Protection Against Nature Through Technology: Detect Smaller Earthquakes with the Earthquake Indicator Machine!

A steady pendulum is connected to the positive signs of a 9-volt battery, and simultaneously a buzzer or an alarm is connected to the negative signs of the battery. The pendulum has a special arrangement that if it displaces from its steady position, then it will touch the wire around it, and the circuit process will then complete. The same process is repeated when an earthquake occurs. This innovation will indicate an earthquake and will safeguard the future.

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