Abstract: A virtual camera placement system is provided which includes a user input device configured to receive user input and a display device configured to display images captured by a virtual camera. The virtual camera placement system further includes non-volatile memory configured to store instructions and a processor configured to execute the instructions to generate a three-dimensional simulation including a plurality of challenge points for a user, navigate the simulation including the challenge points in response to the user input, and control the virtual camera in the simulation differently in a plurality of camera stages based on at least the user input and an outcome of navigating one or more of the challenge points.

Abstract: A virtual camera placement system is provided which includes a user input device configured to receive user input and a display device configured to display images captured by a virtual camera. The virtual camera placement system further includes non-volatile memory configured to store instructions and a processor configured to execute the instructions to generate a three-dimensional simulation including a plurality of challenge points for a user, navigate the simulation including the challenge points in response to the user input, and control the virtual camera in the simulation differently in a plurality of camera stages based on at least the user input and an outcome of navigating one or more of the challenge points.

Abstract: A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.