Nitrogen
| N | 7 |
| Nitrogen | |
Abundance: 2.7%
Nitrogen (chemical symbol: N7) is the most abundant atmospheric element in the Earth's atmosphere, making up 78% of the total atmospheric gas. Mars, however, has less nitrogen in it's atmosphere, only 3% of the total atmospheric gas. This relative scarcity of nitrogen will cause an expense for colonists on Mars. Distilling the atmosphere is a rather straight forward operation in which the cooling needed in liquefying the carbon dioxide is mainly provided by evaporating the liquid carbon dioxide after the nitrogen has been removed. Likewise the power for compressing the carbon dioxide is partially provided by expanding the output waste through a turbine with a common shaft with the compressor.
The "nitrogen cycle" is an essential terrestrial process that produces organic compounds intrinsic to life on Earth. "Fixing" by lightning strikes or bacterial processes combine atmospheric nitrogen with other elements (such as hydrogen, producing ammonia) producing organic compounds useful to plants (sustaining growth and used in photosynthesis), thereby supporting ecosystems. Nitrogen can be found in amino acids, proteins and DNA, making it an essential component of life as we know it.
Ordinarily, wart freezing leaevs little or no scar in the area treated. There may be some slightly pigmented (light or dark) left for a few weeks after the wart freezing treatment and usually fade progressively.A complication that can occur is an infection when the blister is broken prematurely. If you notice any excessive redness or pus formation around the wart or extreme tenderness, or any signs of streaks near the wart that has been treated, you should notify your regular physician at once. This could be a secondary infection and may need to be treated with antibiotics. When the blisters break normally, a little clear fluid can often be seen flowing from them. If you see pus, yellowish or cloudy liquid, call your health care provider at once.
Uses
- May be used to prepare dead bodies prior to disposal. Freezing bodies with liquid nitrogen and then powdering the remains (through vibration) may be a viable means to reuse valuable biomass (in greenhouses etc.).
