heliograph
he·li·o·graph / ˈhēlēəˌgraf/ • n. 1. a signaling device by which sunlight is reflected in flashes from a movable mirror. ∎ a message sent in such a way; a heliogram.2. a telescopic apparatus for photographing the sun.3. hist. a type of early photographic engraving made using a sensitized silver plate and an asphalt or bitumen varnish.• v. [tr.] 1. dated send (a message) by heliograph.2. hist. take a heliographic photograph of.DERIVATIVES: he·li·o·graph·ic / ˌhēlēəˈgrafik/ adj.he·li·og·ra·phy / ˌhēlēˈägrəfē/ n.
More From encyclopedia.com
Photographer , Education and Training: Varies—see profile
Salary: Median—$26,080 per
year
Employment Outlook: Varies—see profile
Definition and Nature of the Work
P… James Augustus Vanderzee , VanDerZee, James 1886–1983
Photographer
James VanDerZee was a pioneering African American photographer who came to be known as the “eyes of Harlem” i… Photography , Photography is the art and science of creating images using light . For most of its history, this has usually meant using silver compounds that darke… Aerial And Satellite Photography , aerial and satellite photography, technology and science of taking still or moving-picture photographs from a camera mounted on a balloon, airplane,… Calf , calf1 / kaf/ • n. (pl. calves / kavz/ ) 1. a young bovine animal, esp. a domestic cow or bull in its first year. ∎ the young of some other large mamm… Photographic Resolution , A critical aspect of photographic quality is resolution. The term resolution in the context of photography refers to the degree to which adjacent obj…
About this article
heliograph
All Sources -
You Might Also Like
NEARBY TERMS
heliograph