Abstract: A combination motorized and propelled apparatus and moment imparting device is provided to improve the stability of the apparatus in motion with regard to pitch, roll and yaw. The moment imparting device uses one or more rotational members rotating around one or more axes to create a net rotational moment force around a desired axis of rotation. The moment imparting device is in communication with the motorized apparatus to translate that moment force to the motorized apparatus to improve stability or induce a desired rotation.

Abstract: A method and apparatus for configured to be attached to a gunbarrel of a firearm helping to aim at a moving target. The gun sight includes different-sized sight indicators including a first sight indicator located to be closer to the gunbarrel, and a second sight indicator, smaller than the first sight indicator and located to be further from the gunbarrel, both along a first direction that extends from the gunbarrel. In some embodiments use a plurality of different-sized of sight indicators along each of a plurality of directions for tracking moving targets approximately in those directions, for helping determine the amount of lead (the angle between the gunbarrel and the line to the target) used when shooting. Some embodiments use indicators, such as printed or embossed lines, icons, or tinted shapes, on a transparent substrate, while others use a wire-like structure formed with the indicators. Some embodiments use an anti-reflective coating.

Abstract: A test probe guide device 10 for use with a conventional electrical test probe 100 and an electrical wire 200 wherein the guide device 10 includes a housing member 20 dimensioned to receive the test probe 100 and spring biased plunger disk 30 and further including a wire engaging unit 13 comprising a hook member 40 dimensioned to captively engage the electrical wire 200 to allow the test probe needle 102 to be electrically connected to the electrical wire 200.