Carbon is the 15th most abundant element in the earth’s crust. It is the fourth most abundant element in the universe by mass. The exploitation of carbon is behind the success story of the industrial revolution. We have been able to harness the carbon in fossil fuels to power our machines, cars and airplanes. It is hard to imagine life nowadays without the benefits that fossil fuels have given us.
The uses of carbon do not stop there. Diamond is a form of carbon. It fascinates us in terms of its brilliance. Its hardness also makes it a useful cutting tool. The most common form of carbon is graphite. This is used to make motors turn around thanks to carbon brushes. These work because carbon is also a conductor despite not being a metal. It is for this reason that EDM works. This is a process where electricity is sent between two eletrodes, one of which is a graphite electrode. The gap between the electrodes causes a spark that can be used to cut the hardest metals to a high level of accuracy.
Over the last 20 years carbon has been central to nanotechnology that is able to make systems at a molecular level.
It is thus a shame that our use of carbon is also simultaneously our potential ruin. As fossil fuels are burnt they release carbon dioxide into the atmosphere that is inert. This traps solar heat and causes global warming. The dangers of global warming cannot be overemphasized as it thrreatens to raise sea levels by over 200 feet and submerge 60% of the world’s land mass.
It is the job of engineers and scientists to find ways to use carbon without changing the global climate. This is the main challenge in the 21st Century.
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