Today we will talk about the extraordinary U.S. Tier 4 Medium Tank, the M3 Lee. This tank received its name in honor of the American Civil War General, Robert E. Lee. It was designed in 1940 and was...
[Morgan Freeman] So. What are we really made of? Dig deep inside the atom and you'll find tiny particles held together by invisible forces. (held together by invisible forces.) Everything is made up...