Tag: Jack

Nut-screw and worm jack

Combination of nut-screw and worm mechanisms gives the jack a high mechanical advantage. Inventor files for this video are available at: STEP files:
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Jack Horner: Shape-shifting dinosaurs

Where are the baby dinosaurs? In a spellbinding talk from TEDxVancouver paleontologist Jack Horner describes how slicing open fossil skulls revealed a shocking secret about some of our most beloved …
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