Radon is a dangerous gas. It is colorless and odorless and is always being emitted from our planet-don't worry, it's not enough to harm you.
Copyright for published works in the USA has been according to a federal copyright statute, since the first U.S. copyright statute in the year 1790. Before the Copyright Act of 1976 became effective on 1 Jan 1978, unpublished works were. protected by state law, known as common-law copyright.
What is Copyright? Copyright ownership gives the owner the exclusive right to use the work, with some exceptions. When a person creates an original work, fixed in a tangible medium, he or she automatically owns copyright to the work. Many types of works are eligible for copyright protection, for example: Audiovisual works, such as TV shows, movies, and online videos.