Resistance Is Useful

It is said that people and lightning follow the path of least resistance. In the case of lightning or other forms of electricity, this is not exactly true. Electricity will flow along every available path, although more flows along those paths where there is less resistance. Individuals may have free will, but taken as a group, they behave in a similar way. Although the majority of travellers will choose the path from A to B which requires least effort, there will always be at least a few who take other paths: sight seers taking a circuitous route; hikers climbing hills and traversing rough terrain. Like power issues with is best soughted out by electrician in South Melbourne, people tend to spread out.

People behave like electricity in many ways, but when it comes to resistance the analogies are very close. Some materials offer little resistance to electricity; copper and other metals are good conductors of electricity. Other materials such as rubber and wood have a high resistance and are used as insulators. Some people welcome change with enthusiasm, but many will resist it, insulating society from some of the consequences of too strong and too rapid changes. Resistors are used in electrical systems to control the voltage and current, to reduce the electricity that flows through a circuit. The size and capacity of the resistor varies depending on the amount of electricity passing through. Small resisters in electronic equipment need to absorb less than a watt of electricity. An industrial electrical contractors in Melbourne however may be working with resistors that handle over 500 amperes of current and are as large as a refrigerator. Resistance in a human system may vary from a few complaints to mass demonstration involving thousands of people. Resistors can be as important in protecting a human system and its components as they are in an electrical one.

In electrical and human systems excessive power can raise the temperature of resistors to a point where they can burn the circuit board and adjacent components, perhaps starting a fire; or they can burn a city and perhaps bring down a government. You call an emergency electrician in Melbourne to fix the problem; in other parts of the world they call in the army. Resistors in an electrical system can be wired together in a series, each one further reducing the flow. In a human system one person can add their voice to another, each adding to the overall resistance. Resisters wired in parallel are less effective as electricity will flow along each path, through each resistor simultaneously, and the more paths, the greater the flow. A very close analogy in a human system is the resistance offered by the old toll ways where stopping at the booths slowed traffic considerably. Adding another point of resistance in parallel, i.e. another booth, actually increased the flow. We often think of ourselves and our behaviour as something separate from the basic laws of physics, because we have free choice. But when you look at human societies, organisations, governments; when you look at human behaviour en masse, you realise that the distinction if any, is very fine.