Abstract: A data-collecting play object. The play object includes a body manipulated by a player. A data-collecting unit is disposed in the interior of the body. The data-collecting unit includes an accelerometer unit measuring acceleration values along at least one translational degree of freedom, a gyroscope unit measuring rotation values about at least one rotational degree of freedom, and a processor in communication with the accelerometer unit and with the gyroscope unit. The processor obtains the acceleration values from the accelerometer unit and the rotation values from the gyroscope unit. The processor wirelessly transmits the acceleration and rotation values at discrete intervals. A power source supplies electrical power to the accelerometer unit, the gyroscope unit, and the processor. The play object being used in combination with an identification tag attached to a play accessory is also disclosed. A system and a method are also disclosed.

Abstract: A data-collecting play object. The play object includes a body manipulated by a player. A data-collecting unit is disposed in the interior of the body. The data-collecting unit includes an accelerometer unit measuring acceleration values along at least one translational degree of freedom, a gyroscope unit measuring rotation values about at least one rotational degree of freedom, and a processor in communication with the accelerometer unit and with the gyroscope unit. The processor obtains the acceleration values from the accelerometer unit and the rotation values from the gyroscope unit. The processor wirelessly transmits the acceleration and rotation values at discrete intervals. A power source supplies electrical power to the accelerometer unit, the gyroscope unit, and the processor. The play object being used in combination with an identification tag attached to a play accessory is also disclosed. A system and a method are also disclosed.

Abstract: Cryogenic electronics based upon semiconductive devices, superconductive devices, or a combination of the two present opportunities for a wide variety of novel, fast, and low power devices. However, such cryogenic electronics require cooling which is typically achieved through fluid refrigerants such as liquid nitrogen or liquid helium. Solid state refrigeration based upon adiabatic demagnetization in paramagnetic salts offers one alternative but requires that the solid state cooler and cryogenic electronic circuits be different physical elements. The inventors present solid state cooling for semiconductor materials including but not limited to silicon. Beneficially active electronic devices can be integrated monolithically with solid state semiconductor coolers exhibiting magnetic cooling within the whole substrate or predetermined regions of the substrate. Alternatively, active devices may be formed with semiconductor layers integral to them that exhibit magnetic cooling.

Abstract: Cryogenic electronics based upon semiconductive devices, superconductive devices, or a combination of the two present opportunities for a wide variety of novel, fast, and low power devices. However, such cryogenic electronics require cooling which is typically achieved through fluid refrigerants such as liquid nitrogen or liquid helium. Solid state refrigeration based upon adiabatic demagnetization in paramagnetic salts offers one alternative but requires that the solid state cooler and cryogenic electronic circuits be different physical elements. The inventors present solid state cooling for semiconductor materials including but not limited to silicon. Beneficially active electronic devices can be integrated monolithically with solid state semiconductor coolers exhibiting magnetic cooling within the whole substrate or predetermined regions of the substrate. Alternatively, active devices may be formed with semiconductor layers integral to them that exhibit magnetic cooling.