The invention relates to amusement attraction engineering and can be used
in teaching physics, chemistry, and biology to demonstrate the conversion
of chemical energy into electrical energy. The inventive attraction
comprises playing members (1) and (2) of a certain shape whose function
is fulfilled by different metals spaced not less than at 0.5 V in an
electrochemical series. The playing members (1) and (2) are coupled to
visual display means, for instance a microammeter (3). The playing
members (1) and (2) are not coupled directly to each other in a circuit.
One person (4) is or a group of persons (4, 5, 6) are coupled to the
circuit at the opposite side of the playing members (1) and (2) in order
to close the circuit loop, said persons being able to interact with the
playing members (1) and (2) and between each other by exposed portions of
their bodies, for instance by hands. When interaction with a moist medium
of skin takes place, there are potential-determining reactions in
different metals that stimulate the occurrence of the electromotive force
and the generation of circuit in the circuit, which visually, divertingly
and amusingly represents the conversion of chemical energy into
electrical energy. The microammeter (3) fixes the presence and value of
said current.