Dave is Scientist and Roboticist .
Dave came on a stage all cheerful aand happy and started talking about his childhood. How there were three major professions in his home .And how he was drawn to Space . but because of bad eye sight he could only see it trough camera .As he could not go in space .This is how it all started .
It was incredible that he was here.
The best part was , when after the speech he did not disappear. He was sitting with all the students and teachers .Simply having a chat .During lunch ,tea breaks and other free time .
At last an event where speakers in the reach to us .
There is so much you can learn about NASA missions and Dave