Destructive Electromagnetism essays

Destructive Electromagnetism essays Electromagnetism exists everywhere. When people drive, walk, or even go to the beach. However, due to the extreme complexity of the topic, electromagnetism has proven to be a subject studied by those who are crafty and willing enough to explore the domain. The ideas of electricity start from simple objects such as springs, coils and magnets that simply created a current for some sort of affect to either start or light some object. Now these theories have expanded to a point where our everyday lives are affected by it. When people start their cars for example, a magnet turned by a flywheel generates current through coils to help ignite the cars electrical system. In short, electromagnetism exists everywhere in our everyday lives. There are many examples of electromagnetism effecting technical objects of todays society. One particular example would be radar devices used for tracking ships, cars, or even submarines. The ideas of sending out a signal composed of a wave of certain frequency and wavelength returned at a certain time can be used to find objects or map out underwater territory. Use of similar techniques allows for policemen to radar speeds of drive-by cars. Although, crafty engineers have created stealth devices that are able to mask their speed by accepting the radar beam and by scrambling it via frequency changes or simply send the same signal back at a delayed time thus justifying a slower speed. This is just a mere fraction of the uses of electromagnetism. Another possible use for electromagnetism would be on the vile side of destruction. There are many aspects of electromagnetism. One of the fiercest uses is as a weapon. EM guns, tanks, and devices are harmful and more dangerous than normal guns and missiles due to their non-ballistic style of weaponry. Unfortunately, this horrendous idea is true. Dates as far back as 1940 have shown that EM guns h ...

Elemental Composition of the Human Body by Mass

Elemental Composition of the Human Body by Mass This is a table of the elemental composition of the human body by mass for a 70 kg (154 lb) person. The values for any particular person may be different, especially for the trace elements. Also, the element composition does not scale linearly. For example, a person who is half the mass may not contain half the amount of a given element. The molar amount of the most abundant elements is given in the table. You may also wish to view the element composition of the human body in terms of mass percent. Reference: Emsley, John, The Elements, 3rd ed., Clarendon Press, Oxford, 1998 Table of Elements in the Human Body by Mass oxygen 43 kg (61%, 2700 mol) carbon 16 kg (23%, 1300 mol) hydrogen 7 kg (10%, 6900 mol) nitrogen 1.8 kg (2.5%, 129 mol) calcium 1.0 kg (1.4%, 25 mol) phosphorus 780 g (1.1%, 25 mol) potassium 140 g (0.20%, 3.6 mol) sulfur 140 g (0.20%, 4.4 mol) sodium 100 g (0.14%, 4.3 mol) chlorine 95 g (0.14%, 2.7 mol) magnesium 19 g (0.03%, 0.78 mol) iron 4.2 g fluorine 2.6 g zinc 2.3 g silicon 1.0 g rubidium 0.68 g strontium 0.32 g bromine 0.26 g lead 0.12 g copper 72 mg aluminum 60 mg cadmium 50 mg cerium 40 mg barium 22 mg iodine 20 mg tin 20 mg titanium 20 mg boron 18 mg nickel 15 mg selenium 15 mg chromium 14 mg manganese 12 mg arsenic 7 mg lithium 7 mg cesium 6 mg mercury 6 mg germanium 5 mg molybdenum 5 mg cobalt 3 mg antimony 2 mg silver 2 mg niobium 1.5 mg zirconium 1 mg lanthanum 0.8 mg gallium 0.7 mg tellurium 0.7 mg yttrium 0.6 mg bismuth 0.5 mg thallium 0.5 mg indium 0.4 mg gold 0.2 mg scandium 0.2 mg tantalum 0.2 mg vanadium 0.11 mg thorium 0.1 mg uranium 0.1 mg samarium 50 g beryllium 36 g tungsten 20 g