Are you a Human or a Nerd?

Humans- are people who like normal things like music, dancing, wine, nice food, etc.

Nerds- are people that like and can use complicated things, like technical gadgets, computers, smart phones, Sat Navs, etc.

Super Nerds- (SNerds) are people who do things like programing, web development, IT etc.

ETs- these are people that like and understand things like quantum mechanics, relativity, nuclear physics, etc.


Michael Faraday- one the Founders of Modern Electricity

Michael Faraday (22/09/1791 to 25/08/1867)

Virtually all the electricity we use worldwide is based on an application of the law electromagnetic induction, which Faraday discovered.

Faraday had no formal scientific education and his mathematical ability was very limited- however he was an exceptionally gifted experimental scientist.

Figure 1 Uses of Electricity

Figure 1 Uses of Electricity

 

Some examples of the use of electrical power- all depend on applications Faraday's law of electromagnetic induction.

Every time an electric light is turned on it uses power generated by an electrical generator.

All the lighting in a modern city, street lights, domestic lights and lights in large buildings are supplied by electrical generators.

 

Electrical power can be used to generate heat.

Electrical kettles, electric fires, electrical central heating all use power generated by power stations.

 

Modern factories are totally dependent on electrical power.

All industrialized nations could not have developed without the wide scale availability of electrical power.

 

All the above examples, and many more, utilise the electricity produced by generators designed using the principles discovered by Faraday.

Now a days, electricity is produced in large power stations that house several electrical generators which supply electricity to the national grid.

A Photograph of a Modern Electrical Generator

A Photograph of a Modern Electrical Generator

The generator shown is one of several in a large power station in the UK.

The power station supplies about 7% of all the power used in the UK.

The generators work on the principles of electromagnetic induction.

The generator design is based on the simple generator discovered by Faraday.

Faraday used a very simple apparatus, a magnet and a loop of wire, to discover electromagnetic induction.

When he moved the wire loop near the magnet he found that a voltage was induced in the loop, while the loop was moving.

A modern electrical generator uses numerous loops made of copper that are made to rotate in a magnetic field.

The voltage generated in the loops is applied to the national grid to supply power to numerous houses, buildings and factories, etc.

When Faraday discovered electromagnetic induction and invented the principles of the electrical generator he had no idea of the impact they would have on the lives of human beings.

Photo by Gordon Neale Brooke via Wikimedia Commons