ऊंची उड़ान : हिंदी पीडीऍफ़ पुस्तक – बच्चों की पुस्तक | Unchi Udan : Hindi PDF Book – Children’s Book (Bachchon Ki Pustak)
Pustak Ka Vivaran : Ho Sakata hai, Mere “Penguin” ke jo “Pankh” hain, ve Adhik chhote hon. Mein Motar ki Shakti ko Nirantar Aseem Seema tak Nahin Badha sakata, Atah propelar ki Gati ko Badhane se bhi Utthan, Veg ke varg ke Anupat mein badh jayega. Isaka hal Utthan kee satah ko Badhana hai, Jabaki Lambai ko utana hi Rakha jaye. Kabootar ki Apeksha, Albatros Adhik Achchha udata hai………..
Description about eBook : Maybe the “wings” of my “penguin” are much smaller. I cannot continuously increase the power of the motor to an infinite range, so increasing the speed of the propeller will also increase the lift, in proportion to the square of the velocity. The solution is to increase the surface of regeneration, while keeping the length the same. Albatros fly much better than pigeon …………
