Статьи

Jean Antoine Nollet (19.02.1700-2.04.1770) was a French experimental physicist and a member of the Paris Academy of Sciences (1739).

Lothar Wolfgang Nordheim (born 7.11.1899) is a theoretical physicist.

John Mitchell Nuttall (21.07.1890-28.01.1958) was an English physicist.

Ivan Vasilyevich Obreimov (8.03.1894—2.12.981) was a Soviet experimental physicist and an academician (1958; corresponding member 1933).

Giuseppe Stanislao Occhialini (born 5.03.1907) is an Italian physicist and a member of the Accademia dei Lincei (1958).

Georg Simon Ohm (16.03.1787-6.07.1854) was a German physicist, a corresponding member of the Berlin Academy of Sciences (1839).

Susumu Okubo (born 22.02.1930) is a Japanese theoretical physicist.

Lev Borisovich Okun (born 7.07.1929) is a Soviet theoretical physicist and a corresponding member of the USSR Academy of Sciences (1966).

Units of length Point 0.254 mm Line 2.54 mm Inch 25.4 mm Vershok 44.4 mm Foot 304.8 mm Arshin ≈ 71.1 cm Sazhen ≈ 213.4 cm Verst = 500 sazhens = = 1500 arshins= =1066.8 m ≈ 1.07 km Units of area Square line ≈ 6.45 mm 2 Sq…

Marcus Laurence Elwin Oliphant (born 8.10.1901) is an Australian physicist and a member of the Australian Academy of Science, of which he was president in 1954 — 57.

Karol Olszewski (29.01.1846-24.03.1915) was a Polish physicist and chemist and a member of the Polish Academy of Sciences (1888).

AIM OF THE EXPERIMENT: To show that the centre of gravity is the point that determines the balance of a body.

Lars Onsager (27.02.1903-5.10.1976) was an American chemist and physicist, one of the creators of non-equilibrium thermodynamics, a member of the National Academy of Sciences (1947).

Robert Oppenheimer (22.04.1904-20.02.1967) was an American theoretical physicist, a member of the National Academy of Sciences (1941).

Optical quantities Name Symbol Wavelength λ Illuminance E Period of oscillation T Refractive index (refraction coefficient) n Luminous flux Ф Aperture ratio of a lens f Luminous intensity I Speed of light c Linear magnif…

The addition of oscillations:

Yuri Andreyevich Osipyan (born 15.02.1931) is a Soviet physicist, an academician (1981, corresponding member 1972).

Mikhail Vasilyevich Ostrogradsky (24.09.1801-1.01.1862) was a Russian mathematician and mechanician, a member of the St Petersburg Academy of Sciences (1830).

Wilhelm Friedrich Ostwald (2.09.1853 —4.04.1932) was a German physical chemist and idealist philosopher, a corresponding member of the Berlin Academy of Sciences (1905).

Antonio Pacinotti (17.06.1841-24.03.1912) was an Italian physicist and inventor and a member of the Accademia dei Lincei (1898).

Abraham Pais (born 19.05.1918) is an American theoretical physicist, a member of the National Academy of Sciences (1962).

Lénárd Pál (born 7.02.1925) is a Hungarian physicist, a member of the Hungarian Academy of Sciences (1974).

Julio Martínez Palacios (12.04.1891—21.02.1970) was a Spanish physicist, a member of the Spanish Royal Academy of Sciences and from 1966 its president.

Friedrich Adolf Paneth (31.08.1887—17.09.1958) was an Austrian radiochemist and chemist, one of the pioneers of radiochemistry.

Wolfgang Kurt Hermann Panofsky (born 24.04.1919) is an American physicist and a member of the National Academy of Sciences (1954).