Thursday, March 25, 2010

David Webb and Vacuums

This week, we had a fun guest speaker, Mr David Webb!
He was very delightful and insightful and knew a lot!
He also had this really cool contraption that sucked air, causing a vacuum within its tank.

okay...so it didnt look like THIS thing, but it was still pretty cool looking :3
i learned something! :D

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