Week 31 Inventions and Inventor

The inventions are the Lightning Rod, the Glass Harmonica, and the Swivel Chair.  The inventor is Benjamin Franklin.

The Lightning Rod is a metal rod placed on top of a building to protect it from lightning.  It helped change history because a lot of buildings were not damaged by the lightning because of the rod.

The Glass Harmonica is a musical instrument constructed by mounting glass bowls on a spindle.  Because it required no tuning, people could own a Glass Harmonica without knowing how to tune it.

The Swivel Chair is a chair that spins around.  It helped change history because if one’s desk is in a tight space one can turn around easily and continue working.

    Benjamin Franklin invented the Lightning Rod, the Bifocals, and the Glass Harmonica and many other things.  He helped change history because without him we would not have all these wonderful inventions.

So, the Lightning Rod, the Glass Harmonica, and the Swivel Chair are inventions that have helped change history.  An inventor that has helped change history is Benjamin Franklin.   


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