Premium Oxygen (O) Spectrum Tube, 26cm Subcategory_Electromagnetism supporting three-rope compound arrangements for

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

Beech wood test tube rack accommodates 13 tubes up to 25mm diameter in a 10

and gas control on natural gas for high-temperature chemistry heating applications

Premium Oxygen (O) Spectrum Tube, 26cm Subcategory_Electromagnetism supporting three-rope compound arrangements forResearch 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.