It has a higher calorific value and burns with a luminous flame.
2.
Blue water gas ( BWG ) burns with a non-luminous flame which makes it unsuitable for lighting purposes.
3.
He also studied luminous flames and the effects of atmospheric pressure on dense ignited gas, and was one of the discoverers of helium.
4.
The test involves introducing a sample of the element or compound to a hot, non-luminous flame, and observing the color of the flame that results.
5.
This reduced mixing produces an incomplete reaction, producing a cooler but brighter yellow which is often called the " safety flame " or " luminous flame ".
6.
He noticed that at the summit the candle gave a very poor light, and was thereby led to investigate the effect produced on luminous flames by varying the pressure of the atmosphere in which they are burning.
7.
The gas industry did not cede the gas lighting market to electricity immediately, as the invention of the Welsbach mantle, a refractory mesh bag heated to incandescence by a mostly non-luminous flame within, dramatically increased the efficiency of gas lighting.
8.
I would argue that we are becoming at least somewhat more morally lucid about Anne Frank now that, for some reason, more than half a century after her luminous flame was snuffed out by Nazi malevolence, she is receiving more attention than she has since her diary was first made into a play in the 1950's.
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