The Electric Coil Rifle, a staple of magnetic weaponry, and a standard by which such weapons are measured.
The basics of magnetic weaponry in the Cosmic Era
Termites, in certain places, make homes that can be eight meters high and only a half meter wide. They are built facing North to South to take advantages of the suns travel, maximum heat in the morning and evening and little in the afternoon. Imagine grassy plains with vertical structions facing a certain direction all over the place. Ambush? Maze? New creature? Larger structures?