Basic 1m Optical Bench Rod Size_23.6" Designed to electrolyze water into

Designed to electrolyze water into separately collected hydrogen and oxygen

6oz each in a 4-pack for chemistry-themed home entertaining and science enthusiast gifting

and 4-pole armature configurations on the same motor frame by swapping interchangeable enameled-copper armatures past a permanent bar magnet on a disc commutator

sized for ripple tank and bulb-driven physics demonstrations

Basic 1m Optical Bench Rod Size_23.6" Designed to electrolyze water intoSquare section aluminum tube 1 meter long with side graduations and four sliding riders, providing a more rigid mounting platform than a meter rule for lens and mirror investigations.