1. 

   1 month ago

   Interrupted hard turn A-2

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2. 

   8 months ago

   How I Made My Own Index Driver for Wheel & Pinion Cutting

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3. 

   4 months ago

   SIMPLE MACHINES: LEVER AND TYPES

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4. 

   4 months ago

   SIMPLE MACHINES: FIXED PULLEY, MOBILE PULLEY, HOISTS OR RIGIDS

   ElProfeJacob
5. 

   4 months ago

   machines: Definition, concepts applied force, load or resistance and efficiency or performance

   ElProfeJacob
6. 

   3 months ago

   NYA in Wartime: Mobilizing for Defense

   Archival Moments