Prithvi Ki Golai: Hamare Grah Ke Aakar Ka Rahasya
Prithvi, hamara grah, apni golai aur aakar ke baare mein jaanne mein hamesha se logon ka rujhan raha hai. Purane darshanik se lekar aaj ke vaigyanik tak, hamare ghar ko vishal akashganga mein samajhne ki ichha ne hamara man moh liya hai. Is lekh mein hum "Prithvi ki golai kitni hai?" ke vishay par vichar karne wale hain aur hamare grah ke aakar ko samajhne wale ajeeb tathyon par prakash dalenge.
Prithvi ki Akar ki Vyaakhya:
Prithvi ek puri golakar nahin hai, balki yah dhwaniyon mein thoda peeth se pees jati hai aur kattarrekha par ubhri hoti hai. Is aakar ko 'oblate spheroid' kaha jata hai, jaisa ki ek golakar hai jise kattarrekha ke aaspass se dabaya gaya aur kattarrekha ke aaspass se phailaya gaya hai.
Prithvi ki Kattarrekha Ka Diameter:
Prithvi ki kattarrekha ka diameter lagbhag 12,742 kilometer (7,918 mil) hai. Yah matra Prithvi ke kattarrekha ke beech se lambi doori ko darshata hai, joki grah ke kendr se hokar guzarti hai.
Kendriya Diameter:
Prithvi ka kendriya diameter, yani ki ek dhruv se dusre dhruv tak ki sabse chhoti doori, lagbhag 12,714 kilometer (7,900 mil) hai. Is aakar mein thoda kam hota hai kyonki grah oblate hai, yani ki peeth se pees hui.
Prithvi ki Paridhi:
Prithvi ki paridhi ka anuman lagane ke liye, hamen ek taar vikalp ko grah ke kattarrekha ke aaspass lapetna hai. Prithvi ki paridhi lagbhag 40,075 kilometer (24,901 mil) hai. Yah maan Prithvi ke kattarrekha ke aaspass poori ghumane ke liye ki gayi doori hai.
Prithvi ki Chaturai:
Prithvi ki chaturai lagbhag 510.1 million varg kilometer (196.9 million varg mil) hai. Is hisab se, hamare grah ke poore parvat aur jal nadiyon ka vistar shamil hai.
Prithvi ki Golaayu:
Prithvi ki golaayu ki ganana, uski ausat banavat ka upayog karke ki ja sakti hai, jo lagbhag 6,371 kilometer (3,959 mil) hai. Prithvi ki anumanit golaayu lagbhag 1.08321 trillion cubic kilometer (259.875 billion cubic mil) hai. Yah bhari matra Prithvi ke andar ke vishal antariksh ko darshata hai
