An apparatus for a rotary internal combustion engine. The resilient sheet is arrangeable between a relaxed configuration, wherein the resilient sheet is generally flat, and a flexed configuration, wherein the first portion is flexed into a curved shape that results in the second portion bending toward the first portion along the scored boundary. This composition may be used as a washing composition, by providing an appropriate dilution to the softener composition. The blends can be used to make elastomeric films and coatings that can be used in laminates, which can be used to form manufactured articles such as architectural and vehicular glazing, eyewear, displays and signage. Because the delicate LED layers were bonded to the package substrate while attached to the growth substrate, no intermediate support substrate for the LED layers is needed. In the second mode, the same thrust chamber is operated as a liquid hydrogen-oxygen rocket, where the liquid oxygen is the SLO2 collected during the first mode.