Portada del libro de Ceiling Projector
Título del libro:

Ceiling Projector

Alphascript Publishing (2010-05-06 )

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ISBN-13:

978-613-0-87965-5

ISBN-10:
6130879652
EAN:
9786130879655
Idioma del libro:
Inglés
Notas y citas / Texto breve:
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The ceiling projector or cloud searchlight is used to measure the height of the base of clouds above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft away and wherever possible set at the same level. The projector is normally set at 90°, although 71° 31' may be used, in relation to the terrain. The projector consists of a 430 W incandescent bulb set in a weatherproof housing. Inside the housing are two mirrors; the first, above the bulb, reflects the light downwards to the second mirror, that then reflects the light upwards to the cloud. Both mirrors are focused to produce a high intensity beam of light that renders a visible spot on the base of the cloud.
Editorial:
Alphascript Publishing
Sitio web:
https://www.alphascript-publishing.com/
Editado por:
Frederic P. Miller, Agnes F. Vandome, John McBrewster
Número de páginas:
72
Publicado en:
2010-05-06
Stock:
Disponible
Categoría:
La física, la astronomía
Precio:
29.00 €
Palabras clave:
Searchlight, Alidade, Incandescent, Fog, Blizzard

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