Interesting Links

The definitions of the SI units can be found at this site maintained by the National Institute of Standards and Technology (the agency that used to be called the National Bureau of Standards).

Here is an easy to use and (mostly) accurate unit converter. I have found it to be quite useful.

A brief tutorial on scientific notation.


Newton's three laws of motion


Kepler's Laws animated

This site has a very interesting and fun interactive function plotter.

A great practice tool for vectors!

Here is a site that discusses the whys and hows of making an egg stand on its end. In brief: It has nothing to do with the equnionxes or solstices!

I like buying toys from these folks. That's not an official endorsement, but they've got cool stuff!

Galileo's Final Gesture