Newtoni eelne füüsika areng
kiiruse, so 300 000 km/s.
From 1920 and into 1921 Michelson and Francis G. Pease became the first individuals to
measure the diameter of a star other than the Sun. They used an astronomical interferometer at
the Mount Wilson Observatory to measure the diameter of the super-giant star Betelgeuse. A
periscope arrangement was used to obtain a densified pupil in the interferometer, a method later
investigated in detail by Antoine Émile Henry Labeyrie for use in with "Hypertelescopes". The
measurement of stellar diameters and the separations of binary stars took up an increasing
amount of Michelson's life after this.
Aine struktuuri uurimise ajalugu ja tuumafüüsika areng. Milliste teaduste
areng mõjutas ainestruktuuri uuringuid. Millised avastused panid sellele
uurimussuunale aluse.
Joseph John Thomson
(18. detsember 1856 30. august 1940) oli inglise füüsik. Katsetega jõudis järeldusele, et
looduses eksisteerivad elementaarlaengud