Video narration
Sochiye, chalti bus achanak brake lagaye - aap aage ki or jhukenge. Ab dharti achanak sirf paanch second ke liye ghoomna band kar de, to kya hoga? Bus rukti hai, lekin aapka sharir apni chaal banaye rakhta hai. Bhumadhya rekha par dharti lagbhag 1,670 km/h ki raftaar se ghoomti hai; doosri jagah yeh raftaar kam hoti hai. Hum aam taur par is chaal ko mehsoos nahin karte, kyunki sab kuch dharti ke saath ghoomta rehta hai. Is kalpana mein satah rukti hai, lekin hawa, samudra aur baaki cheezen apni gati banaye rakhti hain. Khatra sirf dharti ke rukne mein nahin. Itni tez gati se chalti hawa vinaashkari asar daal sakti hai; samudra ka paani bhi apni gati se taton par bhaari tabaahi macha sakta hai. Yeh kalpanik sthiti hai: gyaat prakritik prakriyaon se dharti ka achanak rukna sambhav nahin. To jawaab hai - paanch second bhi surakshit nahin honge; dharti ruke, to hawa, paani aur hum apni gati se aage badhenge.