Lami's theorem. (mechanics). When three forces act on a particle in equilibrium, the magnitude of each is proportional to the sine of the angle between the other two. 1  Facebook.
Variable reactions: Brown recluse spider's bite can cause no reaction, a mild reaction, an immediate or a delayed reaction. With a significant reaction a which blister appears after bit. The surrounding skin becomes hard, swollen & can be red, white & blue. A deep lesion can develop which can eat through fat and muscle.
In some cases, patients report feeling a pinprick at the site of the spider bite. In this image, four months after, the dry, dead circle of skin tissue on this woman's leg illustrates the classic look of a brown recluse (Loxosceles reclusa) spider bite.