Tues. Misc.

A few images illustrating last post:
at top is a single bone collagen molecule followed by three molecules coming together as a fibril with dispersed mineral salt crystals between the molecules. Those helixes inside the molecule are chemicals produced by the osteoblast/osteocytes. Below, a Hansma electron microscopic image of a single fibril. I'm seeing little correlation in that with the above. Possibly a mistaken description somewhere. Hansma's site has disappeared for the moment.
Below, from Planck showing fibril arrays:
And an image of closely alligned fibrils.
This below illustrates where fibrils fit into an osteon. The striped patterned bands curling around the osteon are "collagen fibers".
Training:
Tues. 12/15 fourteen degrees, but also a regular off day.