invisible

This is what the world would look like if you could see invisible air currents, temperature gradients, and differences in pressure or composition of the air. Support Veritasium on Patreon: Special thanks to Patreon Supporters: Tony…

Three years ago, photojournalism professor Steve Liss founded "In Our Own Backyard" -- recruiting photographers to travel the country and help make an invisible side of America visible. Jim Axelrod reports.

Tv remote control's inrared light captured by a photo camera, but invisible with the naked eye.