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Much of the scientific work on optography was performed by the German physiologist Wilhelm Kühne.Inspired by Franz Christian Boll's discovery of rhodopsin (or "visual purple")—a photosensitive pigment present in the rods of the retina—Kühne discovered that, under ideal circumstances, the rhodopsin could be "fixed" like a photographic negative.
Barnard was born in Nashville, Tennessee, on December 16, 1857, to Reuben Barnard and Elizabeth Jane Barnard (née Haywood), and had one brother. His father died three months before his birth, [1] so he grew up in an impoverished family and did not receive much in the way of formal education.
Furnace chamber of a retort or crematory. After graduation and moving to San Francisco in 2006, at age 22, she sought hands-on exposure to modern death practices in funeral homes, and after seeking employment for six months, was hired in the crematory of Pacific Interment (called Westwind Cremation & Burial in her book) despite her lack of any experience in the funeral industry.
The Small Dark Spot, sometimes also called Dark Spot 2 or The Wizard's Eye, was an extraterrestrial vortex on the planet Neptune. [1] [2] It was the second largest southern cyclonic storm on the planet in 1989, when Voyager 2 flew by the planet. When the Hubble Space Telescope observed Neptune in 1994, the storm had disappeared. [3]
Six months before Harrington's death, E. Myles Standish had used data from Voyager 2's 1989 flyby of Neptune, which had revised the planet's total mass downward by 0.5%—an amount comparable to the mass of Mars [3] —to recalculate its gravitational effect on Uranus. [4]
Wikipedia:Please do not bite the newcomers, a guideline, advises Wikipedia users to consider the obvious fact that new users of Wikipedia will do things wrong from time to time. For those who either have or might have an article about themselves, there is a temptation—especially if apparently wrong or strongly negative information is included ...
Philip Cary Plait (born September 30, 1964), [1] also known as The Bad Astronomer, is an American astronomer, skeptic, and popular science blogger. Plait has worked as part of the Hubble Space Telescope team, images and spectra of astronomical objects, as well as engaging in public outreach advocacy for NASA missions.
The Archives of the Planet (French: Les archives de la planète) was a project undertaken from 1908 to 1931 to photograph human cultures around the world. It was sponsored by French banker Albert Kahn and resulted in 183,000 meters of film and 72,000 color photographs from 50 countries.