Scottish polearms and early 16th centuries. Though clearly a pole weapon, its exact form is obscure. David Caldwell suggests it may have been similar to a Holy Water Sprinkler. The Jeddart staff (also Jedburgh or Jedwart) is a polearm of the 16th and 17th centuries with a glaive-like blade which is fixed to its haft by two sockets, in the manner of a bardiche. Form D in the Caldwell classification. The Lochaber axe is a simple axe with a broad curved blade usually attached to its long haft at two points. On the back of the blade is a simple hook. This
Radar configurations and types Radar configurations and types Radar configurations and types is an article about listing the different uses of radars. Radar come in a variety of configuration in the emitter, the receiver, the antenna, wavelength, scan strategies, etc. Search radars scan great volumes of space with pulses of short radio waves. They typically scan the volume two to four times a minute. The waves are usually less than a meter long. Ships and planes are metal, and reflect radio waves. The radar measures the distance to the reflector by measuring the time of the roundtrip from emission of a pulse to reception,