|
Horizon: To Infinity and Beyond (2010) #677 Remove 1 hour. BBC. By our third year, most of us will have learned to count. Once we know how, it seems as if there would be nothing to stop us counting forever. But, while infinity might seem like an perfectly innocent idea, keep counting and you enter a paradoxical world where nothing is as it seems. | |
|
Horizon: What Happened Before the Big Bang? (2010) #688 Remove They are the biggest questions that science can possibly ask: where did everything in our universe come from? How did it all begin? For nearly a hundred years, we thought we had the answer - a big bang some 14 billion years ago. |