A dart game apparatus 100 is provided with: a dart board in which a dart can stick and a plurality of segments are demarcated; a first detecting part 100 that detects a position of a point where the dart stuck in the dart board; a second detecting part 102 that detects a segment of the point where the dart stuck from the plurality of segments; a correcting part 104 that corrects the position detected by the first detecting part 100 based on the segment detected by the second detecting part 102 if a segment corresponding to the position detected by the first detecting part 100 is different from the segment detected by the second detecting part 102; and an outputting part 106 that output the position detecting by the first detecting part 100 or position corrected by the correcting part 104.

A dart game apparatus 100 is provided with: a dart board in which a dart can stick and a plurality of segments are demarcated; a first detecting part 100 that detects a position of a point where the dart stuck in the dart board; a second detecting part 102 that detects a segment of the point where the dart stuck from the plurality of segments; a correcting part 104 that corrects the position detected by the first detecting part 100 based on the segment detected by the second detecting part 102 if a segment corresponding to the position detected by the first detecting part 100 is different from the segment detected by the second detecting part 102; and an outputting part 106 that output the position detecting by the first detecting part 100 or position corrected by the correcting part 104.

Apparatus and methods for removing leakage from a qubit. In one aspect, an apparatus includes one or more qubits, wherein each qubit facilitates occupation of at least one of a plurality of qubit levels, the qubit levels including two computational levels and one or more non-computational levels that are each higher than the computational levels, wherein the qubit facilitates transitions between qubit levels associated with a corresponding transition frequency; a cavity, wherein the cavity defines a cavity frequency; one or more couplers coupling each qubit to the cavity; one or more couplers coupling the cavity to an environment external to the one or more qubits and the cavity; a frequency controller that controls the frequency of each qubit such that, for each qubit, the frequency of the qubit is adjusted relative to the cavity frequency such that a population of a non-computational level is transferred to the cavity.

Apparatus and methods for removing leakage from a qubit. In one aspect, an apparatus includes one or more qubits, wherein each qubit facilitates occupation of at least one of a plurality of qubit levels, the qubit levels including two computational levels and one or more non-computational levels that are each higher than the computational levels, wherein the qubit facilitates transitions between qubit levels associated with a corresponding transition frequency; a cavity, wherein the cavity defines a cavity frequency; one or more couplers coupling each qubit to the cavity; one or more couplers coupling the cavity to an environment external to the one or more qubits and the cavity; a frequency controller that controls the frequency of each qubit such that, for each qubit, the frequency of the qubit is adjusted relative to the cavity frequency such that a population of a non-computational level is transferred to the cavity.

A fluid detection and reaction apparatus that physically responds to fluid contact. An open-ended chamber with a hinged cover holds a compressed springy material. The cover/lid is subjected to pressure by the compressed springy material to open the chamber end. A latch is formed between the chamber cover and the rim of the chamber end to generate a holding force that keeps the cover in place. The latch is formed by a water-reactive material that is adapted to will fail or sever under stress when wet. When water contacts the water-reactive material, the material tears, allowing the cover to open the chamber and release the springy material.

Apparatus and methods for removing leakage from a qubit. In one aspect, an apparatus includes one or more qubits, wherein each qubit facilitates occupation of at least one of a plurality of qubit levels, the qubit levels including two computational levels and one or more non-computational levels that are each higher than the computational levels, wherein the qubit facilitates transitions between qubit levels associated with a corresponding transition frequency; a cavity, wherein the cavity defines a cavity frequency; one or more couplers coupling each qubit to the cavity; one or more couplers coupling the cavity to an environment external to the one or more qubits and the cavity; a frequency controller that controls the frequency of each qubit such that, for each qubit, the frequency of the qubit is adjusted relative to the cavity frequency such that a population of a non-computational level is transferred to the cavity.

Apparatus and methods for removing leakage from a qubit. In one aspect, an apparatus includes one or more qubits, wherein each qubit facilitates occupation of at least one of a plurality of qubit levels, the qubit levels including two computational levels and one or more non-computational levels that are each higher than the computational levels, wherein the qubit facilitates transitions between qubit levels associated with a corresponding transition frequency; a cavity, wherein the cavity defines a cavity frequency; one or more couplers coupling each qubit to the cavity; one or more couplers coupling the cavity to an environment external to the one or more qubits and the cavity; a frequency controller that controls the frequency of each qubit such that, for each qubit, the frequency of the qubit is adjusted relative to the cavity frequency such that a population of a non-computational level is transferred to the cavity.

A target device for use in training armed personnel is described including: a base portion which includes locomotion means for propelling the target around in a training area; a humanoid target is mounted in association with the base portion; the humanoid target adopts a normally upright position and is controllable to move to adopt a range of rotational positions away from the normally upright position in both of a forwards direction and a backwards direction.

A target device for use in training armed personnel is described including: a base portion which includes locomotion means for propelling the target around in a training area; a humanoid target is mounted in association with the base portion; the humanoid target adopts a normally upright position and is controllable to move to adopt a range of rotational positions away from the normally upright position in both of a forwards direction and a backwards direction.

A dart game apparatus 100 is provided with: a dart board in which a dart can stick and a plurality of segments are demarcated; a first detecting part 100 that detects a position of a point where the dart stuck in the dart board; a second detecting part 102 that detects a segment of the point where the dart stuck from the plurality of segments; a correcting part 104 that corrects the position detected by the first detecting part 100 based on the segment detected by the second detecting part 102 if a segment corresponding to the position detected by the first detecting part 100 is different from the segment detected by the second detecting part 102; and an outputting part 106 that output the position detecting by the first detecting part 100 or position corrected by the correcting part 104.