van de Graaffn.

Brit.

/ˌvan də ˈɡrɑːf/,

/ˌvan də ˈɡraf/, U.S.

/ˈvæn də ˌɡræf/

Forms: also Van de Graaff.

Etymology: < the name of R. J. van de Graaff (1901–67), U.S. physicist.

Used attributively and absol. to designate a machine devised by van de Graaff for generating electrostatic charge by means of a vertical endless belt which collects charge at its lower end from needle points connected to a voltage source and carries it to similar points at the top connected to the inside of a metal dome, whose potential is thereby increased; also a particle accelerator based on this machine.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > [noun] > static electricity > instrument for generating

electrophore1777

electrophorus1777

Wimshurst machine1886

van de Graaff1934

the world > matter > physics > atomic physics > particle physics > particle accelerator > [noun] > types of

linac1950

storage ring1956

van de Graaff1973

1934 Rev. Sci. Instruments V. 18/1 The paper discusses the design and construction of a Van de Graaff electrostatic generator capable of an output of 500 microamperes and more than a million volts.

1961 G. R. Choppin Exper. Nucl. Chem. xii. 193 Positive ions..are obtainable in cyclotrons as well as Van de Graaff and linear accelerators.

1973 Physics Bull. Dec. 722/1 Both tandem van de Graaffs and cyclotrons currently accelerate a variety of high quality beams.

1980 J. W. Hill Intermediate Physics xviii. 172 Two metal plates about 5–7 cm apart are..connected to..earth and the dome of a Van de Graaff generator.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).

单词	van de graaff
释义	van de Graaffn. Brit. /ˌvan də ˈɡrɑːf/, /ˌvan də ˈɡraf/, U.S. /ˈvæn də ˌɡræf/ Forms: also Van de Graaff. Etymology: < the name of R. J. van de Graaff (1901–67), U.S. physicist. Used attributively and absol. to designate a machine devised by van de Graaff for generating electrostatic charge by means of a vertical endless belt which collects charge at its lower end from needle points connected to a voltage source and carries it to similar points at the top connected to the inside of a metal dome, whose potential is thereby increased; also a particle accelerator based on this machine. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > [noun] > static electricity > instrument for generating electrophore1777 electrophorus1777 Wimshurst machine1886 van de Graaff1934 the world > matter > physics > atomic physics > particle physics > particle accelerator > [noun] > types of linac1950 storage ring1956 van de Graaff1973 1934 Rev. Sci. Instruments V. 18/1 The paper discusses the design and construction of a Van de Graaff electrostatic generator capable of an output of 500 microamperes and more than a million volts. 1961 G. R. Choppin Exper. Nucl. Chem. xii. 193 Positive ions..are obtainable in cyclotrons as well as Van de Graaff and linear accelerators. 1973 Physics Bull. Dec. 722/1 Both tandem van de Graaffs and cyclotrons currently accelerate a variety of high quality beams. 1980 J. W. Hill Intermediate Physics xviii. 172 Two metal plates about 5–7 cm apart are..connected to..earth and the dome of a Van de Graaff generator. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021). < n.1934
随便看	flow-pipe flow-rate flow-sheeting flow-structure flowage flowage-line flowageline flowages flowblue flowdike flowed flower flower arrangement flower children flower constantinople flower decoration flower girl flower jaunette flower of an hour flower of bristol flower of chivalry flower of jove flower of parnassus flower of the field flower of the night