18. scuba diving attire of the future.With such innovative diving outfit, will not too hard to a diver diving into the river Seine in order to find out what evidence the critical service break.19. Skyscraper would be the future of humanity.The narrow land East-should the skyscraper would be the optimum choice for Americans and residents of France.20. The torpedo would be catastrophic in the future army.The old painter anticipated, if not torpedo, well-prepared research would be catastrophic in the future army.21. the rescue hero aircraft.The ancients seem somewhat "illusions" when given that, in the future if the plane crash and a pilot-cum engineers can use the hand do not help the plane landed safely.22. "surgery" for balloons.The French anticipated that, in future, Shenandoah-the famous balloon will damage during landing, and forced the engineers to "surgically" to assemble for this airship, the "new" nose.
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