Database: scientist_1
Question: What are the SSN and names of scientists working on the project with the maximum 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)