Welcome to Engineering Update 49, in this week's episode: --The UKs newest UAV UK Ministry of Defence recently announced a Release to Service for their own UAV, the WatchKeeper WK450. -- Robots playing ping pong UHTTR-1 robotic arm plays one mean game of table tennis. --Toyota's personal mobility vehicle Toyota recently released the details of a fully enclosed, two-seater, three-wheeled fully electric, personal mobility vehicle that the company will officially debut in Geneva.