An invitational environment is an environment in which the speaker's primary goal is to convince as many audience members as possible to agree with his or her position

Television signals ricochet off the upper atmosphere and follow the curvature of the earth

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After a copyright eventually expires and the work falls into the public domain, anyone may reproduce or distribute the work under a long-established legal principle that the U.S. Supreme Court reaffirmed in the 2003 case of:

a) Sony v. Universal City Studios; b) Dastar v. Twentieth Century Fox Film Corp.; c) Moseley v. V Secret Catalogue; d) International News Service v. Associated Press; e) 20^th Century Music v. Aiken.