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.
321 meters: Royal Gorge Bridge, Colorado, United States. Like skydiving, only scarier. The Colorado-based bridge was the highest suspension bridge in the world for nearly 75 years, until 2001 when the Liuguanghe Bridge in China surpassed it. The Royal Gorge Bridge is by far the highest bungee jumping spot.