Search results
Results From The WOW.Com Content Network
A diver viewed from below who appears inside of Snell's window. Snell's window (also called Snell's circle [1] or optical man-hole [2]) is a phenomenon by which an underwater viewer sees everything above the surface through a cone of light of width of about 96 degrees. [3] This phenomenon is caused by refraction of light entering water, and is ...
English: Snell's window as seen through an underwater tunnel at the St. Louis Zoo. Caustics in the water are visible near the sun. The black line through the frame is a gasket between segments of the tunnel.
Through "Snell's window" (top), we see some of the scene above the water, including the handles of the ladder (right of center). The color-fringing of the light (top) and of the edge of Snell's window is due to variation of the refractive index, hence the critical angle, with wavelength. Reason I can't comment on its merits as a sports photo.
Willebrord Snellius [1] [2] (born Willebrord Snel van Royen) [3] (13 June 1580 [4] – 30 October 1626) was a Dutch astronomer and mathematician, commonly known as Snell. His name is usually associated with the law of refraction of light known as Snell's law. [5] The lunar crater Snellius is named after Willebrord Snellius.
In a July 2020 interview for The Natural Aristocrat, Emery spoke about enjoying the unpredictable nature of her Ozark character Darlene Snell. "Every time I get a script, I’m surprised, which is great. It’s not like, ‘Oh, there she goes again!’ I think it’s unpredictable what a great mother she is in her own way." [7]
Martin Edge (op cit, p223) observes "I was once under the impression that the deeper you went the more [of snell's window] could be included [in the photograph]. This is incorrect! To photograph the full circle you need a fisheye lens equivalent to a 12mm lens on a 35mm format."
Gordon Snell is a British author of children's literature [3] and scriptwriter. [4] He was married to Irish author Maeve Binchy from 1977 until her death in 2012. [ 5 ] He lives in the home that he shared with his late wife in Dalkey , outside of Dublin , Ireland .
Snell Acoustics, a manufacturer of audio equipment; Snell Limited, a manufacturer of digital media products; Snell Memorial Foundation, an organization which provides standard of safety for helmets; Snell knot, a hitch knot used to attach an eyed fishing hook to fishing line; Snell station, a light rail station in San Jose, California