Abstract: Systems and methods for interactive live video streaming in accordance with embodiments of the invention are illustrated. One embodiment includes an interaction encoder for transmitting interactive live video streams, including a processor, and a memory, containing an interaction encoding application, where the interaction encoding application directs the processor to obtain media data comprising a video track, receive a request to generate an interaction object in the video track at a given timestamp of the video stream, generate interaction data based on the request, where the interaction data includes a data structure capable of being decoded in near-real time to produce the interaction object in the video track at the timestamp when played back, and transmit the interaction data to an interaction decoder.

Abstract: A manually operable device for driving nails into material includes a barrel having a bore into which nails can be placed or dropped and the barrel capable of reaching difficult, narrow, tight spaces that are unreachable by a hammer. Disposed within the bore is a drive rod having a flat face for striking the nail. A handle is connected to the drive rod and is manually reciprocated by the individual thereby transmitting reciprocal motion to the drive rod so that the drive rod can strike and drive the nail into the material. In operation the handle, the drive rod, and nail are axially aligned thus maximizing the striking force of the drive rod against the nail. A safety cable has one end secured to the handle and a second end secured to the barrel for attaching the device to the worker's belt or apron for easy retrieval and to prevent the device from being dropped; and the safety cable's length allows for back loading as well as front loading of nails into the barrel.