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An ear trumpet is a tubular or funnel-shaped device which collects sound waves and leads them into the ear. They are used as hearing aids, resulting in a strengthening of the sound energy impact to the eardrum and thus improved hearing for a deaf or hard-of-hearing individual. Ear trumpets were made of sheet metal, silver, wood, snail shells or ...
In the course of the Moon books, however, Calculus leads a team of scientists and engineers working on a major rocket project, motivating him to adopt an ear trumpet, and later a hearing aid, and for the duration of the adventure he has near-perfect hearing. This made him a more serious character, even displaying leadership qualities that had ...
Madame de Meuron with ear trumpet. The first hearing aid was created in the 17th century. The movement toward modern hearing aids began with the creation of the telephone, and the first electric hearing aid was created in 1898.
The Hearing Trumpet is a 1974 surrealist novel by Mexican-British author Leonora Carrington. It follows the hard-of-hearing nonagenarian Marian, who is sent off to a peculiar old-age home by her family.
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Flip4Mac 3.3 was released in May 2014 with several minor 3.3.X updates with 3.3.7 being the latest update. Several updates include re-supporting Mac OS X Snow Leopard [3] (after the support being removed in 3.0), and natively supporting OS X Yosemite (10.10) [3] and OS X El Capitan (10.11).
title page of Phonurgia Nova. Phonurgia Nova ("New Science of Sound Production") [1] is a 1673 work by the Jesuit scholar Athanasius Kircher.It is notable for being the first book ever dedicated entirely to the science of acoustics, [2]: 21 and for containing the earliest description of an aeolian harp. [3]
It is a hollow horn, often made of wood or metal, about 200 millimetres (7.9 in) long. It functions similarly to an ear trumpet by amplifying sound. The user holds the wide end of the horn against the pregnant woman's abdomen, and listens through the other end. [1]