By his machines man can dive and remain under water like a shark can fly like a hawk in the air can see atoms like a gnat can see the system of the universe of Uriel, the angel of the sun can carry whatever loads a ton of coal can lift can knock down cities with his fist of gunpowder can recover the history of his race by the medals which the deluge, and every creature, civil or savage or brute, has involuntarily dropped of its existence and divine the future possibility of the planet and its inhabitants by his perception of laws of nature.