Ciphers as well as codes are transmitted openly. Everyone can see that they exist. Not so with steganograms.
Steganography is the art and science of communicating in a way which hides the existence of the secret part in that communication. During the Italian Renaissance and the time of the Elizabethan Age in England cryptography was very popular, for political reasons as well as for amusements (see John Dee).
In literature steganography played an important role. Many steganographs of that period have only been deciphered recently like some of the Shakespearean sonnets, which now seem to proof that the actor William Shakespeare was not the author of the famous poems and dramas, but that the latter' name was, and Francis Bacon, or even Francis Tudor, as some ciphers and other sources talk of him as Queen Elisabeth I.'s secret son.
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One kind of steganogram is digital watermarking:
Watermarks protect digital images, videos, but also audio and multimedia products. They are made out of digital signals, put into other digital signals. They try to be invisible on first sight and should be nearly impossible to remove. The process of producing watermarks is to overlay some sort of identifying image over the original image (non-digital watermarks, like on money can be seen by holding the paper against light). Copying the image destroys the watermark, which cannot be copied. Any alteration of the original destroys the watermark, too.
Watermarking is one of the typical inventions of cryptography to assist the biggest content owners, but advertised as something necessary and helpful for everybody. Who in fact gets any advantage out of watermarking? The private user most of the time will not really need it except for small entities of pictures maybe.
But the big enterprises do. There is a tendency to watermark more and more information in the Internet, which until now was considered as free and as a cheap method to receive information. Watermarking could stop this democratic development.
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The idea of hybrid beings between man and non-human entities can be traced back to mythology: mythologies, European and non-European are populated with beings which are both human and non-human, and which, because of this non-humanness, have served as reference points in the human endeavour of understanding what it means to be human. Perhaps "being human" is not even a meaningful phrase without the possibility to identify ourselves also with the negation of humanness, that is, to be human through the very possibility of identification with the non-human.
While in classical mythology, such being were usually between the man and animal kingdoms, or between the human and the divine, the advent of modern technology in the past two centuries has countered any such irrational representations of humanness. The very same supremacy of rationality which deposited the hybrid beings of mythology (and of religion) on the garbage heap of the modern period and which attempted a "pure" understanding of humanness, has also been responsible for the rapid advance of technology and which in turn prepared a "technical" understanding of the human.
The only non-human world which remains beyond the animal and divine worlds is the world of technology. The very attempt of a purist definition of the human ran encountered difficulty; the theories of Darwin and Freud undermined the believe that there was something essentially human in human beings, something that could be defined without references to the non-human.
Early representations of half man - half machine creatures echo the fear of the violent use of machinery, as in wars. Mary Shelley published
What human minds have later dreamed up about - usually hostile - artificial beings has segmented in the literary genre of science fiction. Science fiction seems to have provided the "last" protected zone for the strong emotions and hard values which in standard fiction literature would relegate a story into the realm of kitsch. Violent battles, strong heroes, daring explorations, infinity and solitude, clashes of right and wrong and whatever else makes up the aesthetic repertoire of metaphysics has survived unscathed in science fiction.
However, science fiction also seems to mark the final sequence of pure fiction: the
In the Flesh Machine the
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CNN is a U.S.-TV-enterprise, probably the world's most famous one. Its name has become the symbol for the mass-media, but also the symbol of a power that can decide which news are important for the world and which are not worth talking about. Every message that is published on CNN goes around the world. The Gulf War has been the best example for this until now, when a CNN-reporter was the one person to do the countdown to a war. The moments when he stood on the roof of a hotel in Baghdad and green flashes surrounded him, went around the world.
The Human Genome Project is an international colaborative research project that aims to map the human genome. It's goal is to idenitfy the 100,000 genes of the human DNA as well as to sequence the 3 billion chemical base pairs that make up the DNA. The HGP is designed on an open source basis, i.e. the information that is obtained and stored in databases should, in principle, be available to researchers and businesses all over the world. However, the HGP's work has been challenged by private businesses such as