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New Zealand triathletes gave the water at the Olympic venue the thumbs up but failed to make an impact among the front-runners at a Test event at Copacabana Beach.

Rio de Janeiro’s state environmental agency declared some waters near the swimming site unsuitable for bathing on Friday but the worries did not seem to bother most competitors.

The team collected lots of water striders and took videos of their movements so they could analyze what mechanics would be necessary in order to achieve that with a tiny robot. The tiny robots can stay afloat on a water surface as well as move on it by jumping, while all the...

Jorgensen, 29, and True, 33, become the sixth and seventh members of the 2016 U.S. Olympic Team, joining pentathlete Nathan Schrimsher, table tennis player Yue “Jennifer” Wu, and open water swimmers Jordan Wilimovsky, Sean Ryan and Haley Anderson, all of whom...

Researchers were able to mimic a water strider’s water jumping.

Saying that recent stories about raw sewage in Brazilian waterways that will serve as Olympics venues in 2016 helped “wake us up again and put this back on the agenda”, the head of sailing’s world governing body says his group will test for viruses and bacteria...

The other Olympic water venues are under the control of the Rio state environmental agency. In Rio, much of the waste runs through open-air ditches to fetid streams and rivers that feed the Olympic water sites and blight the city’s picture postcard beaches. The Brazilian...

Beyond the major locations of Rio de Janeiro, Sao Paulo, Brasilia and Salvador, Brazil boasts a number of major tourist attractions, ranging from its famous beaches to the natural beauties of the Pantanal wetlands and the Iguazu Falls, as well as the vast Amazon rainforest.

But the stench of raw sewage still greets travelers arriving at Rio’s global airport. “Those kinds of things would be shut down immediately if found here [in the U.S.]”.

The researchers from Seoul National University and Harvard University, studied how water striders (Gerridae) jumped on water, to create a robot that could successfully launch itself from the surface of water.

In some tests, disease-causing viruses measured up to 1.7 million times the level of what would be considered hazardous on a Southern California beach.

When making their spectacular jumps, these insects can produce enough vertical drive to jump from the water, which is a motion that normally requires high momentum. Fortunately, these robots were designed not for surveillance but for science. In order for the robot water strider...

Je-Sung Koh of Seoul National University and his colleagues have copied the awesome water strider to build a robot that can jump on water, without sinking.

“What was very important for us while building the jumping water robot was to make sure that the maximum force does not exceed the maximum surface tension force“, noted Je-Sung Koh in an accompanying video demonstration.

Former chief minister of Goa, Digambar Kamat, has been accused of taking bribes on two occasions, between 2010 and 2011.