Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Edwin J. Houston
Professor of Physical Geography and Natural Philosophy in the Central High School of Philadelphia; Professor of Physics in the Franklin Institute of the State of Pennsylvania.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Galileo Galilei
Galileo Galilei (15 February 1564 - 8 January 1642) was a Tuscan (Italian) physicist, mathematician, astronomer, and philosopher who played a major role in the scientific revolution. His achievements include improvements to the telescope...