Human Head Model, Frontal and Median Section Light & Optics_Spectroscopy sized for finer-gauge resistance demonstrations

sized for finer-gauge resistance demonstrations and small-scale heating elements where the heavier gauges would over-deliver current

its sectioned carburetor and fuel supply exposing the compression-ignition cycle to a hand-cranked turnover

5 inch specific gravity cylinder with a top hook

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

Human Head Model, Frontal and Median Section Light & Optics_Spectroscopy sized for finer-gauge resistance demonstrationsFrontal and median head sections expose brain, cranial sinuses, oral cavity, and cervical spine across the same model for comprehensive head anatomy teaching.