String, Pebbles, and Gravity

  • Mark Bell
  • James Floyd Kelly


The Archeology Storyline: Day 3: Inside King Ixtua’s Tomb, 8:13 AM Evan looked into the tunnel. The ExploroBot was about four feet away but still moving toward the tunnel exit. A few minutes earlier the ExploroBot had reached the trigger; some unusual sounds were heard behind the tomb door and then a loud BANG! While Evan listened for his bot to turn around and return, his uncle and a few other team members began pushing on the large stone door.


Pressure Plate Tunnel Exit History Teacher Shaky Ground Round Circle 
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Copyright information

©  Mark Bell and James Floyd Kelly 2017

Authors and Affiliations

  • Mark Bell
    • 1
  • James Floyd Kelly
    • 2
  1. 1.NorthridgeUSA
  2. 2.SmyrnaUSA

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