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3 results for “Umbrella”
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Britannica 11th
Encyclopaedia Britannica · 11th edition
Umbrella
Britannica 11thUMBRELLA, a portable folding protector from rain (Fr. parapluie), the name parasol being given to the smaller and more fanciful article carried by ladies as a sunshade, and the en-lout-cas being available for both purposes. Primarily the umbrella (ombrella, It ...
Umbra
Britannica 11thUMBRA (Lat. for shade or shadow), in astronomy, the completely dark portion of the shadow of a heavenly body, filling the space within which the sun is entirely hidden. The body being supposed spherical, the umbra is a cone circumscribing both the sun and the
Telegraph
Britannica 11th... y cases multiple antennae are used consisting of many wires arranged in cone or umbrella-rib fashion, or a metal roof or metallic chimney may be employed (see fig. 39). In any case the antenna serves as one surface of a condenser, the other surface of which is ...