Greenhaus Education and Other "Effects"

This will just be a short post today...just some thoughts on a multidisciplinary problem. I am in Edinburgh, Scotland currently...here for the Learning without Frontiers conference in Olympia,UK next week and taking the opportunity to explore prior to the conference. Walked around the city today, which is so beautiful, especially the view from the castle . Just taking in the gorgeous scenery and getting a feel for the incredible history that is here. Quite amazing. As I climbed the hill to the castle, I couldn't help but be awestruck as I looked up the cliff at the intricate stone wall , built right on the edge of these steep rocks. The natural question is, how the heck did they do this so many hundreds of years ago, especially without the convenience of the modern day construction tools? It's really just mind boggling to think of the sheer man power, time, and mathematics that went into constructing this castle. Yes, even on vacation, I have to think about the math! ...