Search results
Results From The WOW.Com Content Network
The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odor. [2] The word was then intended to refer to what was sometimes known as pea soup fog , a familiar and serious problem in London from the 19th century to the mid-20th century, where it was ...
Blackdamp (also known as stythe or choke damp), sometimes found in enclosed environments such as mines, sewers, wells, tunnels and ships' holds, is an asphyxiant, reducing the available oxygen content of air to a level incapable of sustaining human or animal life.
Rhinorrhea (American English), also spelled rhinorrhoea or rhinorrhœa (British English), or informally runny nose is the free discharge of a thin mucus fluid from the nose; [1] it is a common condition.
Breathing gas must be supplied for work in unbreathable normobaric atmospheres, which may be toxic, irritant, narcotic or hypoxic, and may include firefighting, damage control, exploration, and rescue work, and in normobaric environments where contamination of the person (hazmat environments) must be avoided. Open circuit and rebreather systems ...
Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. [1]
Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
Typical maximum with current technologies are in 15,000 range. High-performance fabrics may get A1 test scores in 10,000 to 15,000 g m −2 d −1 range and usually shows that a fabric has a fairly quick release of moisture, but may not be the best over longer periods of use.
Quinzinzinzili is a science fiction novel written in 1935 by the French author Régis Messac (1893 - 1945). [1] [2] This was one of the first post-cataclysmic novels.At the time of World War II (which Messac anticipated), a Japanese scientist develops a chemical reaction that combines the oxygen and nitrogen in the atmosphere.