Alnico U-Shape Magnet, 50 x 10 x 9mm Pack Size_Single Two-speed ticker timer kit printing

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

this holder keeps light shaping consistent across diffraction

and lead with densities from 2

Designed to electrolyze water into separately collected hydrogen and oxygen

where colored liquid in a U-shaped section shifts measurably as air blown through a constricted glass tube creates pressure differences

Alnico U-Shape Magnet, 50 x 10 x 9mm Pack Size_Single Two-speed ticker timer kit printingUsed to demonstrate field concentration across a small pole gap, this 50 x 10 x 9mm Alnico U shape carries an 18mm gap and ships with a keeper for storage between investigations.