Halliday has demonstrated that changes in discourse function covary with changes in the grammatical resources a language makes available to construe discourse. Specifically, he outlined the ways in which nominalisation evolved as a resource for construing scientific reality as a world of logical relations among abstract entities. In the present article,

In the summer of 2003, a survey was carried out at the At-Bristol Science Centre (UK) to determine the effectiveness of the hands-on activities of "Explore". The section evaluated included 43 interactive experiences divided into two themes. The first, "Get Connected", consisted of examples of the latest digital technologies, such as a television studio, virtual volleyball, and radars. The second, "Curiosity Zone", was dedicated to natural phenomena and subdivided into three additional groups: "Natural Forces" which presented various forces of nature, "Focus on Light", which dealt with the wonder of light, and "Sound Space", reserved for the science of sound. The survey was divided into two phases: the first consisted in observing the public's interaction with the hands-on activities; the second, in consulting the staff. The methods adopted helped determine the effectiveness of the exhibitdesign and the evaluation itself highlighted the role of a promoter of science as an evaluator.

On 16 January 2004, the United Nations Secretary-General and Nobel Peace Prize winner Kofi Annan launched a Global Media Aids Initiative, with the aim of convincing the press, radio, television and Internet to join the fight against what has been called the "forgotten disease of the forgotten continent". Throughout the world, over 40 million people have the Hiv virus. In 2003 there were 5 million new infections and 3 million deaths were caused by Aids.

At the beginning of the new millennium, science is not only a neutral system or an objective methodology of knowledge, but also the implicit basis of the totality of our culture. Though science and its derivates are omnipresent in daily life, its basic ideologies and functional mechanisms are in most cases not fully visible to the subject. In using the most evolved systematical-critical model of psychoanalysis provided by the French thinker Jacques Lacan (1901-1981), an enlightening analysis of western science can be made, which contributes not only to a better understanding of its own psychology, but also of the hidden ties between science and its current socio-cultural background.