Few research studies have been conducted on the interpreter’s role in a Science Centre. Although the importance of this role is always stressed by museum practitioners, it seems that anecdotal evidence is the main source of information on this theme. The experience of a visitor in a Science Centre as well as in other museums has, among other things, well defined social dimensions. These dimensions are crucial in determining the quality and enjoyment of a visitor’s experience. There is evidence that suggests visitors go to a museum to meet others. Among the people that visitors meet in a Science Centre are interpreters, who help them not only to use and understand the exhibits but also to become familiar with a new environment. The following sections will illustrate what research studies say about interpreters, considering their twofold relation with visitors and exhibit developers.

A review of two books recently published by Vieira & Lent, by the Casa da Ciência (House of Science) and by the Oswaldo Cruz Museu da Vida (Life Museum, Cruz/Fiocruz), "O Pequeno Cientista Amador – a divulgação científica e o público infantil", and "Terra Incógnita – a interface entre ciência e público" ("The Young Amateur Scientist - scientific divulgation and the youthful public", and "Unknown Land – the interface between science and the public") is presented.

This study presents the results of a qualitative analysis based on 13 crime news articles from Italian newspapers, to show that the belief that mental disorder predisposes many of those suffering from it to behave violently has endured, though the 180 bill was passed 25 years ago. Although the question has already been addressed by social psychologists and psychiatrists, it has not been discussed in great detail by science communication. However, this considers crime articles in newspapers as very interesting examples of indirect communication on health issues, where common belief prevails. The articles analyzed were about two matricides dating back to 1972 and 2001 respectively. The analysis showed that the belief that people with mental illnesses are recognizable, antisocial, can behave violently and cannot recover, has endured over many years. Nevertheless, statements about people with mental disorders are more accurate and the idea that the risk of violence among released mental patients is predictable, has been set aside.

Hiša Eksperimentov (The House of Experiments) is a very small science centre. We are situated in the centre of Ljubljana, the capital of Slovenia. The gross area of the centre is only 500 square meters and we meet around 25,000 visitors per year. We were opened for the public in the year 2000. In the Hiša Eksperimentov there are four full-time employees and around 10 persons working and paid by fees. There are specific institutions present in Slovenia so called Student services. They help students in finding paid job on daily basis. The state still encourages students to work by lowering the taxes for their job. There are around 25 students working as explainers in Hiša. Here are some facts about Slovenia. The population is around 2 million in the area of 20,256 square kilometers. There are 18 students per 1000 inhabitants. One can play a game with numbers – taking into account the area of Hiša and the population and area of Slovenia one can calculate that there is one person expected in an area of the size of 20 science centers. And there are even much fewer students present in the same area. But the number of visitors and students working in the center proves the density is larger. Therefore science centers do concentrate the population!

Heureka is situated in the Helsinki Metropolitan area. Every year, on average, 300.000 visitors come to Heureka; it is one of the largest year-round attractions in the area. 20–25% of the visitors are school classes. Heureka has a main exhibition including Children’s Heureka and also always houses two temporary exhibitions. Special activities supplement the exhibitions: The Verne Theatre, Children’s Laboratory, The Open Laboratory, Science Theatre Minerva and the Basketball Rats.

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