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.
9) Ponte Colossus, Italy â 500 ft (152 m) You will find this 350 m long bridge awe-inspiring and an inspiring spot for an energetic sport like bungee jumping. It will take you an average of almost 4.5 seconds for the first fall. You need a lot of nerve power to sustain the 100 km/hr vertical velocity of the free fall.
The 216m-high Bloukrans Bridge (about 40km east of Plettenberg Bay) spans a gorge over the river of the same name, and bungee jumpers will experience a drop of 170m.outh Africa offers visitors the ultimate thrill in the form of the highest commercial bridge bungee jump in the world at Bloukrans Bridge on the Garden Route in the Western Cape. Play video.