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On June 10, 1896, Cralle applied for a patent on his invention. He was awarded patent 576,395 on 2 February 1897. [4] The patented "Ice Cream Mold and Disher," was an ice cream scoop with a built-in scraper to allow for one-handed operation. [5] [6] Alfred's functional design is reflected in modern ice cream scoops. [7]
c.1622: Drebbel presents his invention in Rome. 1624: Galileo improves on a compound microscope he sees in Rome and presents his occhiolino to Prince Federico Cesi, founder of the Accademia dei Lincei (in English, The Linceans). 1625: Francesco Stelluti and Federico Cesi publish Apiarium, the first account of observations using a compound ...
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...
Most ice cream scoops are hemispherical-shaped and contain a mechanical device to force the ice cream out of the scoop. The ice cream scoop was invented by African-American Alfred L. Cralle who was issued U.S. patent #576,395 on February 2, 1897. [58] 1897 Charcoal briquette
It requires an exposure in the camera that lasts at least eight hours and probably several days. 1834 – Hércules Florence, a French-Brazilian painter and the isolate inventor of photography in Brazil, coined the word photographie for his technique, at least four years before John Herschel coined the English word photography. [9]
Actual inventor unknown since it seemed to already be a common item being offered by the spectacle makers in the Netherlands with Jacob Metius also applying for patent and the son of Zacharias Janssen making a claim 47 years later that his father invented it. 1620: Compound microscopes, which combine an objective lens with an eyepiece to view a ...
He is often credited with the invention of the pinhole camera. [3] [4] He also provided the first correct analysis of the camera obscura, [5] offering the first geometrical and quantitative descriptions of the phenomenon, [6] and was the first to utilize a screen in a dark room for image projection from a hole in the surface. [7]
Antonie van Leeuwenhoek (1632–1723). The field of microscopy (optical microscopy) dates back to at least the 17th-century.Earlier microscopes, single lens magnifying glasses with limited magnification, date at least as far back as the wide spread use of lenses in eyeglasses in the 13th century [2] but more advanced compound microscopes first appeared in Europe around 1620 [3] [4] The ...