Johann Bernoulli daws qhov teeb meem no qhia tau hais tias lub cycloid uas tso cai rau cov khoom kom ncav cuag txoj kab ntsug sai tshaj plaws yog qhov uas txiav cov kab ntsug ntawm txoj cai kaum. Muaj ntau cov ntaub ntawv nyob rau hauv cov ntawv xov xwm nrog Varignon muab rau hauv [1].
Leej twg hais txog qhov teeb meem Brachistochrone?
In the lig 17th century the Swiss mathematician Johann Bernoulli tau tawm tsam los daws qhov teeb meem no.
Brachistochrone ua haujlwm li cas?
Hauv physics thiab lej, brachistochrone nkhaus (los ntawm Ancient Greek βράχιστος χρόνος (brákhistos khrónos) 'lub sij hawm luv tshaj'), los yog nkhaus ntawm qhovntsej thiaj tsis mob, yog ib qho dag ntawm lub dav hlau ntawm taw tes A thiab qis dua. B, qhov twg B tsis ncaj nraim hauv qab A, ntawm uas cov hlaws swb tsis muaj kev sib txhuam hauv qab ntawm…
Leej twg nrhiav tau cycloid?
Lub xyoo pua 17th Dutch lej Christiaan Huygens nrhiav pom thiab ua pov thawj cov khoom ntawm cov cycloid thaum tshawb nrhiav cov pendulum moos tsim kom raug siv rau hauv navigation.
Vim li cas brachistochrone ceev tshaj?
Qhov teeb meem brachistochrone yog ib qho uas tig mus ncig nrhiav qhov nkhaus uas koom nrog ob lub ntsiab lus A thiab B uas nyob ntawm qhov siab sib txawv, xws li B tsis ncaj qha hauv qab A, yog li ntawd poob pob zeb hauv qab kev cuam tshuam ntawm ib qho chaw gravitational tsis sib xws raws txoj kev no yuav ncav cuag Bnyob rau lub sijhawm sai tshaj plaws.
