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.
The White Mountain Apache are one of several Western Apache tribes, each of which has a different language, history, and culture despite being related. They are related to members of the Yavapai Apache Nation, which also has ties to the Grand Canyon.ome examples of the intricate arts and crafts of the White Mountain Apache, including pottery, beadwork, textiles and basketry, are displayed in front of a traditional dwelling, or wickiup.