Translation 1 Rockets have found application for the exploration of the universe. 2 It has taken many a pick and shovel to prove to the world that the history of Greece went back long before the year 776 B.C. 3 In August 1999 the Indian Draft Nuclear Doctrine called for deployment of a triad of “aircraft, mobile land-missiles and sea-based assets ” to deliver nuclear weapons. 4 Because of the circuitous and directional flow of waterways, railways often have an energy advantage over barges . 5 Where a railway crosses a navigable waterway, and it is impossible to lift the line high enough for vellels to pass underneath without interception, a bridge must be built which is capable of being opened in order to allow the river or canal traffic to pass.