Invisibility seems like an incredible superpower until you think about it for more than a minute. See, vision is a two-way street. Light likes to bounce around between objects. Without that interaction, vision doesn’t work.
In an ordinary scenario, light races across the cosmos, coming primarily from our parent star. As it nears, it interacts with objects around us. Photons collide with the atmosphere, with plants and animals, with earth and sea, and bounce away. Those photons, having been altered either by absorption or reflection, then reach our eyes where they are taken in. Our minds paint a picture of the world around us, based entirely on the interaction of modified light entering our eyes.
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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