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O congresso internacional Lights On… Cultural Heritage and Museums! irá realizar-se na Universidade do Porto entre 20 e 22 de Julho de 2015. Organização da Universidade do Porto.****Facing serious times of change, museums and other cultural institutions, discuss and reflect, in a deeply and interdisciplinary way, about their role in resilience, sustainability and quality of life of the twenty-first century society.The XXI century is seen as the Century of Light, as light and light-based technologies are recognized as major economic drivers with the potential to revolutionize it. In that sense, UNESCO proclaimed 2015 the International Year of Light (IYL2015, AIL2015), also “Noting that 2015 coincides with the anniversaries of a series of important milestones in the history of the science of light, including the works on optics by Ibn Al-Haytham in 1015, the notion of light as a wave proposed by Fresnel in 1815, the electromagnetic theory of light propagation proposed by Maxwell in 1865, Einstein’s theory of the photoelectric effect in 1905 and of the embedding of light in cosmology through general relativity in 1915, the discovery of the cosmic microwave background by Penzias and Wilson and Kao’s achievements concerning the transmission of light in fibres for optical communication, both in 1965” (United Nations, A/RES/68/221, 2014).Such revolution happens and has significant impact on cultural heritage and museums. Aware of the process, this congress joins the international initiatives on the IYL2015, and adopts the concept of light in its broader meaning, that is, not only the form of energy associated with the visible portion of the electromagnetic spectrum, but also all other invisible radiation such as X-rays, ultraviolet, infrared, among many. It aims to raise and enhance awareness for its potential and crucial role in cultural heritage and in inclusive museums.Assuming a multi and interdisciplinary character, we are sure that it will strengthen the cooperation bonds between professional, scientific and educational communities and provide a platform for sharing experiences and knowledge about important scientific and technological advances in the field, featuring Thematic Sessions, with Plenary Lectures and Oral Presentations, Poster Session and Workshops. The official language will be English and the focus will be on the following topics:1. Science of vision. The perception of colour as a function of illumination2. Lighting systems in museums / historical buildings / monuments. Requirements and scientific and technological developments3. Built environment. Solutions. Energy resources and sustainability4. Study and safeguard of heritage associated with the production of energy and electric lighting5. Scientific examination of heritage and analytical applications using different radiation. Research oni. Materials, technologies, functions and producersii. Alteration processes and diagnosis6. Technologies of communication and mediation7. Curative conservation and restoration8. Integrated risk management. Preventive conservation****Mais informações em: https://lightsonchm.wordpress.com