2-Speed Ticker Timer Kit Item Type_Dissection Pins letting students wire the panel

letting students wire the panel directly to each load and watch how light powers different output devices

and horseshoe magnet that swap by hand

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

this ray box gives students a controllable light source for reflection

Designed to project narrow beams through interchangeable slit plates

2-Speed Ticker Timer Kit Item Type_Dissection Pins letting students wire the panelTwo speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs, shipped with 100 discs and a tape roll in a clamping plate ready case.