Isaak Newton akavakira physics yake pane nguva yakakwana uye nzvimbo, iyewo akaomerera kunheyo yehukama yaGalileo Galilei achidzokorora chaizvo kune michina yemagetsi. Izvi zvinogona kutaurwa se: kusvika pamitemo yemagetsi, vese vanoona mune inertial motion vane ropafadzo yakaenzana, uye hapana chinzvimbo chinodiwa chekufamba chinogona kuverengerwa kune chero munhu anoona inertial. Zvisinei, maererano ne electromagnetic theory uye electrodynamics, mukati mezana ramakore rechi19 dzidziso yemafungu yechiedza sekukanganisa kwe "chiedza chemukati" kana Luminiferous ether yakagamuchirwa zvakanyanya, dzidziso inosvika pakuvandudzwa kwayo kwakanyanya mubasa raJames Clerk Maxwell. Zvinoenderana nedzidziso yaMaxwell, zvese zvinoonekwa uye zvemagetsi zvinowedzera kuburikidza neizvozvo, izvo zvakaratidza kuti zvinofanirwa kuve zvichikwanisika kuyedza kuona kufamba kweether. Mubvunzo: Chii chinonzi dzidziso yaMaxwell?
zviitiko zvose zvemaziso nemagetsi zvinopararira kupfurikidza nomusikirwo iwoyo, uyo wakakarakadza kuti kunofanira kuva kunobvira kuedza kusarudza kufamba kune chokuita neether