pixels

No, that glowing pickle isn't a promotion for rave night at Katz's, it's a demonstration for how your TV works. In this ingenious twist on the classic potato clock, MIT professor Vladimir Bulovic transforms a humble full sour into a giant OLED pixel for our learning pleasure.

Lance Corporal Ted "JOEY" Boudreaux Jr. was bored. It was the summer of 2003 in Iraq, the pause between the heavy lifting of the U.S. invasion and the turmoil of the insurgency, and you can joyride around the desert in a dusty Humvee only so often. Loitering at the back gate of his base, mingling with locals, Boudreaux says he scribbled "Welcome Marines" on a piece of cardboard and gave it to some kids, who then posed with him, smiling, for a snapshot. He e-mailed the picture to his mom, a cousin and a few friends, and he didn´t think about it again. Boredom moved on.

Even with five, six, seven million pixels of resolution, palm-of-your-hand digital cameras produce disappointingly blurry results in low light. It´s nigh impossible to hold the camera steady during those long exposures. Boosting the sensitivity of the image sensor (ISO) so it can gather more light hasn´t worked, because that entails running more electricity through the sensor, which registers the current as light. This creates a pockmarked trail of incorrectly “exposed” pixels and gives you a dark and “noisy,” or grainy, image.