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This program can be used in the secondary school to study the Pythagorean theorem and look at some of his practical applications. It shows also an algebric demonstration.

Easy to follow instructions with images, of how to make new things of old things and trash, for young pupils. You don't even have to know English to understand the instructions. Hopefully interesting for technology, maths, physics and crafts …

Fundamental changes in seawater chemistry are occurring throughout the world's oceans. Since the beginning of the industrial revolution, the release of carbon dioxide (CO2) from humankind's industrial and agricultural activities has increased the …

Toporopa is meant for everyone who wants to know more about Europe. This includes scholars who study geography, adults who want to test their knowledge and seniors who want to keep their brains fit.

The origin and use of the Horizon System - coordinate …

Tripline is a web service where you can plan a trip and comments, text and photos, to each place. Like that you can tell a story and save at tripline. You have more options then use balloons in Google Maps. You can share your maps and you can also …

This site is part of NASA The Gateway to Astronaut Photography of Earth website.

It's a simple quiz where we see a satellite image and we have to choose between three possible locations.

Interactive animation of two-stroke internal combustion engine used when teaching physics at the elementary school, middle school or the teaching of technical subjects at secondary school.

A site focusec on thr french revolution and deals with contempotary cartoons and paintings good for analysis.

An interesting online application that allows you to create mind maps directly in a Web browser, quickly and conveniently. It offers a set of maps from the appearance of colors, fonts, through to the second line. Everything is simple and fast. …