the birth of a new generation set in motion a whole series of changes , from the building of schools to the arrival of teachers , pediatricians and candy shop owners , but the kids really did n't stay within boundaries , intensely curious , and learned by watching the civil engineering team how to build roads and move terrain , or by following the weather teams how to record temperature and humidity readings , or by chasing after sister joseph while she was checking on the health of the live stock what it took to be a veterinarian .