where did the glass ceiling term come from
Glass ceiling The first person to use the phrase was Marilyn Loden, during a 1978 speech.[15][16] The concept of the glass ceiling was later popularized at the National Press Club in July 1979.[citation needed] This was at a Conference of the Women's Institute for Freedom of the Press led by Katherine Lawrence of Hewlett-Packard. This was part of an ongoing discussion of a clash between written policy of promotion versus action opportunities for women at HP.
Lighthouse The lantern room is the glassed-in housing at the top of a lighthouse tower containing the lamp and lens. Its glass storm panes are supported by metal Astragal bars running vertically or diagonally. At the top of the lantern room is a stormproof ventilator designed to remove the smoke of the lamps and the heat that builds in the glass enclosure. A lightning rod and grounding system connected to the metal cupola roof provides a safe conduit for any lightning strikes.