Pendulum principle demonstration apparatus

Details Pendulum principle demonstration apparatus Pendulum principle demonstration apparatus

1990-11-29

1992-09-08

Apley, Richard J.

Education and demonstration

Science

Physics

434300, G09B 2308

Patent

active

051453789

ABSTRACT:
A base supports a vertical pivot arm, one end of which supports a pivotal rotation means for a rotation support housing with a plurality of radial connector sockets. One of several pendulum arms can be fitted into each of the radial connector sockets, the pendulum arms supporting a pendulous mass on each pendulum arm. One such pendulum arm is articulated into two portions, each portion with a plurality of additional pendulum arms attached thereto. The apparatus consequently demonstrates the physical principles of not just a simple pendulum, but those of a variety of compound pendulum configurations.

REFERENCES:
patent: 1481075 (1924-01-01), Strouse
patent: 1869951 (1932-08-01), Worthington
patent: 3184884 (1965-05-01), Petrucelli
patent: 3339292 (1967-09-01), Ruchlis
patent: 3478466 (1968-12-01), Conner
patent: 3533185 (1969-01-01), Kanbar
patent: 4011674 (1977-03-01), Jacobson
patent: 4538802 (1985-09-01), Van John
patent: 4878296 (1989-11-01), Londino
Stansi Scientific Division Catalog, 1969, p. 121.
Ealing 1969 Science Teaching Catalog, p. 63.
Romer, "A Double Pendulum `Art Machine`", American Journal of Physics, vol. 38, No. 9, Sep. 1970, pp. 1116-1121.

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