Free Fall Tube measuring-tools-accessories nature of many familiar food

nature of many familiar food products

and one large inner left lower pocket

Inside large lower patch pocket (when not in use

delrin (plastic)

Enjoy hours of educational fun while learning about electronics

Free Fall Tube measuring-tools-accessories nature of many familiar foodA very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2. 25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather. A very ecconomical