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The single-lens microscopes of Van Leeuwenhoek were relatively small devices, the largest being about 5 cm long. [41] [42] They are used by placing the lens very close in front of the eye. The other side of the microscope had a pin, where the sample was attached in order to stay close to the lens.
Antoni van Leeuwenhoek (1632–1723), Dutch biologist, developer of the microscope; François Leguat (c. 1637–1735), French naturalist who described species of birds and tortoises endemic to Rodrigues; Albert L. Lehninger (1917–1986), American biochemist who discovered that oxidative phosphorylation in eukaryotes occurs in mitochondria
His book, which describes observations with microscopes and telescopes, as well as original work in biology, contains the earliest-recorded observation of a microorganism, the microfungus Mucor. [13] [14] Hooke coined the term "cell", suggesting a resemblance between plant structures and honeycomb cells. [137]
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 ...
Van Leeuwenhoek was the first to observe microscopic organisms, using simple single-lensed microscopes of his own design. [1] 1729–1799 Lazzaro Spallanzani: Italian Proved that bacteria did not arise due to spontaneous generation by developing a sealed, sterile broth medium. [2] [3] 1749–1823 Edward Jenner: English
Jan or Johannes Swammerdam (February 12, 1637 – February 17, 1680) was a Dutch biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect—egg, larva, pupa, and adult—are different forms of the same animal.
Robert Brown was born in Montrose, Scotland on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the Scottish Episcopal Church with Jacobite convictions so strong that in 1788 he defied his church's decision to give allegiance to George III.
One of Virchow's major contributions to German medical education was to encourage the use of microscopes by medical students, and he was known for constantly urging his students to "think microscopically". He was the first to establish a link between infectious diseases between humans and animals, for which he coined the term "zoonoses". [63]