Archive for February, 2008

This movie is a good demonstration of powers of 10 and scientific notation.

An Australian invention shows great promise in extracting water from the air using an efficient windmill and a condenser based on the African stenocara beetle.

Kansai University researchers have developed a "laughing scale", using the "aH" unit.

This is evidence of wind passing over a mountain range and creating a standing sine wave on the leeward side.

A comparison of Google and Yahoo search results refutes the claim that Yahoo draws more younger searchers.

In this Newsletter

1. Changes to the IntMath Newsletter
2. Real life math example - CO2 levels in the atmosphere
3. This month’s math tips - Divisibility
4. Poll Results
5. More from the math blog

Here's a satisfactory attempt to model the Earth's increase in CO2 concentration, using Excel and Scientific Notebook.

The abacus is still widely used in Japan. It's one method of making math more kinesthetic - and it's often faster than a calculator.

A reader from the African country of Cameroon has written some interesting things about life in Cameroon and studying for an engineering degree without an engineering school in the whole country.

A reader asks for some suggestions for stimulating math books to inspire a friend.