We have some books on these topics in the library; do a keyword search for the specific inventions you are looking for; unfortunately, we do not have many Spanish resources.  Please check our resources in the Reference Room, as well as the school encyclopedias for general information. Finally, you can look at our online resources, including Britannica 2000, and Worldbook 2000.

When looking for information on the net, please check Yahoo! first, using the same search terms above.  This sites organization and "hand-picked" links will be your best resource.  In fact, many of the links below are directly from a simple search at Yahoo!

As always, if you need any help, please see me..