Shows that objects fall at the same rate of acceleration in a vacuum under gravity, regardless of their relative weights and sizes. It comprises a thick-walled glass tube fitted with rubber bungs at each end to seal the tube; one bung has a glass tube of about 8 mm diameter fixed through a hole in it, with rubber tubing and a clip for connecting it to a vacuum pump. Glass tube size approx. 500 x 16 mm (length x diameter), with a pinch clip.

We are manufacturers and suppliers of the Guinea and Feather Apparatus, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.