A theory is a supposition which we hope to be true a hypothesis is a supposition which we expect to be useful; fictions belong to the realm of art; if made to intrude elsewhere they become either make-believes or mistakes. - George Johnstone Stoney 1826 to 1911 Physicist
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
Francis Rogallo (1912–2009) USA – Rogallo wing.
Charles Fabry (1867–1945) together with Alfred Perot (1863–1925) France – Fabry–Pérot interferometer (physics).
Enrico Forlanini (1848–1930) Italy – Steam helicopter hydrofoil Forlanini airships.
Igor Sikorsky (1889–1972) Russia/USA – first four-engine fixed-wing aircraft (Russky Vityaz) first airliner and purpose-designed bomber (Ilya Muromets) modern helicopter Sikorsky-series helicopters.
Philip M. Parker (born 1960) USA – computer automated book authoring.
Harold P. Brown (1857–1944) USA – electrical safety equipment plastic rail bond electric contact alloy application of concrete with compressed air or steam.
James Clerk Maxwell (1831–1879) and Thomas Sutton Scotland – color photography.
Sheikh Muszaphar Shukor (born 1972) Malaysia – cell growth in outer space crystallization of proteins and microbes in space.
Muhammad al-Fazari (d. 796/806) Persia – astrolabe.
William Lee (1563–1614) UK – Stocking frame knitting machine.
William Morrison (dentist) (1860–1926) USA – a.o. Cotton candy machine.
Franc Trkman (1903–1978) Slovenia – electrical switches accessories for opening windows.
George Washington Carver (c. 1864 – 1943) USA – agriculture.
Anastase Dragomir (1896–1966) Romania – Ejection seat.
Benjamin Chew Tilghman (1821–1897) USA – sandblasting.
Pavel Molchanov (1893–1941) Russia – radiosonde.
John Landis Mason (1826–1902) USA – Mason jars.
Albert Coons (1912–1978) USA – Immunofluorescence (microscopy).
Charles H. Henry (born 1937) USA – Quantum well laser.
Levi Strauss (1829–1902) USA – blue jeans.
Trial by combat of wits in disputations has no attraction for the seeker after truth; to him the appeal to experiment is the last and only test of the merit of an opinion conjecture or hypotheses. ~ Joseph Mellor - 1869 to 1938
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
Did the genome of our cave-dwelling predecessors contain a set or sets of genes which enable modern man to compose music of infinite complexity and write novels with profound meaning? …It looks as though the early Homo was already provided with the intellectual potential which was in great excess of what was needed to cope with the environment of his time.” - Susumu Ohno 1928 to 2000 Geneticist
Trial by combat of wits in disputations has no attraction for the seeker after truth; to him the appeal to experiment is the last and only test of the merit of an opinion conjecture or hypotheses. - Joseph Mellor 1869 to 1938 Chemist
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
In our work we are always between Scylla and Charybdis; we may fail to abstract enough and miss important physics or we may abstract too much and end up with fictitious objects in our models turning into real monsters that devour us. ~ Murray Gell-Mann b. 1929
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
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