Abstract: For an organization having a central station and a plurality of distributed outlets, each of the outlets having a cashier's terminal, each of the cashier's terminals coupled to a respective point-of-sale (POS) controller, a method of permitting a billee to pay an invoice issued by a biller is disclosed.
Abstract: An arrow nock having a telescoping impeller and housing with a resilient spring for enhancing the acceleration of launch. In various embodiments, effective together or independently, the housing and impeller are configured and coupled to: create arrow rotation during launch; grip the bowstring during notching and release it during launch; and generate tracking signals.