Tirrill Burner with Octagonal Base, Natural Gas Physics_Heat & Thermodynamics Hand-driven Newton's color disc that

Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing

this three-piece acrylic equilateral prism set supports optics experiments in dispersion and wavelength separation

Offering four-decade rotary selection from 0 to 11

Heavy-gauge steel inclined plane with built-in vertical

Battery-powered iron-clad electromagnet that lifts up to 100 pounds from its end hooks on four C cells

Tirrill Burner with Octagonal Base, Natural Gas Physics_Heat & Thermodynamics Hand-driven Newton's color disc thatTirrill burner on a stable octagonal base adds air, flame, and gas control on natural gas for high temperature chemistry heating applications.