SPECTRUMS: ELECTRO-MAGNETIC, by Casey Cripe
I NEED THIS FOR MY CLASSROOM!!!!! Science!!!
Simple equations explaining laws of physics
Ten Equations that changed the world. (You once told me that some day you wanted me to tell you all about science and engineering. How long have you got? It's all so fascinating and we take it too much for granted.)
The Most Important Developments In Human History
Timeline of World History Well, this is the most exciting part of my day.
The Histomap - Four Thousand Years of World History by John B. Sparks and Rand…
The History of Energy: An Illustrated Timeline
This visualization shows a timeline for the history of our planet earth.
timeline-of-world-history-poster Available for purchase.