Aluminum Leslie's Cube, 10 cm Sides Meters_Electrical Six ovule orientations — orthotropous

Six ovule orientations — orthotropous

and major vessels of the human heart

Class-pack of economy handheld spectroscopes fitted with a rotating slit cap and internal diffraction grating for identifying constituent wavelengths in visible light sources

this ball bearing roller coaster kit demonstrates potential and kinetic energy conversion plus forces and motion concepts

Metal spouting cylinder with multiple outlet holes at different heights

Aluminum Leslie's Cube, 10 cm Sides Meters_Electrical Six ovule orientations — orthotropousDemonstrates how surface finish affects thermal radiation, comparing the blackened, roughened, varnished, and polished faces of a water heated metal cube with an infrared sensor.