Wind tunnel test on a model aircraft using fluorescent oil to highlight the flow patterns.
Image Credit: NASA Langley/Preston Martin
Specially made waterproof LED lights are attached to the base of paddle boards which illuminate the water below allowing the paddlers to see fish otherwise invisible in the darkness.
Sesuit Harbor, Dennis, Massachusetts.
Photograph by Julia Cumes
According to legend, celestial forces gave Five Colored Pond its hues. Here the Tibetan goddess Semo stopped to wash her face, and her cosmetics forever pigmented this pool.
Photograph by Michael Yamashita
After losing their boats and houses in the Typhoon Haiyan, fishermen of a destroyed village in Tanauan started building two-seated boats made of abandoned refrigerators and some wood. The first boat was made by a fisherman, whose children gave him the idea as they wanted to play in it, and soon others followed.
The Philippines and international armed forces and aid agencies are struggling to get help to devastated areas due to the extent of the destruction from Typhoon Haiyan, which has left more than 4,000 dead and 4 million people displaced.
Photographs by Damir Sagolj
Artwork of the week
The Rettungsring, 2008
The RETTUNGSRING (lifesaver) is designed as an experimental feature to bring together air and water. The RETTUNGSRING was placed on the ‘Island of Youth’ in Berlin, semi-floating on the Spree River. Once inside the structure, the visitor enjoyed the full experience of walking, sitting and relaxing on the water.
Hail swath (the narrow zones where hail accumulates on the ground in association with thunderstorm activity) near Airdrie, Alberta, in July 2013.
July 1, 1958 is remembered as Inundation Day in the region near Cornwall, Ontario. At 08:00 a controlled explosion tore open a cofferdam and four days later an area that had been home to 7,500 people disappeared under the waves of Lake St. Lawrence, part of the newly created St. Lawrence Seaway.
The development of thre zebra mussel – an unintended consequence of the Seaway – has clarified the water making the flooded villages visible once more.
Photographer Louis Helbig is archiving aerial views of these lost Canadian villageson his website Sunken Villages.
This map, created from observations by the twin GRACE satellites, shows how fresh water storage in the USA have changed between 2003 and 2012.
“Groundwater reserves, the traditional backup for water supplies during extended periods of drought, are in decline globally. The contrast in precipitation between wet and dry regions and between wet and dry seasons will increase so places that now rely on groundwater because they are dry will need groundwater even more in the future.” (source).
Artist Eben Goff exposed the detritus filled waterways of Los Angeles by bolting metal frame onto the bed of the channelised Ballona Creek, in southwestern los angeles county. The constructions caught hold of floating matter that passed by for a week.
Zak Noyle was shooting surfer Dede Surinaya in a remote bay in Indonesia when they discovered the water to be covered in garbage. The bay was miles from any town, yet strong currents had carried the trash of the world’s most populated island, Java, to its once pure waters.
Some of the population centers in indonesia have little to no trash collection infrastructure, leading locals to dispose of their waste in the street or in river beds, after which it inevitably is washed out to sea.