Abstract
THE long duration of the luminosity (afterglow) of flame gases after the explosion of a well-mixed inflammable gaseous mixture contained in a large closed vessel, in which cooling takes place slowly1, suggests that were it possible to secure steady streamlined flow of the flame gases rising from a very large open flame, thus eliminating cooling due to turbulence, they would appear as a column of luminous gas many feet in height. Experimenting recently, we have been a little surprised to find how far we may go in this direction with a small Bunsen flame resulting from the combustion of fully aerated coal-gas. It is easily possible to obtain a column of luminous gas which, viewed in a dark room, extends to a height of 2 ft., whereas with the ordinary Bunsen flame luminosity ceases at a height of only 7 or 8 in.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
