Evolution of human colour vision that are found between 450 and 625. Individuals with various forms of colour blindness such as deuteranopia and protanopia are missing human middle wavelength sensitive or long wavelength sensitive opsins. Their minimum wavelength differences are <5 but only at around 500. Protanopes, who are missing long wavelength sensitive cones, are unable to distinguish between colours in the green-yellow-red section of the electromagnetic spectrum. They find yellow, red and orange colours to have much lower brightness when compared to a trichromat. The dimming of these colours can result in confusion in many cases, such as when attempting to identify red traffic
The Needle's Eye (novel) The Needle's Eye (novel) The Needle's Eye is a 1972 novel by British novelist Margaret Drabble. The novel was well received by reviewers, like contemporary novelist Joyce Carol Oates. Though it was her fifth novel, Drabble described it as her first time that she could "actually write a novel" expressing what she wanted to write. Novelist Joyce Carol Oates gave a glowing review for the novel in the "New York Times" describing the novel as well surpassing the quality of her earlier works. Oates writes that "The Needle's Eye" was an "extraordinary work", transporting the reader into the "human and