- Were you looking for the furniture?
The Seismograph, also known as in Mission 8, an "Earthquake Tracker". This invention was made by Gary during the events of the mission to detect seismic activity from earthquakes that were later found out to be caused by Herbert P. Bear.
- It has only appeared in PSA Mission 8: Mysterious Tremors until it was eventually destroyed along with all of the PSA during the Popcorn Explosion.
- Seismographs are similarly, also used in real life usually to detect an oncoming earthquake, tsunami or hurricane. They can usually tell how powerful one may be.
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