Today I posted my 2nd video on the web. You can visit the video page or go to the video page to view it. I show how to use a hacksaw blade with a sharp-edged glassy stone like quartz along with #0000 fine steel wool and some tinder to start a fire. If you like it, please rate it at 5 stars to help position it more favorably. It was video taped at night with the temperature in the low 30s. I caught the spark on the first strike, but almost lost it when I transferred it to the tinder. With persistent blowing, it kept going and gave a successful fire.