US$ 14.90
Larger-spark 100mm induction coil from a 6-12V DC input with adjustable vibrator and base-mounted suppression capacitors
sized for field measurements and outdoor physics investigations
Greatly enlarged inner ear model exposes bony and membranous labyrinth alongside a sectioned cochlea for vestibular and auditory anatomy teaching
running on 220/240V mains for laboratory experiment work
Fifty-pack of 3mm steel ball bearings
Extra Dense Flint Glass Prism, R=1.65 Prong_3 Larger-spark 100mm induction coil fromHeavy flint glass prism at refractive index 1. 65, the leaded body delivering pronounced spectral separation for comparing dispersion against crown and flint baselines.
US$ 14.90
US$ 28.00
US$ 55.00
US$ 65.00
US$ 70.00
US$ 70.00
US$ 70.00
US$ 17.90
US$ 90.00
US$ 98.00
US$ 50.00