As a corollary to this theory he expresses his opinion, based on experimental researches, that a flame becomes luminous at a lower degree of temperature the denser the gases which enter into its ...

NASA's Hubble Space Telescope shared stunning images of the mysterious Flame Nebula, a celestial marvel located approximately ...

The flame gases (like ordinary open flames) are in general luminous, and their temperatures as determined by (i) calculation, (ii) fine platinum wires and (iii) quartz-covered platinum wires of ...