Solar Furnace with 30cm Parabolic Dish Mechanics_Kinematics Four-metal 32mm density cube set

Four-metal 32mm density cube set with hooks in brass

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

this Wimshurst generator builds a visible high-voltage spark

Converts flowing-water kinetic energy into electricity through a mini water turbine coupled to a dynamo

Hand-painted dicot root transverse section model exposes epidermis

Solar Furnace with 30cm Parabolic Dish Mechanics_Kinematics Four-metal 32mm density cube setFocuses sunlight through a 30cm parabolic reflector onto a black copper target cup, converting solar radiation to measurable thermal energy on an 18 inch tall stand.