Two Parallel Necks Multiple Adapter, 29/32 Socket and 29/32 Cone, Borosilicate Glass Subcategory_Sound and Resonance Millimeter-graduated 15cm Hooke's-Law scale on

Millimeter-graduated 15cm Hooke's-Law scale on a 30cm support rod

Test tube with side arm in borosilicate glass measures 125 x 16mm for gas collection

Used to verify R = rho*L/A by isolating wire material

and 3 rods for multi-configuration study

95A single-phase rheostat on a 300x56mm tube with cover-protected constantan winding and 4mm safety socket terminals

Two Parallel Necks Multiple Adapter, 29/32 Socket and 29/32 Cone, Borosilicate Glass Subcategory_Sound and Resonance Millimeter-graduated 15cm Hooke's-Law scale onMultiple adapter in borosilicate glass features two parallel necks with 29 32 sockets for connecting multiple components in chemistry apparatus.