वायुयान की कहानी : बिमल कुमार श्रीवास्तव द्वारा हिंदी पीडीऍफ़ पुस्तक – सामाजिक | Vayuyan Ki Kahani : by Bimal Kumar Shrivastav Hindi PDF Book – Social (Samajik)
Pustak Ka Vivaran : Right Bandhuon dvara Nirmit udan machine ka svaroop tatha kshamata aaj ke yug ke vimanon ke samane ek bachche jaisi najar Aati hai. Aaj ke viman usaki tulana mein kai guna bade, bhari, shaktishali, tatha adhik kshamata vale hote hai. Pratyaksh hai ki in vimanon ka sansar ab bahut vikasit ho chuka hai. Vimanon ke bare mein adhik se adhik Jankari prapt…………
Description about eBook : The form and capability of the ‘flying machine’, produced by the Wright brothers, looks like a child in front of the planes of today’s era. Today’s aircraft are many times bigger, heavier, powerful, and more efficient than that. It is clear that the world of these aircraft is now very developed. Get more and more information about planes………….
