Abstract: The invention is that of a lacrosse ball collection apparatus fabricated from materials such as plastics, metals and fabrics. The apparatus comprises a fabric which when in its open position forms a substantially triangular horizontal surface capable of fitting inside a lacrosse goal. When lacrosse balls are shot into the goal, they collect on the fabric. The apparatus is foldable at a front joint and comprises a spout located behind the front joint and in close proximity thereto, such that the apparatus may be used to carry the balls to a collection receptacle, where they may be poured out of the spout into the receptacle for reuse. The apparatus is further foldable at two side joints such that an apical joint is foldable toward the front joint and two front member segments are foldable inward to render the apparatus in a compact, closed position suitable for storage in small spaces.

Abstract: The invention is that of a lacrosse ball collection apparatus fabricated from materials such as plastics, metals and fabrics. The apparatus comprises a fabric which when in its open position forms a substantially triangular horizontal surface capable of fitting inside a lacrosse goal. When lacrosse balls are shot into the goal, they collect on the fabric. The apparatus is foldable at a front joint and comprises a spout located behind the front joint and in close proximity thereto, such that the apparatus may be used to carry the balls to a collection receptacle, where they may be poured out of the spout into the receptacle for reuse. The apparatus is further foldable at two side joints such that an apical joint is foldable toward the front joint and two front member segments are foldable inward to render the apparatus in a compact, closed position suitable for storage in small spaces.

Abstract: For testing the behavior and monitoring the health of things, a novel, simple, low cost, highly sensitive, light weight, easy to install, flexibly wired, sophisticated accelerometer senses the motion of educational structural models that demonstrate eneraction—how the world and sensors work. A modified electret microphone with a mass adhesively attached to its diaphragm is embedded in a hard rubber housing, insulating it against environmental noise and temperature changes. Residual stresses in the housing, which plugs onto and grips a post protruding from the test object, ensures intimate interface surface contact and faithful transmission of motion. Containing an internal isolation amplifier, and operating over two ordinary wires, the sensor embodies popular, ICP (integrated-circuit-piezoelectric) technology. Standard telephone cable output connectors mate with educational, data-acquisition accessories for computers.

Abstract: Involving mysterious gravity and mystical energy, an adjustable, instrumented, structural model, incorporating an object suspended from a frame in various ways with flexible line, freely swings, falls, bounces, and vibrates when manually disturbed. Through transfers of energy, visual sensors resembling flexible lollipops both structurally sense and suppress motion, creating puzzling mysteries. Sensors don't always sense, an elastically suspended object doesn't bounce, and motion doesn't change as expected. Adding side weights doesn't change the coasting rate of a swing, confirming Newton's famous law of motion. Exhibiting the radiant, vibrant, communicant nature and behavior of energetically interacting people and things, these experiments sensibly demonstrate how forces of nature and man involved in transfers of energy animate the world, by moving objects, powering events, and sensing information.