Valid criticism does you a favor. - Carl Sagan 1934 to 1996 Astronomer
Archimedes’ finding that the crown was of gold was a discovery; but he invented the method of determining the density of solids. Indeed discoverers must generally be inventors; though inventors are not necessarily discoverers. - William Ramsay 1852 to 1916 Chemist
John Barber (1734–1801) UK – gas turbine.
Niklaus Wirth (born 1934) Switzerland – Pascal (programming language).
Charles Macintosh (1766–1843) Scotland – waterproof raincoat life vest.
Artem Mikoyan (1905–1970) Armenia/Russia – MiG-series fighter aircraft including world's most produced jet aircraft MiG-15 and most produced supersonic aircraft MiG-21 (together with Mikhail Gurevich).
Petro Prokopovych (1775–1850) Ukraine/Russia – early beehive frame queen excluder and other beekeeping novelties.
Arnold O. Beckman (1900–2004) USA – electric pH meter.
Robert Watson-Watt (1892–1973) Scotland – microwave radar.
William Cullen (1710–1790) UK – first artificial refrigerator.
Elmer Ambrose Sperry (1860–1930) USA – gyroscope-guided automatic pilot.
Igor Spassky (born 1926) Russia – Sea Launch platform.
Eduard Locher (1840–1910) Switzerland – Locher rack railway system.
Hans Tropsch (1889–1935) together with Franz Joseph Emil Fischer (1877–1947) Germany – Fischer–Tropsch process (refinery process).
Forrest Parry (1921–2005) USA – Magnetic stripe card.
Bi Sheng (Chinese: 畢昇) (c. 990–1051) China – clay movable type printing.
Emmett Chapman (1936–) US – Chapman Stick.
Kerim Kerimov (1917–2003) Azerbaijan and Russia – co-developer of human spaceflight space dock space station.
Jules Montenier (1895–1962) USA – modern anti-perspirant deodorant.
Lasse Hessel (born 1940) Denmark – Female condom.
Robert N. Hall (born 1919) USA – a.o. Semiconductor laser.
Toshitada Doi (born 1943) Japan together with Joop Sinjou Netherlands – Compact disc.
But though the professed aim of all scientific work is to unravel the secrets of nature it has another effect not less valuable on the mind of the worker. It leaves him in possession of methods which nothing but scientific work could have led him to invent. ~ James Clerk Maxwell 1831 to 1879
By ‘life ’ we mean a thing that can nourish itself and grow and decay. - Aristotle 384 BC to 322 BC Scientist Philosopher
The finding of the double helix thus brought us not only joy but great relief. It was unbelievably interesting and immediately allowed us to make a serious proposal for the mechanism of gene duplication. ~ James Watson 1928 – Present - Geneticist
Pierre Curie voluntarily exposed his arm to the action of radium for several hours. This resulted in damage resembling a burn that developed progressively and required several months to heal. Henri Becquerel had by accident a similar burn as a result of carrying in his vest pocket a glass tube containing radium salt. He came to tell us of this evil effect of radium exclaiming in a manner at once delighted and annoyed: “I love it but I owe it a grudge.” ~ Marie Curie 1867 to 1934
Science is the acceptance of what works and the rejection of what does not. That needs more courage than we might think. - Jacob Bronowski 1908 to 1974 Mathematician Biologist
In reality a theory in natural science cannot be without experimental foundations; physics in particular comes from experimental work. ~ Samuel C. C. Ting b. 1936
Although Nature needs thousands or millions of years to create a new species man needs only a few dozen years to destroy one. - Victor Scheffer 1906 to 2011 Biologist
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