A paddling method for a craft is provided, which is a method for driving a rotating ring to float and rotate by the dynamic force of water. The rotating ring comprises a rotating inner ring and a rotating outer ring, at least three connectors are connected between the rotating inner ring and the rotating outer ring, an external part of the connector is provided with a rotating blade, and the rotating blade is placed in water in a water-sealing container. The paddling method for the craft of the present invention has advantages of being novel in conception and design, good in rotating scenery effects, good in impression and the like.

The invention is Sinkable Toy Warships, in particular, remotely controlled toy boats that can shoot water, be shot at by other boats, retain water that hits them directly, continue to be operational after being hit, sink when a predetermined volume of water has been absorbed, remain near the surface where it can be located and can be recovered after being submerged with no ill-effects to the electric and electronic components on board.

The invention is remote-controlled water toy that has an outer shell that is a continuous and external surface, a plurality of apertures in the outer shell that allow water to infiltrate the outer shell, and an interior volume that collects and stores water that has infiltrated the outer shell. The remote-controlled water toy can shoot water, be shot at by other similar vehicles, retain water that hits them directly in the interior volume, continue to be operational after being hit, and sink or otherwise become deactivated when a predetermined volume of water has infiltrated the exterior shell.

A modular sensing device can include an inertial measurement unit to generate sensor data corresponding to user gestures performed by a user, a mode selector enabling the user to select a mode of the modular sensing device out of a plurality of modes, and one or more output devices to generate output based on the user gestures and the selected mode. The modular sensing device can further include a controller to implement a plurality of state machines. Each state machine can be associated with a corresponding user gesture by a sensor data signature. The state machine can execute a state transition when the sensor data matches the sensor data signature. The executed state transition can cause the controller to generate a corresponding output via the one or more output devices specific to the selected mode and based on the corresponding user gesture.

A modular sensing device can include an inertial measurement unit to generate sensor data corresponding to user gestures performed by a user, a mode selector enabling the user to select a mode of the modular sensing device out of a plurality of modes, and one or more output devices to generate output based on the user gestures and the selected mode. The modular sensing device can further include a controller to implement a plurality of state machines. Each state machine can be associated with a corresponding user gesture by a sensor data signature. The state machine can execute a state transition when the sensor data matches the sensor data signature. The executed state transition can cause the controller to generate a corresponding output via the one or more output devices specific to the selected mode and based on the corresponding user gesture.

A wearable device can be worn by a user, and can include one or more sensors to detect user gestures performed by the user. The wearable device can further include a wireless communication module to establish a communication link with a self-propelled device, and a controller that can generate control commands based on the user gestures. The control commands may be executable to accelerate and maneuver the self-propelled device. The controller may then transmit the control commands to the self-propelled device over the communication link for execution by the self-propelled device.

A wearable device can be worn by a user, and can include one or more sensors to detect user gestures performed by the user. The wearable device can further include a wireless communication module to establish a communication link with a self-propelled device, and a controller that can generate control commands based on the user gestures. The control commands may be executable to accelerate and maneuver the self-propelled device. The controller may then transmit the control commands to the self-propelled device over the communication link for execution by the self-propelled device.

A mechanized trolling device includes a flotation chamber, a power source and motor in a water-tight enclosed chamber, and a sheltered impeller. The device travels many times the distance that an angler can cast, and automatically shuts off after a set period of time. A fishing line attached to the device can be deployed so the angler can fish at the depth of the water where the device has travelled.

A mechanized trolling device includes a flotation chamber, a power source and motor in a water-tight enclosed chamber, and a sheltered impeller. The device travels many times the distance that an angler can cast, and automatically shuts off after a set period of time. A fishing line attached to the device can be deployed so the angler can fish at the depth of the water where the device has travelled.

A system for attaching a thermal battery to a flange of a power supply section of an underwater craft, such as a torpedo, comprising a fixing sleeve arranged around and fixed to the battery and provided with fixing lugs comprising holes for the passage of screws for attachment to the flange, wherein the sleeve is in an overall shape of a C, of which an intermediate part and ends of branches comprise the fixing lugs for fixing the fixing sleeve to the flange.