jvaar-bhaata
dharati par sthit saagaron ke jal-star ka saamaanya-star se upar uthana jvaar tatha neeche girna bhaata kahalaata hai. jvaar-bhaata ki ghatna keval saagar par hi laagoo naheen hoti balki un sabhi cheejon par laagoo hoteen hain jin par samay evam sthaan ke saath parivrtanasheel gurutv bal lagta hai. (jaise thos jameen par bhi)
pruthvi, chandrama aur soorya ki paarasparik gurutvaakarshan shakti ki kriyaasheelata hi jvaar-bhaata ki utpatti ka pramukh kaaran hain.
jvaar-bhaata ke prakaar
- uchch jvaar
- jab soorya, pruthvi tatha chandrma ek seedh mein hote hain.
- nimn jvaar
- jab soorya, pruthvi tatha chandrma samakonik avastha mein hote hain.
inhein bhi dekhein
baahari kadiyaaain
- Our Restless Tides: NOAA's practical & short introduction to tides.
- WWW Tide and Current Predictor