Database: scientist_1
Question: Find the SSN and name of scientists who are assigned to the project with the longest 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)