Search results
Results from the WOW.Com Content Network
Robert Hooke FRS (/ h ʊ k /; 18 July 1635 – 3 March 1703) [4] [a] was an English polymath who was active as a physicist ("natural philosopher"), astronomer, geologist, meteorologist and architect. [5] He is credited as one of the first scientists to investigate living things at microscopic scale in 1665, [6] using a compound microscope that ...
In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all living organisms and also the basic unit ...
German grammar. German sentence structure is the structure to which the German language adheres. German is an OV (Object-Verb) language. [1] Additionally, German, like all west Germanic languages except English, uses V2 word order, though only in independent clauses. In dependent clauses, the finite verb is placed last.
University of Jena, University of Dorpat. Author abbrev. (botany) Schleid. Matthias Jakob Schleiden (German: [maˈtiːas ˈjaːkɔp ˈʃlaɪdn̩]; [1][2] 5 April 1804 – 23 June 1881) was a German botanist and co-founder of cell theory, along with Theodor Schwann and Rudolf Virchow. He published some poems and non-scientific work under the ...
Microsurgery is a general term for surgery requiring an operating microscope.The most obvious developments have been procedures developed to allow anastomosis of successively smaller blood vessels and nerves (typically 1 mm in diameter) which have allowed transfer of tissue from one part of the body to another and re-attachment of severed parts.
Calvin Hooker Goddard (30 October 1891 – 22 February 1955) was a forensic scientist, army officer, academic, researcher and a pioneer in forensic ballistics.He examined the bullet casings in the 1929 St. Valentine's Day Massacre and showed that the guns used were not police issued weapons, leading the investigators to conclude it was a mob hit.
Microscopy. Scanning electron microscope image of pollen (false colors) Microscopic examination in a biochemical laboratory. Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye). [1]
The process of cell division as observed under a microscope was first discovered by Hugo von Mohl in 1835 as he worked on green algae Cladophora glomerata. [ 3 ] Mohl's writings cover a period of forty-four years; the most notable of them were republished in 1845 in a volume entitled Vermischte Schriften (For lists of his works see Botanische ...