Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE scientists ( Name VARCHAR, ssn VARCHAR, scientist VARCHAR )
TABLE: CREATE TABLE AssignedTo ( Name VARCHAR, ssn VARCHAR, scientist VARCHAR )

### Question ###
Find the name of scientists who are not assigned to any project.

### Accurate SQL ###

SELECT Name FROM scientists WHERE NOT ssn IN (SELECT scientist FROM AssignedTo)