Anywhere air circulation is slow there is the need of a mechanical aid to guarantee the health of workers
I was watching “Mystery at Blind Frog Ranch” on Discovery (Season 2 Episode 8 – “Darkness, Danger and Death”) when they encounter H2S in a tunnel that they found. I wanted to do some research on the deadly gas and learn more.
I was watching the television series “The Mystery at Blind Frog Ranch”, season 2 episode 5 on Discovery, when they came across some rocks that had been drilled and gallium placed in the voids. The rocks were then crated and hidden in a cave system. I wanted to research the gallium for myself.