Under the Sign of the Black Mark Swedish bodybuilder. The song "Woman of Dark Desires" is a tribute to the band's namesake, Elizabeth Báthory. "Enter the Eternal Fire" was the band's first epic, reaching nearly seven minutes in length, with lyrics referring to a deal with the Devil. The song "Equimanthorn" makes references to Hell as well as to Norse mythology, including Odin's "eight-legged black stallion" Sleipnir. Eduardo Rivadavia of AllMusic wrote that the album "remains a career highlight for Bathory, and a crucial LP for all lovers of extreme metal." Fenriz of Darkthrone called it "the quintessential black metal album". He also cited it as a
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.