Safety lamp could create a sufficient updraft that firedamp would not penetrate down the chimney. Further observations of the speed of flame fronts in fissures and passageways led him to design a lamp with fine tubes admitting the air. Sir Humphry Davy was asked to consider the problems of a safety lamp following the Felling explosion. Previous experimenters had used coal gas (chiefly carbon monoxide) incorrectly, believing it to be the same as firedamp. Davy however performed his experiments with samples of firedamp collected from pits. As an experimental chemist, he was familiar with flames not passing through gauze; his experiments enabled
S. Isadore Miner S. Isadore Miner S. Isadore Miner (September 25, 1863 – August 10, 1916), also known by the pen name Pauline Periwinkle, was an American journalist, poet, teacher, and feminist. She served as the first corresponding secretary of the Michigan Woman's Press Association and was a staff member of "Good Health", Battle Creek, Michigan. Using the pen name of "Pauline Periwinkle", Miner was the founder and editor of the "Woman's Century" page of "The Dallas Morning News". She was "one of the most widely-read columnists in the early twentieth century." Sara Isadore Sutherland was born in the township of Battle Creek,