Abstract: The inertial exerciser and entertainment device includes a central axle on which is mounted pair of pendulums. Each pendulum includes an elongated pendulum rod, a spherical weight provided on one end of the pendulum rod, and an eyelet provided on the other end. The pendulum rods and the spherical weights of the exerciser are configured such that when the pendulums are mounted on the common axle, side by side, the spherical weights are aligned and are configured to oscillate and collide in the same plane.

Abstract: The inertial exerciser and entertainment device includes a central axle on which is mounted pair of pendulums. Each pendulum includes an elongated pendulum rod, a spherical weight provided on one end of the pendulum rod, and an eyelet provided on the other end. The pendulum rods and the spherical weights of the exerciser are configured such that when the pendulums are mounted on the common axle, side by side, the spherical weights are aligned and are configured to oscillate and collide in the same plane.

Abstract: The inertial exerciser and entertainment device includes a central axle on which is mounted pair of pendulums. Each pendulum includes an elongated pendulum rod, a spherical weight provided on one end of the pendulum rod, and an eyelet provided on the other end. The pendulum rods and the spherical weights of the exerciser are configured such that when the pendulums are mounted on the common axle, side by side, the spherical weights are aligned and are configured to oscillate and collide in the same plane.

Abstract: A nail clipper includes a pincer forming multiple opposed sections. A first opposed section includes a first jaw spaced from a second jaw of a second opposed section. The nail clipper also includes a transverse assembling pin mounted between the opposed sections of the pincer. At least one handle is provided. The at least one handle includes a short portion and a long portion. The short portion is mounted to the transverse assembling pin such that a fulcrum point of the handle on the transverse assembling pin remains at substantially a cross-sectional center of the transverse assembling pin when the at least one handle is rotated relative to the pincer.

Abstract: The inertial exerciser and entertainment device includes a central axle on which is mounted pair of pendulums. Each pendulum includes an elongated pendulum rod, a spherical weight provided on one end of the pendulum rod, and an eyelet provided on the other end. The pendulum rods and the spherical weights of the exerciser are configured such that when the pendulums are mounted on the common axle, side by side, the spherical weights are aligned and are configured to oscillate and collide in the same plane.

Abstract: A transmission system is provided for a tandem bicycle having a frame on which are mounted a front, steerable, ground engaging wheel, and a rear, driven, ground engaging wheel. The bicycle also includes front and rear pedal systems, each of which includes a shaft rotatably mounted in a hub carried by the frame, each shaft having axial ends to which pedal cranks are connected for rotating the shaft in response to pedal rotation of the cranks. The transmission system includes first apparatus for coupling the shaft of the front pedal system to the rear wheel so that pedal rotation of the cranks connected to the last mentioned shaft imparts rotation to the driven wheel. The system further includes second apparatus for coupling the shaft of the rear pedal system to the rear wheel so that pedal rotation of the cranks connected to the last mentioned shaft imparts rotation to the driven wheel.