Abstract: An apparatus comprising: (a) a bladeless rotatable element with a smooth outer surface, said rotatable element connected to a drive mechanism; and (b) a dynamo powered by said drive mechanism so as to output an electric current.
Abstract: A system comprising: (a) a transmitter adapted to provide an audio signal output comprising an embedded data element imperceptible to a human being of normal auditory acuity when said audio signal output is played through speakers wherein said embedded data element is embedded using phase modulation; and (b) an audio receiver adapted to receive said audio signal output and extract said embedded data element and respond to at least a portion of the data in said embedded data element.
Abstract: The invention describes a propeller-less turbine for the conversion of linear flow energy to rotary power. The turbine is based on a plurality of hollow elements, with at least one element having a tapered helical structure. Inlet and outlet define a chamber through which air or water may flow, energy from the flow being delivered to the body of the turbine and thus allowing for highly efficient conversion of linear to rotary energy.
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