This tutorial for light painting is a great introduction for how long exposure photographs capture motion, and change the amount of light in an image. At-Bristol Science Centre‘s Heather Nichol explains how to modify your DSLR (or any manual control) camera settings as Lillie Haden-Grant ice skates with LED lights on her hands and feet. What kind of lines will the camera capture?

Related exploration: Light painting history that goes back to 1889, plus Picasso’s Light Drawings (1949).

Watch this next: Photography, from camera obscura to camera phone.

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