US$ 70.00
Six 10 x 10cm unmounted plastic filter squares - red
this natural gas Bunsen burner mounts on an extended anti-tip cast-iron base
configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations
Millimeter-graduated 15cm Hooke's-Law scale on a 30cm support rod
Alnico Horseshoe Magnet, 50 x 12 x 15mm Material_Zinc Six 10 x 10cm unmountedAluminum nickel cobalt alloy 50 x 12 x 15mm horseshoe magnet with included keeper bar, the Alnico composition resisting demagnetization for repeatable field mapping experiments.
US$ 70.00
US$ 14.90
US$ 80.00
US$ 17.90
US$ 80.00
US$ 80.00
US$ 19.90
US$ 14.90
US$ 80.00
US$ 30.00
US$ 88.00