गुरुत्वाकर्षण  हिन्दी देवनागरी में पढ़ें।

gurutvakarshan (angrezi: Gravitation) ek padarth dvara doosare ki or akrisht hone ki pravritti hai. gurutvakarshan ke bare men pahali bar koee ganitiy sootr dene ki koshish aijak nyootan dvara ki gayi thi. unhonne gurutvakarshan siddhant ka pratipadan kiya. nyootan ke siddhant ko bad men albart ainstain dvara sapekshata siddhant se badala gaya. isase poorv varahamihir ne kaha tha ki kisi prakar ki shakti hi vastuon ko prithvi par chipakae rakhati hai.

gurutvakarshan brahmand men maujood char maulik balon men se ek bal hai. yah antariksh men maujood dravyaman vali sabhi chijon ke bich ek lnbi doori ka akarshan bal hai. isaki vajah se hi chijon ko vajan prapt hota hai. prithvi par gurutvakarshan nirntar prati seknd 9.8 varg mitar (9.8 m/s2) jitana hota hai. yah hamen prithvi ke bahar girane se bachata hai aur prithvi ko apani soory ki asapas ki kaksha men banae rakhata hai. gurutvakarshan ki vajah se hi sadhe char arab sal pahale prithvi aur sooraj ki utpati huee thi. yah ashcharyajanak bat hai ki brahmand men har bhari vastu doosari chijon ko apani or akarshit karati hai. isaka arth yah hua ki hamara ghar, prithvi, 25 lakh prakash varsh door endromeda akashagnga men sthit blaikahol, yah sabhi apase gurutviy bal se akarshit hain aur ap unase.[1]

mahan vaigyanik aijek nyootan ne 17vin sadi men pata lagaya ki do vastuon ke bich ki doori ke varg jitane antar par gurutvakarshan bal ki takat ghatati hai, to yadi ap kisi bhi chij se doguna antar par honge, tab gurutvakarshan ek chauthaee jitana hi majaboot hoga. unhonne yah bhi pata lagaya ki gurutvakarshan ki shakti vastu ke dravyaman ke anupat men hoti hai. arthath padarth jitana bada hoga, usaka gurutvakarshan bal utana hi majaboot hoga.

ham sab prithvi ka khinchav mahasoos kar sakate hain, lekin chandrama ke khinchav ko mahasoos nahin kar pate, kyonki chandrama chhota hain aur ham se bahut hi door hai. lekin usaka gurutvakarshan prithvi par samudr men jvar paida karane ke lie saksham hai. chndrama par gurutvakarshan bal prithvi par maujood gurutvakarshan bal se 16 pratishat jitana hai aur mngal grah ka prithvi se 38 pratishat jitana hai, jabaki sauramndal ke sabase bade grah guru ka gurutvakarshan bal prithvi ke gurutvakarshan bal se 2.5 guna hai.


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tika tippani aur sndarbh

  1. gurutvakarshan kya hai (hindi) apnikahaani.com. abhigaman tithi: 15 julaee, 2017.

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