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1625: Giovanni Faber of Bamberg (1574–1629) of the Linceans, after seeing Galileo's occhiolino, coins the word microscope by analogy with telescope. 1655: In an investigation by Willem Boreel, Dutch spectacle-maker Johannes Zachariassen claims his father, Zacharias Janssen, invented the compound microscope in 1590. Zachariassen's claimed ...
Zacharias Janssen; also Zacharias Jansen or Sacharias Jansen; 1585 – pre-1632 [1]) was a Dutch spectacle-maker who lived most of his life in Middelburg.He is associated with the invention of the first optical telescope and/or the first truly compound microscope, but these claims (made 20 years after his death) may be fabrications put forward by his son.
Spencer’s first microscopes were available for purchase in 1838. [2] Previous to Spencer’s invention, European manufacturers held a monopoly on research-quality microscopic equipment. [ 3 ] At least one of Spencer’s microscopes survives and is currently held by the Smithsonian Institution.
The earliest pipes were made of clay, and are found at the Temple of Bel at Nippur in Babylonia. [127] [b] 4000 BC: Oldest evidence of locks, the earliest example discovered in the ruins of Nineveh, the capital of ancient Assyria. [130] 4000 BC – 3400 BC: Oldest evidence of wheels, found in the countries of Ukraine, Poland, and Germany. [131 ...
1620: Appearance of the first compound microscopes in Europe. 1628: Willebrord Snellius: the law of refraction also known as Snell's law. 1628: William Harvey: blood circulation. 1638: Galileo Galilei: laws of falling bodies. 1643: Evangelista Torricelli invents the mercury barometer. 1662: Robert Boyle: Boyle's law of ideal gases.
Digital Compound Monocular Microscope. If you have more to spend, this digital compound microscope is excellent. It features a 0.3-megapixel camera to capture and display images on a computer ...
In 1948, Báez co-invented, with his doctoral program advisor, Paul Kirkpatrick, the X-ray reflection microscope for examination of living cells. [9] This microscope is still used in medicine . Baez received his Ph.D. in physics from Stanford in 1950, and wrote his thesis titled "Principles of X-Ray Optics and the Development of a Single State ...
1709 — Daniel Gabriel Fahrenheit constructed alcohol thermometers which were reproducible (i.e. two would give the same temperature) 1714 — Daniel Gabriel Fahrenheit invents the mercury-in-glass thermometer giving much greater precision (4 x that of Rømer). Using Rømer's zero point and an upper point of blood temperature, he adjusted the ...