J.D. Leventhal

ディレクター

• The Automatic Riveter

  The Automatic Riveter

• How You See

  How You See

• Behind the Signs on Broadway

  Behind the Signs on Broadway

• Professor B. Flat

  Professor B. Flat

• Traveling Forts

  Traveling Forts

• Putting Volcanoes to Work

  Putting Volcanoes to Work

• The Submarine Mine-Layer

  The Submarine Mine-Layer

• The Rudiments of Flying

  The Rudiments of Flying

• Lightning

  Lightning

• If We Went to the Moon

  If We Went to the Moon

• Heres Your Eyesight

  Heres Your Eyesight

• Breathing

  Breathing

• An Engineering Problem

  An Engineering Problem

• A Submarine Destroyer

  A Submarine Destroyer

• Fiske Torpedo Plane

  Fiske Torpedo Plane

• The Gasoline Engine

  The Gasoline Engine

• The Torpedo, Hornet of the Sea

  The Torpedo, Hornet of the Sea

• Mechanical Operation of British Tanks

  Mechanical Operation of British Tanks

• The Aeroplane Machine Gun

  The Aeroplane Machine Gun

• Freak Patents: The Balloon R.R.

  Freak Patents: The Balloon R.R.

• The Panama Canal

  The Panama Canal