Who knew that the Indians living in the Pac NW had seismographs, and were recording Richter levels, in 1700! Wow!
Interesting because they didn’t even have the wheel!
it was very similar to the Flintstones seismographs...requiring a beaver with a stylus (made of an eagle feather inked with an Indian paint pot) deftly tied to the beavers tail with wet buckskin so that when it dries it tightens.....the graph itself is a buffalo skin looped through cedar log rollers and propelled by an otter in the inside of the loop who has a fish dandling in front of him to get him to run, hence power the chart. The beavers belly is to the ground and when seismic activity occurs it is translated to his tail which moves more or less determined by the intensity of the quake....