An internal combustion engine including a torque converter on a crankshaft, and a single oil passage provided in the crankshaft for supplying, in common, both a working oil for the torque converter and a lubricating oil for the engine. Each of said multiple rotor vanes is substantially box-shaped with four solid sides and a front and rear side disposed in a radial vertical plane. If a second bet is received within a predetermined period after the first bet is received, then the processor recalculates betting odds on the particular event based upon both the first and second bets. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer.