interactivearchitecture.org writes, "Bitfall is an installation where water is being used to project images taken from the internet. A computer observes various news websites and chooses thereafter the images to be displayed. 128 nozzles are controlled by synchronised magnetic valves, and the water drops falling to the ground shape the images. The visual information is only tangible for a second before the drops merge to become water again."
While not strictly photography, I’d say this counts as cool as experimental imaging.
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