Because he is trying to have patience and creativity. Should be a good example of youth. He also produced the phonograph, movie projector bulb. And movie cameras
He has attempted. With patience and creativity should be a good example of youth. He also produced a chest tube sound power Projectors and movie cameras
because he is trying to have the patience and creative should be used to be a good example of youth he also produced a phonograph cartridge electric movie and cinema camera