Abstract: Disclosed is a method for signaling the presence of a potential obstacle, such as a pedestrian (P) to a vehicle driver (V), in particular a machine driver, wherein each obstacle (P) is provided with a transmitter (Em) capable of outputting a presence signal of the obstacle, and including two at least substantially orthogonal transmitting antennas (A1, A2) and power supply device (1-5) suitable for outputting in-phase quadrature signals to the antennas, and each vehicle (V) is provided with a receiver (Re) including two at least substantially orthogonal receiving antennas (Ax, Ay).

Abstract: The hunting of game, such as squirrels, is facilitated by the simultaneous steps of simulating a distress cry of a young squirrel and the sounds which would be created by a predator in attacking a young squirrel. The simulated distress cry and sounds of the attacking predator cause inactive mature squirrels to become active and to give an indication of their location, such that they can be hunted effectively during all daylight hours. The distress cry is simulated using a novel game calling device in the form of a whistle and the predator sounds may be simulated by beating the ground with portions of flexible branches of an adjacent bush.

Abstract: A recoil protection system is disclosed which includes a fabric yoke. A leather panel is stitched to the yoke with a foam pad confined in the volume between the leather panel and the yoke. The foam pad is sized with its rest volume somewhat larger than the volume defined by the leather panel and the yoke such that the foam pad is in a constant state of compression. The foam pad is formed of a material having a high Loss Factor, and the yoke is held in place on the shoulder of the user by means of a harness which includes first and second straps, each of which passes under a respective arm of the user. Preferred materials for exceptionally effective foam pads are disclosed.