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A reader asked what tools I used to produce the Interactive Mathematics site.

Here’s a guy who is actually a cyborg – his normal functioning depends on the computer implanted in his shoulder.

Inflation is a concern all over the world right now, but some countries are experiencing uncontrolled hyperinflation. What does hyperinflation mean and what does it look like?

Google’s handy calculator doesn’t always get it right, even with simple subtraction.

Water shortages across the world are adding to the food crisis.

Have we reached “peakwater” yet? This video examines the issue.

Avaaz.org now has over 3 million people on board the “people-powered global movement”. Their latest report on their of global online campaigns is quite impressive.

There are 2 movies this week. The first explains what math rock is all about and the second is a math rock song that involves the Fibonacci sequence.

Randy Pausch delivers an inspiring lecture on the story of his Entertainment Technology Center at Carnegie Mellon University.

Randy knew that he only had months to live when he delivered this lecture.

In this Newsletter:

1. Finding Square Roots – without a calculator
2. The Story of Rene Descartes
3. From the math blog
4. Math Study Tip – Time

I received a delightful mail today from a lady who lives on an isolated island off Europe. She finds Interactive Mathematics a really valuable resource for teaching her daughter mathematics and for escaping the poverty trap.