Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Monday, 2 August 2010

Big Events.....

3.8 Billion Years Ago: The Oldest Rocks Form


Meteorite Example From Oxfords Natural History Museum

Friday, 30 July 2010

Perseid Meteor Shower

On the 11th-14th Aug 2010 there will be a spectacular meteor shower in the Perseus Constellation. It will be seen all around the world. Just look up and use your eyes!


I will be traveling Europe at this time and hope to see it in all the countries that I stay in.  

Here is The New Meteorwatch Trailer http://bit.ly/96rLqJ 


Tuesday, 27 July 2010

One, Two, Three...... Lots

How big does a number have to be before we'll call it a BIG Number? You might think that a hundred is big, or a thousand, or a million. But among some groups of people, before modern ideas about counting spread around the world from Europe, it was possible to count only to three. They had no way to describe any large numbers, except by saying "Lots". their counting system would be "one, two, three, lots". If we counted like this, wouldn't maths be a whole lot easier? However it would be hard to cope with our modern world.

What we mean by a Big Number depends on what we are measuring. A thousand people would be a big crowd, but it would be a very small number of atoms or bacteria. The Big Numbers relate to what they are measuring. Some are bigger than others, but they are all big in their own way.