How Close Are We to Cavity-Proof Teeth?


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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 Chemist Physicist

Geometry inasmuch as it is concerned with real space is no longer considered a part of pure mathematics; like mechanics and physics it belongs among the applications of mathematics. ~ Hermann Weyl 1885 to 1955 - Mathematician and Theoretical Physicist


How Close Are We to Cavity-Proof Teeth?

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List of inventors!
List of inventors!

James Fergason (born 1934) USA – improved liquid crystal display.

William Saville-Kent (1845–1908) UK/Australia – Pearl culture see also Mikimoto Kōkichi.

Colin Murdoch (1929–2008) New Zealand – a.o. Tranquillizer gun disposable hypodermic syringe.

Mary Anderson (1866–1953) United States – windshield wiper blade.

Bjarne Stroustrup (born 1950) Denmark – C++ (programming language).

Mikhail Koshkin (1898–1940) Russia – T-34 medium tank the best and most produced tank of World War II[7].

Alexander Procofieff de Seversky (1894–1974) Russia/United States of America – first gyroscopically stabilized bombsight ionocraft also developed air-to-air refueling.

Juan de la Cierva (1895–1936) Spain – the autogyro.

James Gosling (born 1955) USA – Java (programming language).

Gustav Giemsa (1867–1948) Germany – Giemsa stain (histology).

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.

Zhang Heng (78–139) China – Seismometer first hydraulic-powered armillary sphere.

Joseph Henry (1797–1878) Scotland/USA – electromagnetic relay.

Charles Dow (1851–1902) USA – Dow Jones Industrial Average.

Frank Hornby (1863–1936) UK – invented Meccano.

Vladimir Barmin (1909–1993) Russia – first rocket launch complex (spaceport).

Wallace H. Coulter (1913–1998) USA – Coulter counter (cell biology).

Albert Coons (1912–1978) USA – Immunofluorescence (microscopy).

Robert N. Hall (born 1919) USA – a.o. Semiconductor laser.

Richard J. Gatling (1818–1903) USA – wheat drill first successful machine gun.


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Brilliant Quotes By Famous And Awesome Scientists!

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

Before the Copernican revolution it was natural to suppose that God’s purposes were specifically concerned with the earth but now this has become an unplausible hypothesis. If it is the purpose of the Cosmos to evolve mind we must regard it as rather incompetent in having produced so little in such a long time. ~ Bertrand Russell 1872 – 1970 - Mathematician and Philosopher

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

Why the dinosaurs died out is not known but it is supposed to be because they had minute brains and devoted themselves to the growth of weapons of offense in the shape of numerous horns. ~ Bertrand Russell 1872 – 1970 - Mathematician and Philosopher

The country which is in advance of the rest of the world in chemistry will also be foremost in wealth and in general prosperity. ~ William Ramsay - 1852 to 1916

What is possible in the Cavendish Laboratory may not be too difficult in the sun. - Sir Arthur Eddington 1882 to 1944 Astronomer Physicist Mathematician

Physics is very muddled again at the moment; it is much too hard for me anyway and I wish I were a movie comedian or something like that and had never heard anything about physics! ~ Wolfgang Pauli 1900 – 1958


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