Kids Need Science is devoted to demystifying and explaining science, technology, engineering and math words, names, and concepts. Check back often for a science, technology, engineering or math word defined and explained every day.
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D16. Sur la route du Grand Canyon, petit détour par Meteor Crater (un immense cratère spectaculaire causé par la collision d’une météorite), puis...
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New cluster of crater impacts on Mars discovered by Mars Reconnaissance Orbiter
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Mickey Mouse Spotted on Mercury ! NASA image acquired: June 03, 2012
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Streptococcus is a genus of bacteria identified and named by Viennese surgeon Albert Theodor Billroth (1829-94) in 1877. A combination of the Ancient Greek streptosmeaning twisted and Modern Latinization of coccusmeaning spherical bacterium from Ancient Greek kokkos meaning berry. Dr. Billroth thought the streptococcus bacterium resembled a chain of berries, as you can see in the image on the left.
A decade later, Scottish surgeon and bacteriologist Alexander Ogston (1844-1929) named the staphylococcus bacterium based on the same formation as streptococcus. In this case, Dr. Ogston chose the Ancient Greek word staphyle meaning a bunch of grapes, and the stunning resemblance can easily be seen in the image on the right.
The -coccus suffix can be combined with other prefixes to indicate spherical bacteria: diplococcus, pneumococcus, etc.
Image of streptococcus bacterium courtesy Sanofi Pasteur used with permission under a creative commons 3.0 license.
Imageof staphylococcus bacterium courtesy Carl Zeiss Microscopy used with permission under a creative commons 3.0 license.
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