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Frames and glasses must be designed so that small pieces of the glasses such as screws and glass particles cannot become dislodged, then float and be inhaled. 90% of astronauts wear glasses in space, even if they do not require corrective glasses on Earth, because zero-gravity and pressure changes temporarily affect their vision. [59]
A glass building facade. Glass is an amorphous (non-crystalline) solid.Because it is often transparent and chemically inert, glass has found widespread practical, technological, and decorative use in window panes, tableware, and optics.
For example, ADF-type smart sunglasses can change from horizontal polarization filtering to vertical polarization filtering at the touch of a button. The lenses of smart sunglasses can be manufactured out of multiple adaptive cells, therefore different parts of the lens can exhibit different optical properties.
Droolers Anti-Defamation League — Wearing nerdy glasses and a face full of slobber, Chevy Chase promotes this organization that works "to correct the negative image of droolers propagated by the media." Chase's sustained chuckle in this PSA from SNL ' s third episode is believed to the show's first break of character.
The economist Mario Monti was appointed new Prime Minister, at the head of a technocratic cabinet. [300] 2012 Finnish presidential election Finland: 22 January 2012 Sauli Niinistö was elected the President of Finland for a term from 1 March 2012 until 2018. [301] [302] Diamond Jubilee of Elizabeth II United Kingdom: 6 February 2012
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