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2. Insulated glazing - Wikipedia

   en.wikipedia.org/wiki/Insulated_glazing

   Insulating glass is an evolution from older technologies known as double-hung windows and storm windows. Traditional double-hung windows used a single pane of glass to separate the interior and exterior spaces. In the summer, a window screen would be installed on the exterior over the double-hung window to keep out animals and insects.

3. Window - Wikipedia

   en.wikipedia.org/wiki/Window

   The panes of glass are separated, creating an insulating air pocket that inhibits heat transfer much better than single pane windows. Double-paned windows have two parallel panes (slabs of glass) with a separation of typically about 1 cm; this space is permanently sealed and filled at the time of manufacture with dry air or other dry ...

4. Glazing (window) - Wikipedia

   en.wikipedia.org/wiki/Glazing_(window)

   The ideal gap size varies by location, but on average it ranges from 15-18 mm thick, giving a final assembly size of 23-26 mm assuming a typical glazing thickness of 4 mm. [9] A double-paned window with air in the gap has an R-value of 2.1, which is much better than the 0.9 that a single pane of glass yields. A triple-paned window, which is not ...

5. Parable of the broken window - Wikipedia

   en.wikipedia.org/wiki/Parable_of_the_broken_window

   The parable of the broken window was introduced by French economist Frédéric Bastiat in his 1850 essay "That Which Is Seen, and That Which Is Not Seen" ("Ce qu'on voit et ce qu'on ne voit pas") to illustrate why destruction, and the money spent to recover from destruction, is not actually a net benefit to society.

6. Tempered glass - Wikipedia

   en.wikipedia.org/wiki/Tempered_glass

   The windscreen or windshield is instead made of laminated glass, which will not shatter into pieces when broken while side windows and the rear windshield have historically been made of tempered glass. Some newer luxury vehicles have laminated side windows to meet occupant retention regulations, anti-theft purposes, or sound-deadening purposes.

7. Float (project management) - Wikipedia

   en.wikipedia.org/wiki/Float_(project_management)

   Consider the process of replacing a broken pane of glass in the window of your home. There are various component activities involved in the project as a whole; obtaining the glass and putty, installing the new glass, choosing the paint, obtaining a tin once it has set, wiping the new glass free of finger smears etc.