Heliograph

[hi:liәgræf]

解釋/意思:

(noun.) an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on.

(verb.) signal by means of a mirror and the using the sun's rays.

克莉丝汀編輯--From WordNet

解釋/意思:

(n.) A picture taken by heliography; a photograph.

(n.) An instrument for taking photographs of the sun.

(n.) An apparatus for telegraphing by means of the sun's rays. See Heliotrope, 3.

編輯:拉维恩

解釋/意思:

n. an apparatus for signalling by means of the sun's rays: an engraving obtained by a process in which a specially prepared plate is acted on chemically by exposure to light: an apparatus for taking photographs of the sun.—v.t. to signal to by means of the sun's rays.—n. Heliog′rapher.—adjs. Heliograph′ic -al.—adv. Heliograph′ically.—ns. Heliog′raphy a method of communicating swiftly between distant points by means of the sun's rays reflected from mirrors: photography; Heliogrā′vure (or hā-li-ō-gra-vé»?prime;) photo-engraving or a print obtained by this process.

艾利森手打