The Sun is acting weird. It typically puts on a pageant of magnetic activity every 11 years for aurora watchers and sungazers alike, but this time it overslept. When it finally woke up (a year late), it gave the weakest performance in 100 years.
Each bone in your body is made up of three main types of bone material: compact bone, spongy bone, and bone marrow. Compact bone. Compact bone is the heaviest, hardest type of bone. It needs to be very strong as it supports your body and muscles as you walk, run, and move throughout the day.how/hide words to know. 1  Bone marrow: the tissue in the middle of bones that creates red and white blood cells 2  ... Compact bone: the heaviest, hardest type of bone in the body. 3  Lining cell: flat cells that make up and cover the outer layer of bone. 4  Marrow: a soft tissue found inside bones.
Diaphysis. The largest part of any long bone is the long cylindrical middle, called the diaphysis. The diaphysis takes the brunt of the force a long bone must support, and is made up primarily of compact bone -- a dense, strong bone composed of minerals, as hard as many types of rock.The diaphysis also has small holes for blood vessels that carry nutrients to the compact bone cells.etaphysis. Between the ephiphysis cap and the long shaft of the diaphysis is a wide section of bone called the metaphysis. The metaphysis transfers load and stress from the joints at the ephphysis into the longer and stronger diaphysis.