While the hoist is traveling all the way from Sturgeon Bay, Wis., the slings are coming from Sequim, where Olympic Synthetic Products has been manufacturing flat web slings, round ...

As the arm of the trebuchet begins to move, the sling drags the ball before lifting it into the air. This gives the swinging arm time to pick up speed. The sling is an extension of the beam's reach.

Medicare may cover a Hoyer lift if it is medically necessary and a healthcare professional prescribes it. Learn more about eligibility and coverage.