If ''The Wretched of the Earth'' was not ''the handbook for the black revolution,'' as its publisher boasted, it was certainly a sourcebook of revolutionary slogans. (Eldridge Cleaver once said that ''every brother on a rooftop can quote Fanon.'') ''Violence,'' Fanon argued most famously, ''is a cleansing force.
Carbon dioxide is the lasing medium in a carbon dioxide laser, which is one of the earliest type of lasers. Carbon dioxide can be used as a means of controlling the pH of swimming pools, by continuously adding gas to the water, thus keeping the pH from rising. Among the advantages of this is the avoidance of handling (more hazardous) acids.
This naturally occurring chemical compound - Carbon dioxide (CO2) - is a colourless, non-toxic gas having a faint, sharp odour and a sour taste. The gas composed of one carbon atom and two oxygen atoms. Carbon dioxide is used commercially in fire extinguishers and to carbonate beverages. The gas freezes solid at minus 56Â°C and is known as dry ice in that state. At ordinary temperatures, carbon dioxide is quite unreactive; but above 1,700 Â°C it partially decomposes into carbon monoxide and oxygen.