history of photography

Thursday, December 20, 2018 : December 20, 2018

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In 1614, Angelo Sala used silver nitrate which was burned by sunlight with paper wrapped. This was stated in his article entitled Sepem Planetarum terrestrium Spagirica recensio, "If silver nitrate powder is exposed to sunlight, it will turn black like ink."

[1] This discovery with the effects of sunlight was considered less useful by other scientists.

In 1717, Johann Heinrich Schulze, a German professor who used a bottle containing silver nitrate and lime accidentally was near the window.

This mixture makes it dark with a portion white and makes a line on the bottle. A chemist, Carl Wilhelm Scheele found ammonia soluble in silver nitrate but not dark particles.

This discovery made to stabilize an image of silver nitrate, this is considered as the discovery of photography experiments. Not long after 1800 Thomas Wedgwood captured an image with an obskura camera.

Unfortunately Wedgwood already died at the age of 34 in 1805. "Boulevard du Temple", the daguerreotype was made by Louis Daguerre in 1838 as the beginning of the first photo with the person in the photo.

In 1816 Nicphore Niépce used paper wrapped in silver nitrate to make a photo with a small camera.

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