Holding: The test: So long as the state’s use of its eminent domain power is “rationally related” to a conceivable public purpose the public use requirement is satisfied. As with any other state conduct sought to be justified as an exercise of the police power, all that was required was that the legislature “rationally could have believed” that the act would promote a legitimate objective, the scheme here easily passed this test. The “public use” requirement is thus coterminous with the scope of a sovereign’s police powers.
–    Can have public use even though there is a transfer from one individual to another.
-Eminent domain and the scope of police power are coterminous.