The float-glass process, which creates a high-quality surface, is today widely used to produce the glass. The method was developed in 1950 after Alastair pilkington, a British glass-maker, observed the way that a film of fat formed on the surface of his wife's dishwater. Sensing that molten glass could also be floated on a molten metal such as tin order to produce a smoother finish, Pilkington's company in vested seven years and 16.5 million dollar to perfect the process.
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