{"aspect_id":"AS82","aspect_name":"momentum","aspect_reference":"NIST Special Publication 1038","aspect_symbol":null,"name":"momentum pound foot per second","scale_id":"SC844","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN179","unit_name":"pound foot per second","unit_reference":"NIST Special Publication 1038","unit_symbol":"lb.ft.s-1"}