Thought for Food

Am I losing my mind or does this image look like it’s very slowly pulsing? Like a gentle wave emerging from the center?

Need to get away from this desk…!

freshphotons:

“Photographer Kirk Crippens created this image of the speck of light that persists after the television is turned off. After a lot of trial and error, Crippens was able to catch the speck in the middle of the frame, at at magnification of about 5x, on an RCA solid-state black-and-white television.

When the TV is on, electrons firing at its phosphor-coated screen cause the screen to emit light, creating the image. Electromagnets guide the beam and direct it to scan repeatedly across the screen. When the set is shut down, the electromagnets deactivate and the remnant beam from the electron gun defaults momentarily to the center of the screen before dying out—but not always in the same spot, as Crippens discovered. The blue and yellow colors here result from electrons exciting the two types of phosphor common in older TVs.” Via.