Posts Tagged ‘Tecnología’


The Copernicus Sentinel-2B satellite takes us over part of the western Netherlands on 16 March, with the capital city of Amsterdam at the centre of the image.

Divided among some 90 islands, Amsterdam has more than 100 km of canals. The city lies about 2 m below sea level – in fact, around a third of the country lies below sea level, making it susceptible to floods. Rising sea waters during periods of bad weather – called storm surges – are kept under control by dams, dikes, floodgates and natural sand dunes.

While we can see the North Sea on the left, the water on the right is part of the Markermeer lake. This area was once a saltwater bay called the Zuiderzee, but was closed off by a dam in the 1930s. The bay was drained in stages and land reclaimed, including Flevoland on the right side of the image – one of the world’s largest artificial islands.

Another relatively recent addition to the Dutch landscape is the neighbourhood of IJburg comprising six artificial islands east of Amsterdam. The first residents moved in only 15 years ago.

Satellites like Sentinel-2 can help to monitor urban expansion. For example, in the upper-right corner we see what looks like an artificial island being built – but this structure is not present in satellite imagery from a year ago.

The meticulously planned landscape seen in most of the image breaks for the coastal dunes along the left. These areas are home to dozens of bird species, as well as deer, squirrels, rabbits and foxes. In one protected area, grazing animals including Highland cattle were introduced to the area.

This image is featured on the Earth from Space video programme.
Id 376891


Web: European Space Agency

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Source: 500px.com/fotodehro


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Source: artoftheautomobile

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Source: gallery.oxcroft

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Source: gallery.oxcroft

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Web:  autoexpress.co.uk

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Nissan Test Drives NASA Space Technology for Use in Driverless Cars


For the past year, NASA’s Ames Research Center in California’s Silicon Valley and automaker Nissan have been collaborating on the development of autonomous driving technologies that could one day be used in future consumer vehicles, robotic rovers on Mars and other space exploration missions.

On Wednesday, January 6, a group of senior executives from the Renault-Nissan Alliance, including Carlos Ghosn, chairman and CEO of Nissan, and Jose Munoz, chairman of Nissan North America, visited Ames for meetings and a showcase of the technical partnership between NASA and Nissan North America. The partnership allows researchers to develop and test autonomy algorithms, concepts, and integrated prototypes for a variety of vehicular transport applications – from rovers to self-driving cars. After briefings, the group observed testing of Nissan’s all-electric LEAF as it performed safe autonomous drives across the center. Drive demonstrations were conducted with the Nissan representatives as well as Ames’ Director Eugene Tu and Associate Director Steven Zornetzer. The Nissan LEAF vehicle is equipped with cameras, sensors and cellular data networking, and uses robotics software originally developed for Ames’ K-10 and K-REX planetary rovers to operate autonomously.

“This is not only a demonstration of the transfer of space technology to industry, but also the application of their research back to our space technology, with additional uses for our unmanned aircraft systems research here at Ames,” said Tu. “This is a perfect example of technology literally driving exploration and enabling future space missions.”


For more information about NASA’s autonomous systems and robotics, visit:


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