Electrical engineers are very important in the fields of technology. Put another way, such an appraisal determines whether the pre-requisites of a successful project have been covered and good choices have been made in regard to (i) location, (ii) plant capacity, (iii) raw materials requirements and (iv) other such factors as availability of required professional, technicians and workers. In addition, project costs are estimated and subsequently manufacturing costs are worked out. Adverse environmental impact, if any, is also visualized and efforts are made to reduce it through a better project design incorporating treatment of effluents and noise abatement. Yes, the waves from the cell phones are harmful to our physical body such as our heart, but most of us cannot avoid it. It can affect our heart and internal organs. Recent study tells that even reproductive organs are adversely affected by waves that come from cell phones. It is better to use a mobile operator which works on a lower frequency, as higher frequency can have higher ill effects on our brain. Humming electrical appliances that are powered by the solar electric system. It would take a few engineers and some physics experts to explain the entire process, but the simple explanation is that nuclear power is created by splitting atoms (specifically, uranium atoms). The fission process (meaning, the splitting process) creates energy in the form of heat. When man first discovered how to make fire, tools, and swords, they presented the challenges of how to use them with as great a demand and as serious a consequence as the inventions of the present day. Some of the people applied them to make things better and some took the opposite approach. The more enlightened saw potential for progress and benefits and taught those views to their children. And vice versa. It did have to do with their mindsets but those were not set by the new “toys” but by their heart-set, too. Perhaps the most noticeable thing about mankind is and has been the differences in personal development of its members. That keeps up with progress better in some individuals than in others. Many factors go into it, but certainly one of the major ones is how a human is taught from its birth and how it is treated in its formative years. The results have shown throughout our history on the planet. Conversely, regular exercise appears to be associated with a decreased risk of cancer. In a June 2019 study published in Medicine & Science in Sports & Exercise , which involved several million study participants, researchers found a strong connection between more physical activity and a decreased risk for several types of cancer.