Charge Car Battery with Arc Welder

Every time Apple releases a new version of their mobile operating system, it comes packed with an assortment of bugs, issues, and other hindrances. When they released iOS 6, there were major Wi-Fi issues, App Store problems, battery drains, Passbook bugs, and lock screen expl ...more

"What is dead may never die." That's easily one of the best lines (and episode title) from HBO's Game of Thrones series. While the saying may ring true for the Ironborn, it's not quite as catchy when it comes to batteries. Lithium-ion batteries power tons of consumer electron ...more

"Ahoy-hoy." If telephone titan Alexander Graham Bell had his way, we'd all be answering phones like Mr. Burns. Thankfully, frienemy Thomas Edison had enough sense to realize we weren't always on the briny. He preferred "hello" as our standard telephone greeting, which he is c ...more

Inductive charging is already a reality on popular smartphones like the Samsung Galaxy S III and Google Nexus 4, and Apple has recently published a patent that would make inductive chargers a reality for the iPhone. There are also several phones that have the capability for wi ...more

A common misconception is that all car batteries die. This, in fact, isn't true—the majority of "dead" car batteries just don't contain enough juice to power a car, but they can still provide enough watts to keep emergency fans and lighting running, which is great when a power ...more

The new iPhone 5 was just revealed yesterday, and it's 18 percent thinner and just 1/5 the weight of its 4S predecessor. It's also taller with a larger screen, which gives you a fifth row for apps now. As far as speed is concerned, it has a speedy A6 chip and can tap into wire ...more

Aside from being completely adorable, Fijibot is a completely autonomous robot that automatically seeks out light sources to charge his solar-powered battery. He's built from a 1.5 liter Fiji water bottle, packed with an Arduino Uno, 6 volt solar panel, and an Arduino Proto Sh ...more

One of the best things about Christopher Nolan's Batman trilogy is how realistic he makes the caped crusader feel. Unlike the Joel Schumacher or even the Tim Burton versions, Nolan's world seems grounded in some level of scientific fact. But just how close is science to actual ...more