STEM CELLS We hear a lot about stem cells these days, but what are they, where do they come from and what do we really know about them? Inside our bodies there's a microscopic world, busy and...
It all started with a big bang. Wait, we don't have to go back that far. The earth was formed 4.5 billion years ago. No, still too far. Try this. It's the middle ages. People in...
Let's do some Q&A, we still have about half an hour for Q&A session. You can ask me to clarify something if it didn't make sense to you, Something in the video - what...