US$ 362.00
Flame-heated thermal-expansion demonstrator with a 19mm metal ball dropping through a matched ring when cool
5% accuracy
sized to extend RC time-constants where charging and discharging curves stay watchable in real time
Amoeba model demonstrates pseudopodia
and pyramidal geometries
Lens Cleaning Tissue, 25-Sheet ag sci Flame-heated thermal-expansion demonstrator with aBuilt for optical surfaces, this 25 sheet lens cleaning tissue pack wipes microscope oculars, objectives, eyeglasses, and camera lenses without scratching.
US$ 362.00
US$ 35.00
US$ 351.00
US$ 48.99
US$ 18.00
US$ 40.00
US$ 370.00
US$ 40.32
US$ 30.00