Human eye The upper end of the range is given in terms of normal visual performance as 10 cd/m (100,000,000 or one hundred million candelas per square meter). The eye includes a lens similar to lenses found in optical instruments such as cameras and the same physics principles can be applied. The pupil of the human eye is its aperture; the iris is the diaphragm that serves as the aperture stop. Refraction in the cornea causes the effective aperture (the entrance pupil) to differ slightly from the physical pupil diameter. The entrance pupil is typically about 4 mm in diameter, although it
Same Name Same Name Same Name is an American reality television series in which an average person swaps lives with a celebrity of the same first name and surname. It premiered on July 24, 2011 on CBS. After four episodes, CBS pulled the low-rated series from its Sunday night line-up. On the series, two people with the same name switch lives. One person is a well-known celebrity, while the other person is an ordinary individual who simply shares the first and last name of the celebrity. By the end of the episode, they resume their original lives, and comment how they enjoyed