There was powdered magnesium in contact with it and liquid oxygen all about.
We may safely feel certain that the nostrum was not liquid oxygen.
liquid oxygen boil off made a hazy lake in which men walked with apparent unconcern.
The bullet—a small, thin metal shell, filled with a secret chemical and liquid oxygen—went wild.
You and your President, too, aren't worth the liquid oxygen to blow you to Hades!
Then he went to the air-apparatus and took out a flask of the liquid oxygen used to keep his breathing-air in balance.
The beauty is enhanced by the fact that while liquid air is colorless, or practically so, liquid oxygen is distinctly blue.
Of course cotton sheeting in liquid oxygen is not quite as good an explosive as carbon-black, which they used down in the mine.
This difference amounts to about 1⁄10 at the temperature of liquid oxygen, and about 1⁄5 at that of liquid hydrogen.
The liquid oxygen left after exposure of liquid air may be placed in a hollow in a cake of ice.