5. Human eyes are actually extremely sensitive to light - they can detect a single photon (particle of light) in a dark room, according to new research published in Nature Communications. 6. The 'red ...

Both cameras and the human eye contain material that is sensitive to light. Follow me please class ... white and shades of grey… and the cones see colours: red, green and blue, and all the ...

Whereas human eyes contain three types of colour-detecting cells, called cones, dogs have just two. Their cone cells are specialised for picking up yellow and blue-to-ultraviolet light. Each cone type ...