VeriChip for human implantation. A radio frequency identification (RFID) chip for unique human identification originally targeting hospital patients. The company is now named PositiveID.
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC
History of Boat Propeller Safety
Mitigating Boat Propeller Injuries & Fatalities Chart
Four Volume Review of the Boating Industry’s Boat Propeller Guard Product Liability Defense