Working Steam Engine Model with Piston and Slide Valve Stock Type_Stocked Miniature desktop torso with 12

Miniature desktop torso with 12 removable parts includes a dissectable head and brain for compact classroom anatomy and biology teaching

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

diffraction

Simultaneous AC and DC output on this low-voltage power supply

supporting small-feature eye anatomy teaching

Working Steam Engine Model with Piston and Slide Valve Stock Type_Stocked Miniature desktop torso with 12Cutaway working steam engine model with piston, slide valve, and link motion reversing mechanism, the flywheel light enough to drive by breath for hands on reciprocating engine study.