Tyler Valdez portraying a simpler, a collector of herbs and medicinal plants, shows a bit …
A collection of rocks, minerals and shells.
Dean Howarth shows the students a skeleton of a shark’s jaw. The shark has the …
Tyler Valdez assists in the turning of the glass wheel to create a small electrical …
Dean Howarth gets some help from the audience in evacuating the air from a bell …
Dr. John Page (Dean Howarth) demonstrates a simple vacuum machine to a young group of …
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