Facts about carbon dating
a colorless, odorless, incombustible gas, CO, somewhat heavier than air, that is a product of respiration and combustion: produced commercially and used widely in fire extinguishers, carbonated beverages, etc.: in photosynthesis, carbon dioxide and water are absorbed by plants, which synthesize certain carbohydrates and release oxygen into the air, that is formed during respiration, combustion, and organic decomposition, is an essential component in photosynthesis, and is used in food refrigeration, carbonated beverages, inert atmospheres, fire extinguishers, and aerosols.
Your brain interprets this rapid transfer of heat energy away from your skin as meaning you are touching something very cold – so diamonds at room temperature can feel like ice.
Ancient cultures did not realize, of course, that these substances were different forms of the same element French scientist Antoine Lavoisier named carbon and he carried out a variety of experiments to reveal its nature.
In 1772 he pooled resources with other chemists to buy a diamond, which they placed in a closed glass jar.
If the pressure is increased to 10 atmospheres carbon (graphite) is observed to melt at 3550 °C.
Carbon has been known since ancient times in the form of soot, charcoal, graphite and diamonds.
Although it had been previously attempted without success, in 1955 American scientist Francis Bundy and coworkers at General Electric finally demonstrated that graphite could be transformed into diamond at high temperature and high pressure.