Title rated 4.1 out of 5 stars, based on 5 ratings(5 ratings)
DVD, 2003
Current format, DVD, 2003, , Available now.
DVD, 2003
Current format, DVD, 2003, , Available now. Offered in 0 more formats
The inhabitants of Mammoth Island work together to retrieve a wedding ring that has fallen down a sink drain. They discover what a straw, a plunger, a vacuum and a jackhammer all have in common and the differences and similarities between air pressure (pneumatic machines) and liquid pressure (hydraulic machines).
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