page that his replica is still a work in progress, and he's hoping to build a better display to hide the magnets. … Read more

What kind of car would you design if you didn't have to pay attention to cost, practicality, or even the laws of physics?

To visualize the potential of futuristic technologies, Portuguese industrial designer Tiago Miguel Inacio penned a halo vehicle for the 22nd century--the Mithos Electromagnetic Vehicle concept.

Inspired by Tim Burton's Batmobile, the Mithos is equipped with a 1.5 megawatt electric motor that gives the vehicle a zero to 60 mph acceleration of 2.1 seconds. It can reach its top speed of 250 mph in 12 seconds.

The body is coated in crash resistant body … Read more

Imagine a Naval gun so powerful it can shoot a 5-inch projectile up to 220 miles, yet requires no explosives to fire.

That's the Navy's futuristic electromagnetic railgun, a project that could be deployed on the service's ships by 2025, and which is now a little bit closer to reality with the signing of a deal with Raytheon for the development of what's known as the pulse-forming network.

Rather than using explosives to fire projectiles as do conventional naval weapons, the railgun depends on an electromagnetic system that uses the ship's onboard electrical power grid … Read more