Invention by Johann Heinrich Schulze

Invention by Johann Heinrich Schulze

In 1725, Johann Heinrich Schulze proved that if the sun’s rays fall on silver salt, it will darken. Previously, it was believed that salt changes its light color to dark when it is exposed to heat. When the physicist tried to mix nitric acid and chalk (there was a small amount of silver in nitric acid), at that moment Heinrich Schulze noticed that when the sun’s rays fell on this mixture, it changed color from light to dark. And if the mixture is not exposed to the sun, then it will not change its color. After that, the scientist began to conduct experiments: he cut out different figures from plain paper and applied them to a glass bottle. This solution was applied to the bottle, and thanks to this, the imprints of the figures remained on the glass. Schulze decided to make these results public and published them in 1727. But he did not want to stop there and continued his experiments. The fact is that when the scientist blurted out the solution, the image immediately disappeared. But still, it was this invention that helped to get perfect 360 PHOTOGRAPHY AND VIDEO PRODUCTION NYC in the future.

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