Often, when it comes to DIY projects, we create our own circles by starting from a center point. Whether a compass, string guide, or specialized cutting jig, a circle emerges from our pencils or saws precisely because we've created an established and consistent distance from a single origin.
But, what happens when the shape already exists, and you need to know how to find the center of a circle? You can do it in less than a minute without any specialized math, memorizing a formula, or even knowing what pi is.
French designer and artist Oscar Lhermite secured a compact digital camera to a cordless drill and filmed the results of the lens spinning. Since the camera is capturing about fifteen frames per second and the spinning at 1,200 f.p.s., the resulting blurred video becomes what the artist calls, "seeing the world in a circular gradient."
When I first saw the setup, I imagined the resulting images to be some kind of whirly, wacky video, but it's exactly the opposite. The difference in speed produces an evolving, ethereal kaleidoscope-like pulsing orb that changes as the light and colors are altered.
Be sure to watch through until Lhermite takes the camera outside and captures the streetlights: