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Flexible plywood is designed for making curved parts, a practice which dates back to the 1850s in furniture making. [ citation needed ] At 3 ⁄ 8 inch (9.5 mm) thick, mahogany three-ply "wiggle board" or "bendy board" come in 4 by 8 feet (1.2 m × 2.4 m) sheets with a very thin cross-grain central ply and two thicker exterior plies, either ...
The name of the movement derives from the French 'rocaille', or pebble, and refers to stones and shells that decorate the interiors of caves, as similar shell forms became a common feature in Rococo design. It began as a design and decorative arts style, and was characterized by elegant flowing shapes. Architecture followed and then painting ...
This signal is then converted back into sound through an amplifier and one or more loudspeakers. [8] The term "phonograph", meaning "sound writing", originates from the Greek words φωνή (phonē, meaning 'sound' or 'voice') and γραφή (graphē, meaning 'writing'). Similarly, the terms "gramophone" and "graphophone" have roots in the ...