temp. links:
sawing device and test chicken bone
microscope (older scheme)
device for polarized light microscopy
image processing
test chicken (2020-04)
3D models
Av-8
Av-11
Av-18
Av-19
Av-24
Av-34
Av-26
Av-42
Av-11996
Av-11997
bioerosion: all bones
tooth from Kyiv sands