Compound Pulley System
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4:1 Mechanical Advantage converted to a 12:1
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Comment fonctionne un système de poulies composées
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Tech Tip: Easy conversion of a 3:1 to a 5:1 MA system
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Why Snatch Blocks are AWESOME (How Pulleys Work) - Smarter Every Day 228
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Vintage Pulley System Restoration.
13:08
Making a Block and Tackle Wooden Pulley System
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Feira de Ciências - Multiplicador de Força - Sistema de Polias Móveis - Talha Exponencial
9:36