Suppose we have an unknown number of objects. When counted in threes 2 are left over when counted in fives 3 are left over and when counted in sevens 2 are left over. How many objects are there? ~ Sunzi The Mathematical Classic of Sunzi - Chinese mathematics problem from c. 450 AD
A physicist is an atom’s way of knowing about atoms. - George Wald 1906 to 1997 Neurobiologist
Dmitri Garbuzov (1940–2006) Russia/USA – continuous-wave-operating diode lasers (together with Zhores Alferov) high-power diode lasers.
Carl Friedrich Claus (c. 1883) Germany – Claus process (petrochemistry).
Petrache Poenaru (1799–1875) Romania – fountain pen.
Reverend Dr Robert Stirling (1790–1878) Scotland – Stirling engine.
Coenraad Johannes van Houten (1801–1887) Netherlands – cocoa powder cacao butter chocolate milk.
Ugo Cerletti (1877–1963) together with Lucio Bini (1908–1964) Italy – Electroconvulsive therapy.
Henry Perky (1843–1906) USA – shredded wheat.
Eric Fossum (born 1957) USA – intra-pixel charge transfer in CMOS image sensors.
Albert Hofmann (1906–2008) Switzerland – LSD.
Frank Whittle (1907–1996) UK – co-inventor of the jet engine.
Clarence Birdseye (1886–1956) USA – frozen food process.
Robert Swanson (1905–1994) Canada – Invented and developed the first multi-chime air horn for use with diesel locomotives.
Ivan Kulibin (1735–1818) Russia – egg-shaped clock candle searchlight elevator using screw mechanisms a self-rolling carriage featuring a flywheel brake gear box and bearing an early optical telegraph.
Svyatoslav Fyodorov (1927–2000) Russia – radial keratotomy.
Charles Babbage (1791–1871) UK – analytical engine (semi-automatic).
Guido van Rossum (born 1956) The Netherlands – Python (programming language).
Igor Gorynin (born 1926) Russia – weldable titanium alloys high strength aluminium alloys radiation-hardened steels.
David Chaum (born 1955) USA – a.o. Digital signatures ecash.
Hans Lippershey (1570–1619) The Netherlands – telescope.
William George Armstrong (1810–1900) UK – hydraulic accumulator.
(via YouTube)
We cannot define anything precisely! If we attempt to we get into that paralysis of thought that comes to philosophers who sit opposite each other one saying to the other ‘You don’t know what you are talking about!’ The second one says ‘What do you mean by know? What do you mean by talking? What do you mean by you?’ and so on. ~ Richard Feynman 1918 to 1988
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
This most beautiful system of the sun planets and comets could only proceed from the counsel and dominion of an intelligent and powerful Being. And if the fixed stars are the centres of other like systems these being formed by the like wise counsel must be all subject to the dominion of One; especially since the light of the fixed stars is of the same nature with the light of the sun. ~ Isaac Newton 1642 to 1727
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
I saw that people trying to synthesize gold and silver were working in ignorance and by false methods; I then perceived that they belonged to two classes the dupers and the duped. I pitied both of them. ~ Geber c. 712 – c. 815 AD
Although the alternate ‘wax and wane’ cycles are the rule rather than the exception in all fields of human endeavor in that of biological sciences the ‘wane’ is all too often indicative of a justified loss of faith in the rational and methodical approach that had at first raised so much hope. ~ Rita Levi-Montalcini 1909 to 2012 Neurobiologist
We must reason in natural philosophy not from what we hope or even expect but from what we perceive. ~ Humphry Davy - 1778 to 1829
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