Icelandic horse them. Horses played a significant part in Norse mythology, and several horses played major roles in the Norse myths, among them the eight-footed pacer named Sleipnir, owned by Odin, chief of the Norse gods. Skalm, a mare who is the first Icelandic horse known by name, appeared in the "Book of Settlements" from the 12th century. According to the book, a chieftain named Seal-Thorir founded a settlement at the place where Skalm stopped and lay down with her pack. Horses also play key roles in the Icelandic sagas "Hrafnkel's Saga", "Njal's Saga" and "Grettir's Saga". Although written in the 13th
Legged robot tripod. Four-legged robots also benefit from a lower center of gravity than two-legged systems. Four legged robots include: Six-legged robots, or "hexapods", are motivated by a desire for even greater stability than bipedal or quadrupedal robots. Their final designs often mimic the mechanics of insects, and their gaits may be categorized similarly. These include: Six-legged robots include: Eight-legged legged robots are inspired by spiders and other arachnids, as well as some underwater walkers. They offer by far the greatest stability, which enabled some early successes with legged robots. Eight-legged robots include: Some robots use a combination of legs and wheels.