I found the blackboard when I was wandering through the museum, one rainy afternoon many years ago--which is probably the reason I love it so much; I just stumbled upon it one day.
As I gazed up at it though, it hit me like a wave of light. For one very brief second I suddenly felt and understood the expanse and genius of Einstein's mind--and I mean expanse. It lasted hardly longer than a breath, but in that moment I could feel how far out into the Universe and back again his mind had travelled. It took my breath away and then it was gone.
So, even though I still don't understand one line of the equation, every once in awhile I pop into the museum and pay my respects to the famous blackboard, and the man who left his mark on it and our world.
The History of Science Museum itself is impressive, the world's oldest surviving purpose-built museum. It sits on Broad Street, next to the Sheldonian Theatre and across from Blackwell's bookstore. Admission is free and it's open Tuesday to Sunday, 12 to 5pm. There's also an introductory tour of the museum every Thursday, 2:15-3pm. When you visit, be sure to find the simple, little, wooden blackboard that holds some of the very keys to our understanding of the Universe.