Luis Hernan was always curious about how wireless technologies like radio are transmitted through the air. So after finishing up his studies in architecture, computer science, and design, Hernan decided to research these invisible signals through a PhD at Newcastle University. Hernan set up a system that turned the wireless signals around him into colourful, ghostlike images using long-exposure photography, allowing people to see the strength of the signals around them. (Photo by Luis Hernan)

Jack Tia Kee Woon is an artist from Singapore. He is famous through his technique of watercolor painting in acrylic environment. His painting style is very light and radiant, where the watercolors add the transparence to the picture, while acrylic make the colors look very deep. One can see the influence of Chinese and Japanese culture on his art.