What part of you is only 1% to 3% of your body's mass, yet uses 20% of all the oxygen you breathe?

Your brain!

Here are ten more brain facts:-

by M.S. Rochell

Many people today are trying to save money on their energy bills and one of the more popular ways is through using solar energy. How does solar energy work?

Energy from the sun in the form of heat and light is abundantly available to everyone on Earth, even in places that do not get a lot of a sun. Did you know that the Earth receives more energy from the sun in an hour than our entire population can use in an entire year? With all that clean, renewable energy that is coming from the sun every day, it is worthwhile to figure out a way to use it.

Smartphones: A Splendid Way to Improve Your English

Doing things the digital way certainly makes learning a whole lot easier these days. At your disposal, any time, anywhere are convenient devices for staying in touch with others and getting work accomplished. Smartphones are finding increasing use as tools for obtaining information and gaining knowledge on diverse topics.

No longer are mobile phones simply devices for making and receiving phone calls. No longer are the plethora of personal digital assistants only for organizing data, and hence your life. Today, smartphones combine the best features of both these devices and then add much more.

Volcanoes

Volcanoes have been in the news a lot recently, one volcano in particular located in Iceland at the Eyjafjallajökull glacier, which brought Europe's air travel to a halt.  But what is a volcano?  I'm going to try and explain them, but don't forget I'm not a volcanologist.  Volcanology is the study of volcanoes.

The first thing you have to understand is the structure of the earth, there are three layers:-

1. The Crust: The crust is the outer layer of Earth. It is made up of plates about 18 miles thick, these plates sometimes move. It is the bit we live on.
2. The Mantle: The second layer is called the mantle. It is about 1,800 miles thick.
3. The Core: The inner layer is called the core.

Between the Earth's crust and the mantle is a substance called magma which is made of rock and gases.  When plates on the surface collide, one plate slides on top of the other, the one beneath is pushed down.  Magma is squeezed up between the plates.