Tina YoungPARTPARTTWOPARTTHREEPARTONE1928190519461990a.a lucky accidentb.team workc.different scientists hard workd.inspiration adbcPARTONEIt showed how a small piece of mass could produce an unbelievable amount of energyPenicillin was being mass-produced and helping to save the lives of millions.improve the accuracy and speedcomputers all over the world could communicate with each other.PARTONEtransitionIt serves as a conntection link between the preceding and the following.PARTONEQualityThinkingWhat should we learn from the pioneers？Thanks for watching
