Physics is actually too hard for physicists. ~ David Hilbert 1862 to 1943 (Mathematician)
On the principle of successive variations not always supervening at an early age and being inherited at a corresponding not early period of life we can clearly see why the embryos of mammals birds reptiles and fishes should be so closely alike and should be so unlike the adult forms. ~ Charles Darwin 1809 to 1882 - Naturalist Evolutionary Biologist
John Harington (1561–1612) UK – the flush toilet.
Karl Ferdinand Braun (1850–1918) Germany – cathode-ray tube oscilloscope.
Alfred Binet (1857–1911) France – with his student Théodore Simon (1872–1961) first practical Intelligence test.
Thomas Crapper (1836–1910) UK – ballcock (toilet valve).
Luigi Palmieri (1807–1896) Italy – seismometer.
Gene Dolgoff (inv. c. 1985) USA – LCD projector.
Nikolai Lebedenko Russia – Tsar Tank the largest armored vehicle in history.
Daniel Axelrod (inv. 1980) USA – Total internal reflection fluorescence microscope.
John Herschel (1792–1871) UK – photographic fixer (hypo) actinometer.
Donald A. Glaser (1926–2013) USA – Bubble chamber.
Bartolomeo Cristofori (1655–1731) Italy – piano.
Adolf von Baeyer (1835–1917) Germany – a.o. Fluorescein synthetic Indigo dye Phenolphthalein.
Zénobe Gramme (1826–1901) Belgium/France – Gramme dynamo.
Samuel Morse (1791–1872) USA – telegraph early Morse code see also Morse Code controversy.
Heinrich Göbel (1818–1893) Germany – incandescent lamp.
Anatoly Kharlampiev (1906–1979) Russia – Sambo (martial art).
Andrei Tupolev (1888–1972) Russia – turboprop powered long-range airliner (Tupolev Tu-114) turboprop strategic bomber (Tupolev Tu-95).
Arturo Caprotti (1881–1938) Italy – Caprotti valve gear.
James Watt (1736–1819) Scotland – improved Steam engine.
Frank Whittle (1907–1996) UK – co-inventor of the jet engine.
It is thus probable that germs of the lowest organisms known to us are continually being carried away from the earth and the other planets upon which they exist. As seeds in general so most of these spores thus carried away will no doubt meet death in the cold infinite space of the universe. Yet a small number of spores will fall on some other world and may there be able to spread life if conditions be suitable. ~ Svante Arrhenius 1859 to 1927 - Physical Chemist
Division is esteemed one of the busiest operations of Arithmetic and such as requireth a mind not wandering or settled upon other matters. ~ Thomas Hylles The arte of vulgar arithmeticke 1600 - Mathematician
The invention of logarithms came to the world as a bolt from the blue. No previous work had led up to it… It stands isolated breaking in upon human thought abruptly without borrowing from the work of other intellects or following known lines of mathematical thought. ~ John Moulton 1844 – 1921 - Mathematician
The literary convention that numbers less than 10 should be given in words is often highly unsuitable in mathematics… The excessive use of the word forms is regrettably spreading at the present time. ~ J.E. Littlewood 1885 – 1977 - Mathematician
Valid criticism does you a favor. - Carl Sagan 1934 to 1996 Astronomer
Actually everything that can be known has a Number; for it is impossible to grasp anything with the mind or to recognize it without this. - Philolaus c. 470 – c. 385 BC Scientist and Philosopher
Geometry is one and eternal shining in the mind of God. That men share in it is among the reasons that Man is the image of God. ~ Johannes Kepler 1571 – 1630 Mathematician and Astronomer
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