साबुन के बुलबुले (और वह बल जो उन्हें गढ़ते हैं) : सी. वी. बॉयज द्वारा हिंदी पीडीऍफ़ पुस्तक – बच्चों की पुस्तक | Sabun Ke Bulbule (Aur Vah Bal Jo Unhen Gadhte Hai) : by C. V. Boys Hindi PDF Book – Children’s Book (Bachchon Ki Pustak)
Pustak Ka Vivaran : Anek Aise Mahan Vaigyanikon ne, jinke Anusandhan kary ne vigyan evan Praudyogiki ki Neev rakhi hai, Atyant sadharan upkaranon se apane prayog kiye hai. Fairade ne bhi aisa hi kiya. Keval ek purani botal aur Radoodi imarati lakdi ki sahayata se usane ek sthir-vaidyuteey utpadak Nirmit kiya. Iske madhyam se usane vidyut sambandhi kuchh dharanaon ka parikshan kiya……..
Description about eBook : Many such great scientists, whose research work has laid the foundation of science and technology, have done their experiments with very simple equipment. Faraday did the same. With only an old bottle and scrap timber, he built a static electricity generator. Through this he tested some assumptions related to electricity……….
