the many little tricks she knew made her embrace the ultimate one -- the ever more fantastic pressures deeper in her body squeezed not me but the air I breathed into a nitrogen anesthetic.

Plastics are made from synthetic carbon polymers, often with oxygen and nitrogen atoms included at regular intervals in the main polymer chain.

According to tradition, a claim was once made that the shattering of a pumpkin frozen in liquid nitrogen and dropped from a sufficient height would produce a triboluminescent spark.

The dye Prussian blue was first accidentally made around 1706, by heating substances containing iron and carbon and nitrogen.

So-called high-temperature superconducting compounds can be made to superconduct with the use of liquid nitrogen which boils at around 77 K.

It is estimated that half of the protein within human beings is made of nitrogen that was originally fixed by this process ; the remainder was produced by nitrogen fixing bacteria and archaea.

An almost ideal inductor ( Q approaching infinity ) can be created by immersing a coil made from a superconducting alloy in liquid helium or liquid nitrogen.

An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: Its chemical formula is ()< sup >+</ sup >.

Margareta Romberg and Otto Neovius met at the Pulkovo observatory in St. Petersburg, where Otto made observations for his thesis on the spectral lines of nitrogen and oxygen.

Lipscomb began by studying compounds of nitrogen, oxygen, fluorine, and other substances that are solid only below liquid nitrogen temperatures, but other advantages eventually made low-temperatures a normal procedure.

Although crystals were once loaded into glass capillaries with the crystallization solution ( the mother liquor ), a modern approach is to scoop the crystal up in a tiny loop, made of nylon or plastic and attached to a solid rod, that is then flash-frozen with liquid nitrogen.

Nitrogen fertilizers are often made using the Haber-Bosch process ( invented about 1915 ) which uses natural gas ( CH < sub > 4 +)</ sub > for the hydrogen and nitrogen gas ( N < sub > 2 </ sub >) from the air at an elevated temperature and pressure in the presence of a catalyst to form ammonia ( NH < sub > 3 </ sub >) as the end product.

Experiments into what made plants grow first led to the idea that the ash left behind when plant matter was burned was the essential element but overlooked the role of nitrogen, which is not left on the ground after combustion.

The development of superconductors with transition temperatures higher than the boiling point of liquid nitrogen has made the concept of superconducting power lines commercially feasible, at least for high-load applications.

Many naturally-occurring radioisotopes ( another 51 or so, for a total of about 339 ) exhibit still shorter half-lives than 80 million years, but they are made freshly, as daughter products of decay processes of primordial nuclides ( for example, radium from uranium ) or from ongoing energetic reactions, such as cosmogenic nuclides produced by present bombardment of Earth by cosmic rays ( for example, carbon-14 made from nitrogen ).

" High temperature " SQUID sensors are more recent ; they are made of high temperature superconductors, particularly YBCO, and are cooled by liquid nitrogen which is cheaper and more easily handled than liquid helium.

Rayleigh had noticed a discrepancy between the density of nitrogen made by chemical synthesis and nitrogen isolated from the air by removal of the other known components.

The semi-conservative theory can be confirmed by making use of the fact that DNA is made up of nitrogen bases.

Reduction is made with the addition of hydrogen atoms to specific nitrogen atoms on the isoalloxazine ring system:

Inside the shell, a large spherical hydrazine tank made up most of the volume, topped by two smaller spherical nitrogen tanks and a 90 N injection rocket to slow the spacecraft down to go into lunar orbit, which was designed to be capable of firing twice during the mission.

* By their critical temperature: they can be high temperature ( generally considered if they reach the superconducting state just cooling them with liquid nitrogen, that is, if T < sub > c </ sub > > 77 K ), or low temperature ( generally if they need other techniques to be cooled under their critical temperature ).

However, if fish are harvested from areas of new nitrogen the nitrogen will be replenished.

Decreases in biodiversity can also result if higher nitrogen availability increases nitrogen-demanding grasses, causing a degradation of nitrogen-poor, species diverse heathlands.

Many halides e. g. are very ' thirsty ' and can only be studied in their anhydrous form if they are handled in a glove box filled with dry ( and / or oxygen-free ) gas, usually nitrogen.

