Alfred Wegner and Continental Drift

Perhaps the preeminent symbol of Christmas is the Christmas tree. Christmas trees aren’t just a symbol of Christmas; the act of setting up a tree is an event, and the adornment of a tree often uses ornaments that have been passed down for generations. But why is cutting down an e ...  Show more

Abraham Maslow’s hierarchy of needs is one of the best-known theories in psychology. First introduced in 1943, the theory posits that people have an innate desire to reach their maximum potential, but to achieve this goal, they must first have their basic needs met. These needs c ...  Show more

Just looking at a world map makes it clear that today's continents were once a single mass, but scientists are still researching how they came together and apart. Learn about the history of the Southern Hemisphere's continents in this episode of BrainStuff. Learn more about your ...  Show more

In the 1760’s a clever, young, ambitious Scotsman named Alexander Dalrymple began advocating a theory as to the existence of a great southern continent. The idea of a landmass that would counterbalance the known world had long been the stuff of legend. Now Dalrymple wanted to pro ...  Show more

This talk is on Antarctica, one of the seven continents. It contains the geographic South Pole, and is situated in the Antarctic region of the Southern Hemisphere. It is the fifth largest continent, bigger than Australia and Europe. When you think of this place, what comes to you ...  Show more

Melvyn Bragg and guests discuss how the science of plate tectonics revolutionised our understanding of the planet on which we live. America is getting further away from Europe. This is not a political statement but a geological fact. Just as the Pacific is getting smaller, the Re ...  Show more