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)

Moraine Lake is a glacially-fed lake in Banff National Park, 14 kilometres (8.7 mi) outside the Village of Lake Louise, Alberta, Canada. It is situated in the Valley of the Ten Peaks, at an elevation of approximately 6,183 feet (1,885 m). The lake has a surface area of .5 square kilometres (0.19 sq mi). The lake, being glacially fed, does not reach its crest until mid to late June. When it is full, it reflects a distinct shade of blue. The colour is due to the refraction of light off the rock flour deposited in the lake on a continual basis.

Tibetan monks create an intricate picture made from coloured sand at St. Mungo Museum of Religious Life and Art on November 23, 2011 in Glasgow, Scotland. The monks, from the Panchen Lama's Monastery, are creating a Sand Mandala as part of a Tantric Buddhist ritual, invoking the presence of the Buddha in a design representing the palace of the deities. (Photo by Jeff J Mitchell/Getty Images)

Looking for love by Tony Wu, USA. Highly commended, Animal Portraits. “Accentuating his mature appearance with pastel colours, protruding lips and an outstanding pink forehead, this Asian sheepshead wrasse sets out to impress females and see off rivals, which he will head-butt and bite, near Japan’s remote Sado Island. Individuals start out as females, and when they reach a certain age and size – up to a metre (more than 3 feet) long – can transform into males. Long-lived and slow-growing, the species is intrinsically vulnerable to overfishing”. (Photo by Tony Wu/2018 Wildlife Photographer of the Year)

Several new species of peacock spider – just a few millimetres long and featuring extraordinary colours – have been discovered in Western Australia and South Australia. Jürgen Otto, a biologist from Sydney, has been researching the arachnids since 2005, and has gained a significant following online with his footage. He believes there are now 48 confirmed species of peacock spider within the Maratus genus, found across Australia but particularly in Western Australia – and many more awaiting confirmation. Here: Maratus Tasmanicus, one of seven new species of peacock spiders studied by the Sydney biologist Jürgen Otto. (Photo by Jürgen Otto)

Chinese artist Kong Ning walks in her costume made of hundreds of orange plastic blowing horns during her art performance raising awareness of the hazardous smog in front of the Drum tower in a historical part of Beijing on a very polluted day December 7, 2015. Kong, whose works include themes related to China's air pollution problem, named her new performance “The Orange Horns Bride Marries the Blue Sky” and presented it dressed in orange, the colour of the second highest pollution alert level issued again in Beijing as hazardous smog blankets the capital. (Photo by Damir Sagolj/Reuters)

I was born in Calella (Barcelona) in 1956, and nowadays I live in Vilassar de Mar (Barcelona). Since I was a child I have been fascinated by painting and I think I'm a self-taught painter because, despite I was taught drawing at Primary School, I have acquired my knowledge thanks to my environment. Painting is my own way to express myself. I can shape my inward in the canvas with the essential help of the palette knife and the colours. As a nature’s lover and great observant, my environment has always been my source of inspiration. At present I devote myself exclusively to painting, my true passion, and that is why I feel extremely fortunate.

“Henri Marie Raymond de Toulouse-Lautrec-Monfa or simply Henri de Toulouse-Lautrec (24 November 1864 – 9 September 1901) was a French painter, printmaker, draughtsman, and illustrator, whose immersion in the colourful and theatrical life of fin de siècle Paris yielded an œuvre of exciting, elegant and provocative images of the modern and sometimes decadent life of those times. Toulouse-Lautrec is known along with Cézanne, Van Gogh, and Gauguin as one of the greatest painters of the Post-Impressionist period. In a 2005 auction at Christie's auction house a new record was set when “La blanchisseuse”, an early painting of a young laundress, sold for $22.4 million U.S” – Wikipedia.

Photo: Full-length portrait of French artist Henri Toulouse-Lautrec wearing an overcoat, a bowler hat, and pince-nez eyeglasses while holding a cane. (Photo by Hulton Archive/Getty Images). Circa 1895