microscope

Ernst Ruska and the Electron Microscope

Ernst Ruska and the Electron Microscope

On March 9, 1931, German physicist Ernst Ruska together with his doctoral advisor Max Knoll presented the very first prototype electron microscope, capable of four-hundred-power magnification; the apparatus was the first demonstration of the principles of electron microscopy. “The light microscope opened the 1st gate to microcosm. The electron microscope opened the 2nd gate to microcosm.” What will we find opening the 3rd gate? (Ernst Ruska, 1985)[1] Youth and Education Ernst Ruska…
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Ernst Abbe – Brilliant Engineer and Courageous Social Reformer

Ernst Abbe – Brilliant Engineer and Courageous Social Reformer

On January 23, 1840, German physicist, optometrist, entrepreneur, and social reformer Ernst Abbe was born. Together with Otto Schott and Carl Zeiss, he laid the foundation of modern optics. As a co-owner of Carl Zeiss AG, a German manufacturer of research microscopes, astronomical telescopes, planetariums and other optical systems, Abbe developed numerous optical instruments. “Whatever entrepreneurial income is received shall be returned to the public, it does not belong to those who…
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Christian Gottfried Ehrenberg – Father of Micropaleontology

Christian Gottfried Ehrenberg – Father of Micropaleontology

On April 19, 1795, German naturalist, zoologist, comparative anatomist, geologist, and microscopist Christian Gottfried Ehrenberg was born. Ehrenberg was one of the most famous and productive scientists of his time. He has been called the founder of micropaleontology (the study of fossil microorganisms). He held that animals, of any size down to the tiniest, have organ systems in common, including muscles, reproductive organs, and stomachs. Christian Gottfried Ehrenberg studied theology at the University of…
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Marcello Malpighi – The Father of Microscopical Anatomy

Marcello Malpighi – The Father of Microscopical Anatomy

On March 10, 1628, Italian biologist and physician Marcello Malpighi was born. Malpighi is referred to as the “Father of microscopical anatomy, histology, physiology and embryology“. In developing experimental methods to study living things, Malpighi founded the science of microscopic anatomy. After Malpighi‘s researches, microscopic anatomy became a prerequisite for advances in the fields of physiology, embryology, and practical medicine. Youth and Education Marcello Malpighi was born at Crevalcore near Bologna, Italy,…
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Xavier Bichat – the Father of Histology

Xavier Bichat – the Father of Histology

On November 14, 1771, French anatomist and pathologist Marie François Xavier Bichat was born. Bichat is known as the father of histology. Although working without the microscope, Bichat distinguished 21 types of elementary tissues from which the organs of human body are composed. Xavier Bichat was the son of Jean-Baptise Bichat, a physician who had trained at Montpellier and was Bichat’s first instructor. Bichat enrolled at the college of Nantua, and later studied…
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Jan Swammerdam – Dutch Naturalist and Microscopist

Jan Swammerdam – Dutch Naturalist and Microscopist

On February 12, 1637, Dutch biologist and microscopist Jan Swammerdam was born. He was one of the first people to use the microscope in dissections, and his techniques remained useful for hundreds of years. Swammerdam’s 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. In 1658, he was the first to observe and describe red…
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Joseph Jackson Lister – Perfecting the Optical Microscope

Joseph Jackson Lister – Perfecting the Optical Microscope

On January 11, 1786, British amateur opticist and physicist Joseph Jackson Lister was born. In 1826, Lister designed possibly the most important optical microscope ever made. It used an achromatic objective lens corrected for chromatic and spherical aberrations, the resulting image was at the time the clearest produced by any microscope. Family Background Joseph Jackson Lister was the son of a London wine merchant and Quaker. He attended school until 1800 and was then apprenticed to his father’s wine business…
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Frits Zernike and the Phase Contrast Microscope

Frits Zernike and the Phase Contrast Microscope

On July 16 , 1888, Dutch physicist and Nobel Laureate Frits Zernike was born. He is best known for his invention of the phase contrast microscope, an instrument that permits the study of internal cell structure without the need to stain and thus kill the cells. “I am impressed by the great limitations of the human mind. How quick are we to learn, that is, to imitate what others have done or thought before. And how…
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