Multiple-collision accelerator assembly

Details Multiple-collision accelerator assembly Multiple-collision accelerator assembly

1991-08-22

1993-10-26

Apley, Richard J.

Education and demonstration

Science

Physics

434300, 446168, 446486, G09B 2308

Patent

active

052560716

ABSTRACT:
A device comprising several highly elastic objects is presented whose purpose is to demonstrate an unobvious consequence of fundamental laws of physics--the acceleration of an object to high speed by multiple collisions among a series of heavier objects moving at slower speed. The objects, each of different mass, are arrayed in close proximity in order of decreasing mass with their centers lying along a straight line. This arrangement of the assembly of objects is maintained by a constraining element which permits the assembly axis to be oriented in any desired direction and permits the assembly to be moved or manipulated as a unit in any desired way without destroying the arrangement of objects. In the preferred embodiment the elastic objects are polybutadiene balls (12), the constraining element is an interior guide-pin (10) fastened in the largest ball and extending radially therefrom, on which the remaining balls can slide freely because of diametrical holes formed in them. In use this multiple-collision accelerator assembly is suspended in vertical orientation, with the largest ball downward, by holding the tip-end of the guide-pin which extends beyond the littlest ball. The assembly is then dropped onto a solid surface (14), the striking of which produces a sharp impulse that is transmitted from the largest ball, through the assembly, causing the littlest ball to be projected to a height many times that from which the assembly was dropped.

REFERENCES:
patent: D216999 (1970-03-01), Kanbar
patent: D217912 (1970-06-01), Trippett
patent: 3002294 (1961-10-01), Jackson
patent: 3744472 (1973-07-01), O'Ryan
patent: 5046984 (1991-09-01), Cane

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