opeidoscope (plural opeidoscopes)
An instrument, consisting of a tube with one end open and the other end covered with a thin flexible membrane with a mirror attached to its centre, used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds that enter the tube.
Source: Wiktionary
O*pei"do*scope, n. Etym: [Gr. -scope.] (Physics)
Definition: An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it. A. E. Dolbear.
Source: Webster’s Unabridged Dictionary 1913 Edition
29 December 2024
(adjective) being long-lasting and recurrent or characterized by long suffering; “chronic indigestion”; “a chronic shortage of funds”; “a chronic invalid”
According to Guinness World Records, the largest coffee press is 230 cm (7 ft 6 in) in height and 72 cm (2 ft 4 in) in diameter and was created by Salzillo Tea and Coffee (Spain) in Murcia, Spain, in February 2007. The cafetière consists of a stainless steel container, a filtering piston, and a superior lid.
