Raisins are a great food that boost testosterone levels for multiple reasons. Firstly, theyâre anti-inflammatory and chock-full of antioxidants, such as resveratrol, which has been linked to increased testosterone and lowered estrogen levels in few studies (study, study).
In 1839, John Herschel made the first glass negative, but his process was difficult to reproduce. Slovene Janez Puhar invented a process for making photographs on glass in 1841; it was recognized on June 17, 1852 in Paris by the AcadÃ©mie Nationale Agricole, ManufacturiÃ¨re et Commerciale.
Herschel also coined the terms negative and positive in the context of photography, and also of the vernacular snapshot.. Stereoscopy. The principle of stereoscopy (or 3D photo) actually preceded that of photography - it was described in as early as the 1500s by Giambattista della Porta [wiki].