Human Head Model, Frontal and Median Section Light & Optics_Spectroscopy providing a quick swap-in reference

providing a quick swap-in reference for general-purpose AC-circuit and timing-experiment work

5-inch compact and 6-inch long-format units

Graphite lattice kit whose atoms and connecting rods assemble into planar carbon sheets

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

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

Human Head Model, Frontal and Median Section Light & Optics_Spectroscopy providing a quick swap-in referenceFrontal and median head sections expose brain, cranial sinuses, oral cavity, and cervical spine across the same model for comprehensive head anatomy teaching.