School Stuff

  High school level educational stuff mainly on astronomy, chemistry, geology

Leonardo of Pisa and Wall Street - beat the stock market with math
Encyclopedia Britannica 1911 - download viewer for the 28 volumes
MIT Physics  -  download viewer for 35 YouTube physics lectures
The speed of Light - how Ole Rømer in 1676 determined this constant
Finding of Helium and "Thors Gruve" - the story of a local mine Time - about timepieces and how time and distance are connected
GeoGebra - free geometry and algebra software widely used in schools
Linear and exponential growth - flight movements on major airport as example
Math at McDonalds - parabola or catenary?
Jmol Java applet demo - explore a DNA molecule with the free Jmol viewer
LyX Document Processor - alternative word processor for pro reports  Black stones - about some pebbles picked on a Sunday walk
Armchair astronomy - travel in time from the comfort of your best chair
Yacas - "old school" advanced Java calculator / CAS from the Yacas team
A visit to Norway - geological expedition in 1879 by two Scottish friends
Multiplication and Division - abacuses and Napiers invention of the logaritm
Astronomy Course - 24 YouTube lectures for non-scientists by Prof. Bailyn Highlights in Calculus - five introductory video lectures by Gilbert Strang
Textbooks - textbooks in PDF format for download
Chemistry lessons - app for viewing 36 professional produced video lectures 
Popular Science - old world DIY projects in biology,chemistry,microscopy
SCCtv - amazingly well done 24/7 online college TV station
Nature - reader for 15 volumes of the journal, hosted by The Internet Archive