A  Science and Technology Odyssey In Cyberspace-Time 
20000 BC to 1800 AD
An Ebook for the Entire Family from Science-Ebooks.com
To link to my other free eBooks select one of the following
    Select Physics Topics   Electronic Troubleshooting   Basic Electronics  Gif Circuits 
Science Ebooks Ezine   Free Java Script Catalog with Applets and Games

Free  Talking eBooks for Middle School Students  Talking books now available include the soundtrack for this site and the history of guns from Middle Ages to present.

Title Page

20000BC-301BC

300BC-1499AD

1500 - 1699

1700 - 1800

Back to Timeline 300 B.C. thru 1499 A.D

Optics

"The modern reinvention of spectacles occurred around 1280-1285 in Florence, Italy. While it's uncertain who the inventor was, it is quite clear that spectacles quickly took hold into common use in that city, and use of them spread outward to the rest of the known world in just a few years. Considering the large percentage of people with visual problems, it's not difficult to understand why there was such enthusiasm." From: Early History of the Lens

Marie Curie's Search for Radium (Science...

  To see more pictures search at  http://www.fotosearch.com/ Right click and open in new Window.