Database: scientist_1
Question: What are the SSN and names of scientists working on the project with the most hours?
SQL:
SELECT T3.ssn ,  T3.name FROM assignedto AS T1 JOIN projects AS T2 ON T1.project  =  T2.code JOIN scientists AS T3 ON T1.scientist  =  T3.SSN WHERE T2.hours  =  (SELECT max(hours) FROM projects)