And liquid nitrogen reminded me of the distant past. In the early 80s of the last century, I went to Donetsk for patent matters, to the Institute for Mining Rescue (VNIIGD). It was located on the main street of the city and was a whole complex of multi-storey buildings with two closed courtyards. We sit in the cabinet that goes through the windows to one of these courtyards, and suddenly we hear the soul-breaking scratch of metal on the asphalt. We look out the window, and there the institutional truck pulls into the center of the courtyard the iron pad three meters in length and width and depth from half a meter. I ask why this miracle, and I am answered that the institute opened the theme of extinguishing underground fires with liquid nitrogen.
Now there will be the first experiment, so to say, a pen test. I think the idea is clearly not without common sense. A better way to deliver practically inert gas to the focal point of fire is probably not to come up with. It costs liquid nitrogen a penny.

Meanwhile, a huge tank with liquid nitrogen is brought into the yard. Two powerful children in cotton and gloves attach to it a shiny hose. One occupies a post near the valve, the other takes the hose to make.
After the tank, a tank with gasoline appears and gasoline is poured into the pot probably three fingers. Then the tank leaves, and a squadron of mine rescuers in combat uniforms with healthy fire extinguishers goes out into the yard, safety equipment so to speak, and is located around the counter. Finally on the stage appears a large, mouthy leadership companion in a smooth shirt, tie and shirt (winter!) The fire extinguishing sector. By this time, all the windows are already covered by employees and they observe as on the command of the field, the mining rescue fighter ignites the torch and throws it into the pit. When it burned out on the whole surface, the chief gave a blast to the nitrogen. A thick silver stream of liquid nitrogen in white smoke stumbled into the flame-covered paddle and...

There are experiments whose results are easy to explain later, but difficult to predict, based only on common sense. Knowledge and the desire to think. This experiment was just like that. Gasoline and nitrogen have close dipole points. Therefore, the liquids are mixed as easily as alcohol is mixed with water. Further, under the influence of high temperatures, nitrogen intensely evaporated from the volume, became lighter than the surrounding air and pulled everything else up. As a result, about a minute later, a cloud of burning nitrogen and gasoline suspension began to rise from the paddock. Black-bitter with white veins, it was exactly like a nuclear fungus from civil defense films. When the mushroom rose to the fifth floor...

I could write, “There was a powerful explosion.” But that would be untrue.
In fact, Ebanulo and Ebanulo with terrible force! It crashed so much that almost all of the glass was broken. The walls, the cabinets, the people – everything was covered with a thick black hose. Then, as always happens in such cases, there was silence. The first came to himself and came out of the table former frontman Abram Borisovich. No one remembered how he got under the table, including himself. He shrugged, turned out to be the cleanest in the room and said with satisfaction, "Well, this idiot we will never see again.
Go to promotion.

proved to be right.

by Abrp722