Re: survival idea
You need a flare not a spark. If nobody is looking in your direction or you are obscured by terrain it will be invisible. A signal fire would be better coupled with a whistle you could blow three blasts on at intervals. 3 is the sign of distress and a whistle carries a long ways. The glow of even a small fie plus the smell of the smoke if you feed it greenery will do you better than a blank shell.
"When once a republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil."~~- Thomas Jefferson
Roman Catholic, Life Member of American Legion, VFW, Wisconsin Libertarian party, Wi-FORCE, WGO, NRA, JPFO, GOA, SAFand CCRKBA