JavaScript:Science&Engineering Diagrams Programming

You know any good book about : JavaScript:Science&Engineering Programming Diagrams ?
The Science&Engineering diagrams on http://science-ebooks.com/ made via JavaScript ?
Are they difficult to develop with JavaScript ?
Do you know any JavaScript Tutorials online (in pdf mainly free) about : JavaScript:Science&Engineering Diagrams Programming ?

well the page I viewed used an animated gif

<img border="0" src="http://www.science-ebooks.com/phy/images/EngF0A.gif" width="790" height="475">

How I made such "animated gif" ? May use javascript from these ?

The questions you are asking indicate that you will have along learing curve.

animated gifs are mage up of a number of images.

Javascript can do this but speed can become an issue.

also shapes can be drawn and animated with javscript.

code complexity and size become issues as well as speed.

the page I used featured dials.

have a look at
http://www.vicsjavascripts.org.uk/AnalogueDial/AnalogueDial.htm

to guage the complexity

but I think that Java or Flash may be better tools