Nitric oxide present during thunderstorm phenomena, caused by the splitting of nitrogen molecules, can result in the production of acid rain, if nitric oxide forms compounds with the water molecules in precipitation, thus creating acid rain.

Point indicators allow them to track a crop ’ s status, i. e., to see whether diseases are developing, if the crop is suffering from water stress, nitrogen stress, or lodging, whether it has been damaged by ice and so on.

Air is the heated drying medium ; however, if the liquid is a flammable solvent such as ethanol or the product is oxygen-sensitive then nitrogen is used.

If the syngas is post-treated by cryogenic processing, it should be taken into account that this technology has great difficulty in recovering pure carbon monoxide if relatively large volumes of nitrogen are present due to carbon monoxide and nitrogen having very similar boiling points which are-191. 5 ° C and-195. 79 ° C respectively.

Cropping systems that include a variety of crops ( polyculture and / or rotation ) may also replenish nitrogen ( if legumes are included ) and may also use resources such as sunlight, water, or nutrients more efficiently ( Field Crops Res.

In a chemical manufacturing plant, reactions are routinely conducted under nitrogen even if they are not sensitive to air, to minimize fire hazards.

Under ideal conditions ( i. e., if pure oxygen is breathed before onset of apnea to remove all nitrogen from the lungs, and pure oxygen is insufflated ), apneic oxygenation could theoretically be sufficient to provide enough oxygen for survival of more than one hour's duration in a healthy adult.

Since the liquid to gas expansion ratio of nitrogen is 1: 694 at, a tremendous amount of force can be generated if liquid nitrogen is rapidly vaporized.

During decompression stops at the end of a dive, if the diver unwittingly slightly descends again and makes a Valsalva to relieve his ears, there exists a non-negligible risk to transfer nitrogen bubbles from one side of the heart to the other one if the foramen membrane is permeable.

The ratio of carbon to nitrogen in a plant is a crucial factor to consider, since it will impact the nutrient content of the soil and may starve a crop of nitrogen, if the incorrect plants are used to make green manure.

* Air is a mixture of 21 % oxygen, 78 % nitrogen, and approximately 1 % other trace gases, primarily argon ; to simplify calculations this last 1 % is usually treated as if it were nitrogen.

In carbon dioxide-cooled reactors such as the AGR, if the solid control rods were to fail to arrest the nuclear reaction, nitrogen gas can be injected into the primary coolant cycle.

One of its main drawbacks is that it is reacts with oxygen at moderate temperatures ( over 300 ° C ). Activated carbon nitrogen isotherm showing a marked microporous type I behavior

* Nitrous oxide ( N < sub > 2 </ sub > O ), nitrogen (- I, III ) oxide

* Nitrosylazide ( N < sub > 4 </ sub > O ), nitrogen (- I, 0, I, II ) oxide

After World War I, a calcium carbide and calcium cyanamide factory was set up, followed by a nitrogen and later by a coke factory.

Despite the similarity to the apparatus used by Podkletnov, the authors carefully state in their eprint ( see citation below ) that their claimed result should not be confused with the claims of Podkletnov ; specifically, they measured a tangential gravitomagnetic force created by Type I superconductors, ( Elemental Lead and Niobium rings at liquid helium temperatures ) but failed to measure an axial force from Type II superconductors ( YBCO and BSSCO ceramics at liquid nitrogen temperatures ) as described by Podkletnov.

The company had been a major factor already in World War I, when their development of the Haber-Bosch process for nitrogen fixation compensated for Germany's being cut off from the Chilean nitrate trade and allowed IG Farben to produce synthetic nitrate.

Type I diamonds have nitrogen atoms as the main impurity, commonly at a concentration of 0. 1 %.

Excess nitrogen, in the form of ammonia, and other byproducts of the urea cycle, accumulate in the bloodstream, leading to the characteristic features of type I citrullinemia.

* Schidlowski, M., Hayes, J. M., Kaplan, I. R., 1983, Isotopic inferences of ancient biochemistries: carbon sulfur, hydrogen, and nitrogen: p. 149-186 in J. W.