Everything in the universe, from galaxies to the atoms in your body, is driven by just a few fundamental forces.
It took centuries for physicists to identify these forces, but once identified, they believed that some of these forces were merely different manifestations of the same underlying phenomenon.
Once they realized this, some physicists felt that ... Show More
May 14
565. The Great Northern War: Revenge of the Cossacks (Part 2)
After establishing the city of St Petersburg, what was Peter the Great’s next step in his titanic struggle against Charles XII of Sweden, for mastery of northern and eastern Europe? What drastic, brutal action did he take against Poland, to slow the Swedish advance into his terri ... Show More
1h 9m
Apr 7
History's Greatest Cities | Season 4
How did the world’s greatest cities become just that – great? Was it location, determination or simple serendipity? This is the question behind History’s Greatest Cities, from HistoryExtra. Join travel writer and history buff Paul Bloomfield for the latest series, as he ventures ... Show More
1m 2s