Hi, My name is Narayan Ramdas Iyer. I am the Director of Raman Science Centre, Nagpur (National Council of Science Museums), India. I was the Curator of National Science Centre, Delhi, India for 21 years before taking up this assignment. I am a postgraduate in electronics with a 26 year experience in Science Centre Management. I write popular science articles and give lectures in science. I also design and fabricate science exhibitions and galleries.