O que é ser uma pessoa obscura?

O que é ser uma pessoa obscura?

Que denota tristeza; sombrio, tenebroso. [Figurado] Pouco conhecido; desconhecido.

O que é linguagem obscura?

Pouco inteligível, pouco perceptível, que mal se compreende, enigmático, confuso: A sua linguagem obscura.

What was the first use of the camera obscura?

• The term "camera obscura" was first used by the German astronomer Johannes Kepler in 1604. In 1827, Joseph Nicephore Niepce captured an image on a bitumen-coated metal plate using a pinhole camera to produce the first photographic image he dubbed heliographs. A.

Who used the camera obscura?

• The term "camera obscura" was first used by the German astronomer Johannes Kepler in the early 17th century. He used it for astronomical applications and had a portable tent camera for surveying in Upper Austria.

How does the camera obscura work?

• The camera obscura, literally "dark room", is a device that makes use of an optical phenomenon in which light rays reverse themselves when they pass through a small aperture. At its most basic, light rays pass through a tiny hole and recreate themselves upside down on a screen that is placed parallel to the hole.