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Tag Archives: optics
Arbitrage at the speed of light
arb·it·rage n /ˈɑrbɨtrɑːʒ/ the practice of taking advantage of a price difference between two or more markets. The image most people have of stock markets is of men (and it is always men) in suits using hand signals and shoted verbal … Continue reading
Tagged arbitrage, communication, light, optics, trading
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The best thing about teaching optics…
… is the way the room looks with a dozen rayboxes in use.
Optical fibres and transparent concrete
Total internal reflection allows optical fibres to carry light from one place to another. Optical fibres are used to carry data and for use in internal “keyhole” surgery. LiTraCon in the US has now embedded optical fibres within poured concrete … Continue reading
Tagged optics
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Optical phenomena
Environmental Graffiti has a great post about optical (light) phenomena; I’ve picked out a couple of my favourites: Crepuscular Rays Crepuscular rays are caused by the scattering of beams of light; beams created by an object such as a tree or a cloud. … Continue reading
Tagged light, optics, sky
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5200mm lens
See that tiny blob on the right-hand side of the lens below? That’s a standard SLR camera! Canon’s 5200mm lens weighs 99kg and can be used to take photographs of objects “between 18 and 32 miles away”!
Tagged camera, optics
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