Alessandro Volta's theory of contact tension considered that the emf, which drives the electric current through a circuit containing a voltaic cell, occurs at the contact between the two metals. Volta did not consider the electrolyte, which was typically brine in his experiments, to be significant.
Victoria Falls Bridge is the location for a 111 meters (364 ft) bungee jump. The Victoria Falls Bridge crosses the Zambezi River just below the Victoria Falls. The bungee jump operates off the Victoria Falls Bridge and has a 100% safety record. Over 50,000 people have bungee jumped from this location.
Rangers generally do not employ HALO/HAHO insertions; that's more an SF bag. The Rangers are a raid force, and when they do airborne insertions it's a conventional static-line jump. The standard jump height is 1,250 feet at an airspeed of 120 knots. From that height it takes about 45-60 seconds to get to the ground. Hanging suspended in the air for that amount of time, making yourself a nice easy target to enemy riflemen on the ground, is obviously not desirable in a combat-jump situation.