| 摘要 |
An apparatus for teaching concepts concerning equilibrium, symmetry of energy flow and spherical motion including a centrally located octagear with eight engaging bevel gears, each having a central axis at a 70° angle relative to its adjacent gears. Each gear has a central shaft extending outwardly from the octagear, with the shafts having identical lengths. Reciprocating motion delivered to a crank mechanism is translated into rotary motion of the shaft, this rotary motion being transmitted to the gear at the end of the shaft. Connecting the crank mechanisms of each shaft are a plurality of beams with each beam spanning the space between two crank mechanisms. Each beam is capable of flexing between a first curved position and a second curved position resulting in a change in the span length of the beam and generating reciprocatory motion transmitted to the crank mechanisms. A cube-shaped frame is also provided.
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