Shop Minolta 20MP 35X Optical m SLR-Style Camera with 8GB Card and Software 8436790, read customer reviews and more at HSN.com.

What colour can YOU see? Dizzying optical illusion creates a different shade for every viewer – but no-one knows why. Illusion named Benham’s top …

News; Science; Duck or rabbit? The 100-year-old optical illusion that could tell you how creative you are

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Early forms of m lenses were used in optical telescopes to provide continuous variation of the magnification of the image, and this was first reported in the proceedings of the Royal Society in 1834.

Since that time, research has centred around the pulse modulation of lasers (1963), coding techniques, heterodyne detection schemes using local laser oscillators (1965), optical FM (1968), and optical fibre light guide technology.

DVD (an abbreviation of “digital video disc” or “digital versatile disc”) is a digital optical disc storage format invented and developed by Philips and Sony in 1995. The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players.

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Why does this spinning arrow ALWAYS point right? Mathematician’s incredible optical illusion leaves the internet baffled. It is the creation of Professor Kokichi Sugihara at Meiji University in Tokyo