Abstract: A method of synchronising audio content arranged to be played by a second device with video content played by a first device, wherein the second device includes a camera, comprises: capturing at least a portion of the video content with the camera; performing image recognition on the captured video content to identify a set time point in the audio content; and commencing playing the audio content from a selected time point in the audio content corresponding to the set time point, such that the audio content is synchronous with the video content. A method of pre-preparing video content for use in such a synchronisation method is also described.

Abstract: A vehicle includes a propulsion unit configured to move the vehicle and to change a characteristic of the environment of the vehicle. The vehicle also includes a proximity sensor configured to detect the characteristic of the environment of the vehicle. The characteristic of the environment is changed by operation of the propulsion unit. The vehicle further includes obstacle detection circuitry configured to determine a presence of an obstacle in the vicinity of the vehicle based on a comparison between the detected characteristic of the environment and a reference value.

Abstract: The present disclosure provides an aircraft (10) for flying in a forward direction (F). The aircraft (10) comprises an aircraft body (20), and a wing comprising a first wing portion (30A) and a second wing portion (30B). The first wing portion (30A) and the second wing portion (30B) extend away from the aircraft body (20). The first wing portion (30A) and the second wing portion (30B) are configured to generate a first lift value during level flight of the aircraft (10) in the forward direction (F) when the first wing portion (30A) and the second wing portion (30B) are in an equilibrium position. Each of the first wing portion (30A) and the second wing portion (30B) is flexibly mounted relative to the aircraft body (20) such that when a lift force generated by the first wing portion (30A) changes from the first lift value to a second lift value, the first wing portion (30A) is deflected substantially vertically away from an equilibrium position.

Abstract: There is provided a vehicle (18) comprising a propulsion unit (34) configured to move the vehicle (18) and to change a characteristic of the environment of the vehicle (18). The vehicle (18) further comprises a proximity sensor (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31) configured to detect the characteristic of the environment of the vehicle. The characteristic of the environment is changed by operation of the propulsion unit (34). The vehicle (18) further comprises obstacle detection circuitry (32) configured to determine a presence of an obstacle in the vicinity of the vehicle based on a comparison between the detected characteristic of the environment and a reference value.