kevin martin

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Make An LED Holiday Light Out Of Pennies

And a lemon, and some other stuff. But mostly pennies.<p>Skip the tangled strings of holiday lights this year and go wireless using a few copper-coated cents. U.S. pennies minted since 1982 conceal a zinc core. If exposed to acid, the zinc dissolves and frees electrons for use in a circuit. The …

Cognitive Computing For All: IBM Releases a Legion of Watsons

Watson is dead. IBM’s Jeopardy-winning computer, whose calculations resided on a custom-built bank of servers roughly the size of a master bedroom, is no more.<p>But Watson has descendants. They’re also called Watson, and they are legion. Some of those Watsons will grow up to be medical experts. Other …

This flame is made of pure water

Scientists have invented a new low-cost method to create a <i>safe</i> welding flame using <i>water</i> as its only fuel. Called the Safeflame, the device splits …

EssayTyper

Inside Evasi0n, The Most Elaborate Jailbreak To Ever Hack Your iPhone

In Apple’s eternal cat and mouse game to control what you can and can’t run on your iOS device, score another one for the mice.<p>On Monday a team of hackers that calls themselves the evad3rs released evasi0n, the first jailbreak program that works for the iPhone 5, as well as the iPad 4, the iPad …

Mesmerizing Translucent Waves from 19th Century Paintings

The late 19th century Armenian-Russian painter Ivan Konstantinovich Aivazovsky created some truly spectacular paintings of seascapes that capture the beautiful, shimmering essence of the tumultuous waters. The marine artist gained recognition for his impeccable ability to recreate the expressive …