positive rays
21ray — 1. A beam of light, heat, or other form of radiation. The rays from radium and other radioactive substances are produced by a spontaneous disintegration of the atom; they are electrically charged particles or electromagnetic waves of extremely… …
22isotope — isotopic /uy seuh top ik/, adj. isotopically, adv. /uy seuh tohp /, n. Chem. any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in… …
23Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …
24Solar wind — For other uses, see Solar wind (disambiguation). The solar wind is a stream of charged particles ejected from the upper atmosphere of the Sun. It mostly consists of electrons and protons with energies usually between 1.5 and 10 keV. The stream of …
25Kristian Birkeland — Kristian Olaf Birkeland (December 13, 1867 June 15, 1917) was born in Christiania (Oslo today) and wrote his first scientific paper at the age of 18. He organized several expeditions to Norway s high latitude regions where he established a… …
26Thomson , Sir Joseph John — (1856–1940) British physicist Thomson, who was born in Manchester, entered Owens College (later Manchester University) at the age of 14. After studying engineering and then the sciences, he won a scholarship to Trinity College, Cambridge… …
27Anode ray — Anode rays (or Canal rays) were observed in experiments by a German scientist, Eugen Goldstein, in 1886. Goldstein used a gas discharge tube which had a perforated cathode. A ray is produced in the holes (canals) in the cathode and travels in a… …
28Goldstein, Eugen — ▪ German physicist born Sept. 5, 1850, Gleiwitz, Prussia died Dec. 25, 1930, Berlin German physicist known for his work on electrical phenomena in gases and on cathode rays; he is also credited with discovering canal rays. Goldstein… …
29Thomson, Sir J.J. — ▪ British physicist Introduction in full Sir Joseph John Thomson born Dec. 18, 1856, Cheetham Hill, near Manchester, Eng. died Aug. 30, 1940, Cambridge, Cambridgeshire English physicist who helped revolutionize the knowledge of atomic… …
30Kanalstrahlen — kanaliniai spinduliai statusas T sritis fizika atitikmenys: angl. canal rays; positive rays vok. Kanalstrahlen, m; positive Strahlen, m rus. анодные лучи, m; каналовые лучи, m; положительные лучи, m pranc. rayons canaux, m; rayons de Goldstein,… …
