The Rockwell hardness tester to measure the hardness of metal measures resistance to penetration like the Brinell test, but in the Rockwell case, the depth of the impression is measured rather than the diametric area. With the Rockwell tester, the hardness is indicated directly on the scale attached to the machine.
(Redirected from Apache Nation) The Apache (/ÉËpÃ¦tÊiË/; French: [a.paÊ]) are culturally related Native American tribes from the Southwestern United States, and have traditionally lived in Eastern Arizona, Northern Mexico (Sonora and Chihuahua), New Mexico, West Texas, and Southern Colorado.
There are six tribes that make up the Apache: the Chiricahua, Jicarillo, Lipan, Mescalero, Western Apache, and Kiowa. The Apache traditionally lived in the Southern Great Plains including Texas, Arizona, New Mexico, and Oklahoma.They are closely related to the Navajo Indians.he Apache ate a wide variety of food, but their main staple was corn, also called maize, and meat from the buffalo. They also gathered food such as berries and acorns. Another traditional food was roasted agave, which was roasted for many days in a pit. Some Apaches hunted other animals like deer and rabbits.