music videos, movies, history videos, TV shows, adventure videos
Login / Register

Mechanical Inventions

  • 43:48 Lockheed SR-71 Blackbird

    Lockheed SR-71 Blackbird

    by Bob Added 346 Views / 0 Likes

    ©National Geographic 2013 The Lockheed SR-71 "Blackbird" is an advanced, long-range, Mach 3+ strategic reconnaissance aircraft. It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk

  • Roman Ball Bearings

    Roman Ball Bearings

    by Bob Added 846 Views / 0 Likes

    Leonardo da Vinci has been credited with the discovery of the principle behind the mechanics of ball bearings.but ball bearings were found on the Roman Nemi ships constructed in about 40 A.D. A wagon was found in Denmark that was older than the Roman ball

  • 45:56 Popular Guns


    by Bob Added 1,005 Views / 0 Likes

    The direct ancestor of the firearm is the fire-lance, a gunpowder-filled tube attached to the end of a spear and used as a flamethrower; shrapnel was sometimes placed in the barrel so that it would fly out together with the flames. The earliest depiction

  • Popular Hero's Steam Turbine

    Hero's Steam Turbine

    by Bob Added 1,112 Views / 0 Likes

    Hero (c. 10–70 AD) was an ancient Greek mathematician and engineer who lived in Alexandria, Egypt. He is considered the greatest experimenter of antiquity and his work is representative of the ancient Greek scientific tradition.Hero published a well