I just discovered a fellow named Caleb Charland who creates photographic art by playing with science. Everyone remember the potato clock? Well, in the picture above, the lamp you see is being powered by the apples in the orchard. Apparently the lamp holds 30 small LED lights and each LED is powered by ten apples in series. It took him twelve hours to set up and a four hour exposure to get the shot just right.
He's got several other shots that look equally interesting... Many of them involve long exposures, but none of them rely on photoshop trickery.
Here are a few of my favorites.
Light Sphere with Right Arm and Cigarette Lighter
Silhouette with Matches
|Candle in a Vortex|
|Bouncing Pen Light|
See more photos here