The article proposes a reflection on science communication and on the communicative processes characteristic to the production of new-found knowledge. It aims to outline the role that sociology can play within this frame for greater understanding. The article first defines the main evolutionary trends in scientific research in recent decades, with particular reference to the emergence of new social actors. Following on from this, it will look at some of the epistemological conditions that may strengthen the sociologist's role in the cognition of scientific production. Using this as a premise, we will look at a typology for science communication and its components, as well as some of its governing principles. The conclusion of the article indicates the added value that can be gained from the use of such a model, with the particular aim of identifying indicators that allow the evaluation of scientific research in sociological terms as well as those already in existence.

Science and technology: these are the mainstays China wants to concentrate on in order to stabilise its future as an emerging world power. Beijing plans to have the whole, enormous Chinese population literate in the scientific field within a few years. Scientific popularization is the key to what now, due to political influences and deep social disparities, seems remote.

Nowadays, India is experiencing a widespread diffusion of science communication activities. Public institutions, non-governmental organisations and a number of associations are busy spreading scientific knowledge not only via traditional media but also through specific forms of interaction with a varied public. This report aims to provide a historical overview of the diffusion of science communication in India, illustrating its current development and its future prospects.

In 1995, journalist Dava Sobel's Longitude caused an earthquake in the history of science community. The present article analyses how only recently historians of science have fully realized the novelty the book represented. In the meantime, the international success of popular books by journalists on the history of science has become a well-known phenomenon. The author suggests that the huge publishing success of Sobel's book ­ the "Sobel Effect" ­ has provoked three main kinds of reaction among historians: rejection, detachment, and imitation. Which of the three strategies is the best, for both public and authors?

Many lives could have been saved on 26 December 2004, when the tsunami unleashed by an earthquake of magnitude 9.0 off the coast of the Indonesian island Sumatra struck a dozen coastal villages along the Indian Ocean. Those lives could have been saved if, on that day, science communication had not resulted in a complete failure to communicate scientific information adequately in many cases, in different places and at different levels. A long time passed between the violent shock and the devastation caused by the tsunami waves ­ in most cases, many hours.