Dr.Overy’s Science Knowledgebase is now open at …..

www.globalmatters.org/topics

Here is a useful resource, developed by Anup Shah.  The website looks into global issues that affect everyone and it aims to show how most issues are inter-related…….
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How do we define alternative energy ?

It is usually associated with a source of energy which is renewable.  We can regard a renewable energy source as having an unlimited supply of energy , since it is constantly being replenished as we convert the energy into other forms .

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What is the origin of spectacular sunsets?  Have you ever wondered why sunsets can be such a powerful combination of red, orange and yellow colours?

There is some science related to this phenomenon.  The starting point is to remember that white light from the Sun consists of a range of wavelengths.

Each wavelength corresponds to a colour, and it is the impact of the wavelength on the retina of the eye which gives the sensation of  colour .

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How could the complex human eye have evolved through natural selection acting o­n small variations?

 The complex structure and mechanism of the eye is often the focus of attack by those wishing to invoke the ‘intelligent design’ argument.  The critics argue that something so complex as the eye could not have possibly be the result of random mutations and natural selection. They argue that none of the individual components of the eye enables vision to be possible.  

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Mind mapping software is used to create diagrams of relationships between ideas or other pieces of information. A concept map is a special form of a web diagram for exploring knowledge and gathering and sharing information

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