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But it took a long time for solar sails to go from concept to reality. The first successful demonstration of the propulsion system didn't come until 2010, when Japan's Ikaros probe deployed its 46-foot-wide (14 m) sail and became the first craft ever to cruise through space on the backs of photons.

The $27 million Sunjammer mission, which takes its name from the Arthur C. Clarke story, will use a sail built by California-based company L'Garde that measures 124 feet (38 m) on a side. The sail, made of an advanced material called Kapton, is just 5 microns (about 0.0002 inches) thick. It weighs less than 70 pounds (32 kilograms) and packs down to the size of a dishwasher, NASA officials have said.

rites observes that the majority of YA novels about gay and lesbian teens "are very Foucaultian in their tendency to privilege the discourse of homosexuality over the physical sexual acts of gay men, defining homosexuality more rhetorically than physically" (102-03).

Star Trek is widely considered to be the first "modern" fandom, and the majority of studies of participatory media fandom begin their history with Trek fans. However, activities that could be called "fannish" go back much further, and include eighteenthcentury unauthorized sequels of works such as Gulliver's Travels, the aforementioned Sherlock Holmes pastiches, and the entire body of literary and folk "retellings." See Brewer, Pflieger, Derecho, and Stasi.

According to Francesca Coppa, the Internet enabled "an increasingly customizable fannish experience" (54). As a result, "[a]rguably, this may be fandom's postmodern moment, where the rules are 'there ain't no rules' and traditions are made to be broken" (57).

"Simulacra and Simulation" breaks the sign-order into 4 stages: The first stage is a faithful image/copy, where we believe, and it may even be correct, that a sign is a "reflection of a profound reality" (pg 6), this is a good appearance, in what Baudrillard called "the sacramental order". The second stage is perversion of reality, this is where we come to believe the sign to be an unfaithful copy, which "masks and denatures" reality as an "evil appearance—it is of the order of maleficence". Here, signs and images do not faithfully reveal reality to us, but can hint at the existence of an obscure reality which the sign itself is incapable of encapsulating. The third stage masks the absence of a profound reality, where the simulacrum pretends to be a faithful copy, but it is a copy with no original. Signs and images claim to represent something real, but no representation is taking place and arbitrary images are merely suggested as things which they have no relationship to. Baudrillard calls this the "order of sorcery", a regime of semantic algebra where all human meaning is conjured artificially to appear as a reference to the (increasingly) hermetic truth. The fourth stage is pure simulation, in which the simulacrum has no relationship to any reality whatsoever. Here, signs merely reflect other signs and any claim to reality on the part of images or signs is only of the order of other such claims. This is a regime of total equivalency, where cultural products need no longer even pretend to be real in a naïve sense, because the experiences of consumers' lives are so predominantly artificial that even claims to reality are expected to be phrased in artificial, "hyperreal" terms. Any naïve pretension to reality as such is perceived as bereft of critical self-awareness, and thus as oversentimental.