Model, Physical Eye, can be used to demonstrate the optical functions of the human eye, Half eyeball with adjustable iris diaphragm, lens holder and 2 convex lenses (f = 65 mm and 80mm), on a rod, Dimensions: 49 x 5.5 x 18 cm, Weight: 2.45 kg
Sun, Earth, Moon Orbital Model, Multiple moving axis to demonstrate daylight, night, seasons and phases of moon, Requires two AA batteries, Light bulb inside sun to demonstrate sun light on moon & earth, Base has the months of the year along with the season
Mid-Atlantic Ridge Model, shows the S-shaped course in 3D of the volcanic mountain range produced by tectonic shifts in the Atlantic Ocean, Size at the equator: 1:320.000.000, Material: PVC, Weight: 6.5 kg
List View
Easy View (new)
