Interaction and relativity cart

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1976-09-28

1978-01-17

Skogquist, Harland S.

35 19A, 46236, G09B 2308, G09B 2318

Patent

active

040683923

ABSTRACT:
A vehicle for use as an educational toy to demonstrate elastic interaction and magnetic attraction and repulsion includes a vehicle body and wheels for movably supporting the body. A magnet is supported on the body at one end thereof and an elastic member is supported on the body at the opposite end thereof.

REFERENCES:
patent: 518326 (1894-04-01), McArdle
patent: 1826180 (1931-10-01), Klopsteg
patent: 2577120 (1951-12-01), Franz
patent: 3299535 (1967-01-01), Stull
patent: 3711991 (1973-01-01), Orfei
patent: 3811218 (1974-05-01), Salmon
Welch Laboratory Apparatus Catalog, Oct. 1965, pp. 63, 83, 170.
Ealing 1969 Science Teaching Catalog, pp. 25, 28, 29, 30, 31, 33, 38.

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