6、talkingwithaproudabouthowskilledtheirgrandsonsoperatethecomputerandsurftheInternet,orthefantastictheInternettriptheywentontheirown----afterthat,theyneverforgettolisttheprivilegeofmodernscienceonebyone,andmakeaconclusionthathowfastthescienceandtechnologydeveloped. No