Given a situation where a projected laser line appears to have terminated or faded as it intersects with a work-surface, a fan-out redirecting means is used to capture and redirect energy radiating above and parallel to, or radiating away from the given work-surface area, where the captured energy is from a line projector mounted to the surface. The first datastore may include an inventory of at least one of one or more tasks and inventory items and the second datastore may provide a communication interface for a first entity managing the activity and a second entity completing the one or more tasks to accomplish the activity at a construction site, where the one or more tasks can be communicated to the second entity. The truss maintains its geometry in an improved manner after the onset of yielding, thereby increasing ultimate strength of the pole-truss assembly. The invention also provides a novel synthetic biodegradable polymer, a furanalkyne-functionalized poly -based polymer, whose composition can be designed to meet the defined physical and chemical property requirements. Since the fluid jet passes over the normally running hot rolled strip without touching therewith, the strip portion is properly prevented from being displaced by squirting the fluid jet.