Garage Physics Trigonometry Exploration Puzzle Kit Glassware_Crow Receivers Onion epidermal cell model exposes

Onion epidermal cell model exposes the single-cell-thick tissue layer with rectangular cell walls

providing a fixed sighting reference for telescope and spectrometer alignment on the optical bench

deflecting visibly in the presence of a charged object to reveal both charge presence and polarity

this translucent LDPE wash bottle handles rinse and dispensing work at the bench

Sliding-window gold-leaf electroscope with anodized aluminum walls and an internal scale

Garage Physics Trigonometry Exploration Puzzle Kit Glassware_Crow Receivers Onion epidermal cell model exposesTrigonometry puzzle kit in wooden blocks demonstrating sine, cosine, tangent, cotangent, secant, cosecant, special triangles, and radians through tactile manipulation of each function.