धरती के दूसरी ओर तक एक सुरंग कैसे बनाएं : हिंदी पीडीऍफ़ पुस्तक – सामाजिक | Dharati Ke Doosari Aor Tak Ek Surang Kaise Banayen : Hindi PDF Book – Social (Samajik)
Pustak Ka Vivaran : Agar Kisi Geezar kee chapet mein Aa gaye to Tezi se Nikalati Bhap ya ubalata Pani Tumhen dharatee ke Upar hava mein uchhal dega. Hava se Neeche Dharati par Aane ke bad Tumhen phir se khudai karani padegi. Das ya bees meel aur khadai karo. phir tum aisee chattanon take pahunch jayoge jinhen basalt kaha jata hai: Basalt kale rang kee sakht, bharee aur chikani chadattanyen hoti hain. Dharati ke oopar, har or, do se teen meel moti……….
Description about eBook : If you are in the grip of a geyser, the steam or boiling water coming out quickly will make you jump on the earth. After coming down to earth from the air, you will have to dig again. Cut ten or twenty more miles. Then you will reach the rocks, which are called ‘Basalt’: Basalt is a hard, heavy and smooth black color. Above the earth, two to three miles thick ………..
