Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length Length_150mm Adjustable between 25 and 40

Adjustable between 25 and 40 dots per second

The system includes: rich activities software

iodine mordant

Ninety-five-piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry

Electric art electrolysis kit creates patterns through electrochemical reactions for 5 demonstrations of redox principles and surface chemistry

Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length Length_150mm Adjustable between 25 and 40Long focal double convex glass lens at 75mm diameter and 300mm focal length, the f 4 geometry pushing focal point well downrange for projection style image formation demos.