[Redbook7:170][19900727:2338]{[Spinning Discs and Rings]}[27th July 1990]
19900727.2338
*See N[ew] S[cientist] 19900728, No. 1727: 37# ‘Flight of the Frisbee’ by MacĂ© Schuurmans,** re the aerodynamic*** properties of spinning discs and rings (Aerobic rings).
*NB
**[? (ms unclear)]
***& gyroscopic <901111>
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