Crasy Dorfs

💥💥Learn how to make a table fan from used plastic bottle, one motor, battery and switch. Its very simple homemade table fan.💥💥 Its Physics working models for science exhibition. Thank you for watching to Crazy Dorfs !!!

💥💥Learn how to make an old cinema projector that is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. it requires one torch and one magnifying glass.💥💥 Its Physics working models for science exhibition Thank you for watching to crazy Dorfs !!!