It's called the reformatory movement...:)
Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect. Visible light waves consist of different wavelengths.
he used his rifle as a club and his knife to do it
It would be the "Wagner Act" that allowed labor unions to participate in collective bargaining with business managers, since this was signed by FDR and was thought to be more fair to the individual workers.