Find the number such that if the whole of it is added to one-seventh of it the result will be nineteen. ~ The Ahmes Papyrus Ancient Egyptian mathematics problem from c. 2200 BC
In its efforts to learn as much as possible about nature modern physics has found that certain things can never be “known” with certainty. Much of our knowledge must always remain uncertain. The most we can know is in terms of probabilities. ~ Richard Feynman 1918 to 1988
Gustav Tauschek (1899–1945) Austria – Drum memory.
Colin Murdoch (1929–2008) New Zealand – a.o. Tranquillizer gun disposable hypodermic syringe.
Granville Woods (1856–1910) USA – the Synchronous Multiplex Railway Telegraph.
Rudolf Kompfner (1909–1977) USA – Traveling-wave tube.
Josephine Cochrane (1839–1913) USA – dishwasher.
Jean Bernard Léon Foucault (1819–1868) France – Foucault pendulum gyroscope eddy current.
Abu al-Qasim al-Zahrawi (Abulcasis) (936–1013) Islamic Spain – catgut surgical suture various surgical instruments and dental devices.
Nicholas Callan (1799–1864) Ireland – a.o. Induction coil.
Dawon Kahng (1931–1992) South Korea together with Simon Sze (1936–) Taiwan/USA – Floating-gate MOSFET.
Raul Cuero (born 1948) Buenaventura Colombia see Inventions and patents list.
George Eastman (1854–1932) USA – roll film.
Joseph G. Gall (born 1928) USA – In situ hybridization (cell biology).
Auguste and Louis Lumière (1862–1954 and 1864–1948 resp.) France – Cinématographe.
Edwin Howard Armstrong (1890–1954) USA – FM radio.
Hans Christian Gram (1853–1938) Denmark / Germany – Gram staining (histology).
Andreas Stihl (1896–1973) Switzerland/Germany – Electric chain saw.
William Morrison (dentist) (1860–1926) USA – a.o. Cotton candy machine.
Charles Simonyi (born 1948) Hungary – Hungarian notation.
Spede Pasanen (1930–2001) Finland – a.o. ski jumping sling boat ski.
Herman Hollerith (1860–1929) USA – recording data on a machine readable medium tabulator punched cards.
Everything that human beings or living animals do is done by protein molecules. And therefore the kind of proteins that one has and therefore the ability one has is determined by the genes that one has. ~ Har Gobind Khorana 1922 – 2011 - Molecular Biologist
A detective with his murder mystery a chemist seeking the structure of a new compound use little of the formal and logical modes of reasoning. Through a series of intuitions surmises fancies they stumble upon the right explanation and have a knack of seizing it when it once comes within reach. ~ Gilbert Lewis 1875 – 1946
This is an era of specialists each of whom sees his own problem and is unaware of or intolerant of the larger frame into which it fits. ~ Rachel Carson 1907 to 1964 - Marine Biologist
There may be babblers wholly ignorant of mathematics who dare to condemn my hypothesis upon the authority of some part of the Bible twisted to suit their purpose. I value them not and scorn their unfounded judgment. - Nicolaus Copernicus 1473 – 1543 Astronomer Mathematician
A cylinder of air reaching to the top of the atmosphere is of equal weight with a cylinder of water about 33 feet high. ~ Isaac Newton 1642 to 1727
The development of biology is going to destroy to some extent our traditional grounds for ethical belief and it is not easy to see what to put in their place. ~ Francis Crick 1916 – 2004 Molecular Biologist
It is strange that only extraordinary men make the discoveries which later appear so easy and simple. - Georg C. Lichtenberg 1742 to 1799 Physicist
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