3-Step Differential Pulley on 8" Rod Botany_Botany Charts & Models For 220V European mains

For 220V European mains

Clear acrylic rack holds up to 60 60mm petri dishes upright for organized incubation

Seventeen-and-a-half-inch wooden simple-lever apparatus with an adjustable fulcrum on an 8

Pairs a 10° apex with 85° x 85° base angles on a glass wedge prism

calculating relative humidity from the temperature difference between the two readings for meteorology coursework

3-Step Differential Pulley on 8" Rod Botany_Botany Charts & Models For 220V European mainsThree step differential pulley with a 0. 5 inch mounting rod and 3 16 inch step gaps on an 8 inch assembly, demonstrating compound mechanical advantage through progressive diameter stepped wheels.