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.
Types of Bones or  Bone Types  can be classified according to the shape of the bone. The shape of bones reflect their functions. When describing specific bones it can be useful to start by stating the type of bone in terms of its shape, e.g.  the scapula is a large flat triangular bone .The main 5 types of bone (in terms of bone shape) are listed in the following table together with brief descriptions and examples of each. First remember the list of types of bones: 1  Long Bones.2  Short Bones. 3  Flat Bones.4  Irregular Bones.5  Sesamoid Bones.he main 5 types of bone (in terms of bone shape) are listed in the following table together with brief descriptions and examples of each. First remember the list of types of bones: 1  Long Bones. 2  Short Bones. 3  Flat Bones. 4  Irregular Bones. 5  Sesamoid Bones.