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 Before the Copyright Act of 1976 became effective on 1 Jan 1978, unpublished works were.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.
1.1 What is copyright? In Australia, copyright law is contained in the Commonwealth Copyright Act 1968 (Copyright Act). A simple definition of copyright is that it is a bunch of rights in certain creative works such as text, artistic works, music, computer programs, sound recordings and films.