Abstract: A system is described to facilitate breathing management. The system includes a plurality of wearable sensors, and one or more processors to access a breathing pattern of a wearer of the plurality of wearable sensors based on at least a portion of data from one or more of the plurality of sensors, determine a body movement of the wearer based on at least a portion of the data from one or more of the plurality of sensors, access a heart rate of the wearer based on at least a portion of the data from one or more of the plurality of sensors, and identify a recovery time for the wearer based on the breathing pattern, the body movement, and the heart rate.

Abstract: A method is described to facilitate breathing management. The method includes receiving sensory data from one or more wearable devices, recording a breathing pattern of a wearer of the one or more wearable devices based on data received from the sensor array, calculating a body movement of the wearer based on the data received from the sensor array and correlating a wearer breathing pattern with the wearer body movement and heart rate.

Abstract: Eyewear is provided having a frame that can releasably engage a lens. The frame can have an engagement mechanism that includes an active restraint member and a passive restraint member. The active restraint member can have a first component and a second component that are operatively coupled together such that the first and second components rotate together between open and closed positions. The second component can also be configured to slide relative to the first component to engage a portion the frame when the first and second components are in the closed position to maintain the lens fitted against the frame.

Abstract: Eyewear is provided having a frame that can releasably engage a lens. The frame can have an engagement mechanism that includes an active restraint member and a passive restraint member. The active restraint member can have a first component and a second component that are operatively coupled together such that the first and second components rotate together between open and closed positions. The second component can also be configured to slide relative to the first component to engage a portion the frame when the first and second components are in the closed position to maintain the lens fitted against the frame.

Abstract: A mechanism for preventing the chopping by the firing bolt of a paintball stuck or only partially inserted into the gun barrel. The bolt comprises an axial channel admitting compressed gas through a radial intake port in the proximal section of the bolt and leading the gas through a elbow-zone and an axial portion to a discharge port at the leading edge of the bolt. A sleeve slidingly engaged over the bolt as a radial aperture which is maintained in line with the intake port by a compressible coil spring, and has a leading portion extending ahead of the bolt. When the firing mechanism translates the bolt and sleeve to place the intake port and aperture in line with a gas-supplying outlet, any obstruction in the gun barrel upon being contacted by the leading edge of the sleeve, causes the sleeve to resiliently slide backward. The misalignment of the aperture and intake port prevents gas from expanding through the bolt channel and into the gun barrel.

Abstract: A rotatable hair brush includes a core with a plurality of series of holes, each series displaced in an annular direction from the other series. Bristles are disposed in the holes. Dividers are disposed on the core between successive series of bristles. A support member holds the dividers. Detents on the support member, and on an end cap at the other end, and matching detents on the core retain the core fixedly relative to the dividers. A handle extending from the other end of the core and the dividers holds a battery and a motor for rotating the core and the dividers. The end cap and the portion of the handle adjacent the end cap are shaped to provide a smooth continuous surface (preferably concave) for preventing a user's hair from becoming entangled during the brush operation. An end cap covering the support member has a smooth continuous surface to prevent the user's hair from becoming entangled during the brush operation.