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The fine particles are mostly made from gases. There are four major origins for that gases which are responsible for these particles: rock (vaporized during combustion or casting), carbon from combustion, organic carbon, sulfates and nitrates. Take sulphur dioxide. It is created during engine combustion, but when it climbs into the atmosphere and mixes with rain it will become sulphuric acid. We all probably know very well what that will do- since it is highly corrosive and dangerous in concentration. Amazingly, there isn't a lots of scientific research about how glasses can transform the way in which people see you -- instead of how they see what's facing them. But there's a high correlation with the Hollywood notion the fastest way to turn actors into giving the impression of scientists is always to make them wear a pair of not too flattering spectacles. The technology of photography is part chemical, part optical, and dates from 1839. Soon after its simultaneous invention by William Henry Fox Talbot in England and Louis Jacques Mand? Daguerre in France, photography was applied to document foreign tourist destinations including India, the Holy Land, along with the American West. It was also used by portraits with photographs taken of kings, statesman, and theater or literary personalities.