Premium Oxygen (O) Spectrum Tube, 26cm Subcategory_Electromagnetism producing oxygen's characteristic emission lines

producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels

supporting three-rope compound arrangements for advanced mechanical-advantage investigations

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

Seventy-eight-piece molecular model set with 45 atoms and 33 bonds for building basic organic and inorganic structures

Student kit for constructing a working DC motor from component parts

Premium Oxygen (O) Spectrum Tube, 26cm Subcategory_Electromagnetism producing oxygen's characteristic emission linesResearch grade oxygen spectrum tube at 26cm with a 10cm central capillary, producing oxygen's characteristic emission lines for spectroscope viewing of atomic emission and quantum energy levels.