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path: root/doc/proposals/materials.yaml
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author: 'ben lipkowitz'
license: 'GPL2+'
urls: 
- 'http://heybryan.org/mediawiki/index.php/Skdb'
- 'http://fennetic.net/git/gitweb.cgi?p=skdb.git;a=blob_plain;f=materials.yaml'
- 'git://fennetic.net/git/skdb.git/'


steel: !material #you have to import skdb to parse this as a skdb.Material object
    density: 7.85g/cc
    friction_coefficient: #see MH27 page 1499
        steel: 0.4
        steel, zinc-plated: 0.17

aluminum: !material
    density: 2.7g/cc
    similar:
        - steel
        - metal
    description: 
        a white lustrous metal, aluminum has been prized
        for its use in beer cans, lawn furniture, and fighter jets