सौर ऊर्जा की कहानी : अरविन्द गुप्ता द्वारा हिंदी पीडीऍफ़ पुस्तक – विज्ञान | Saur Urja Ki Kahani : by Arvind Gupta Hindi PDF Book – Science (Vigyan)
Pustak Ka Vivaran : Bharat Athah dhoop hai. iseeliye hamen oorja ke is svachchh aur shashvat srot ko poori Gambheerata ke sath lena chahiye. Desh ke sabase hoshiyar aur jaheen logon ko saur oorja par shodh karana chahiye. Unhen duniya ke sabase saste solar-sels aur sabase behatareen solar-choolhen dijain karane chahiye…………
Description about eBook : India is very sunny. That is why we should take this clean and eternal source of energy seriously. The smartest and the brightest people of the country should do research on solar energy. They should design the world’s cheapest solar cells and the best solar stoves…………
