Sunday January 19, 2020
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NASA Invented A Tool To Predict Floods Due To Ice Melt

It looks at the Earth's spin and gravitational effects to predict water "redistribution"

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NASA to use Blockchain technology for air traffic management. Pixabay

NASA scientists have developed a tool to forecast which cities are vulnerbale to flooding due to melting of ice in a warming climate.

It looks at the Earth’s spin and gravitational effects to predict how water will be “redistributed” globally, BBC reported.

“This provides, for each city, a picture of which glaciers, ice sheets, (and) ice caps are of specific importance,” the researchers were quoted as saying.

The research, detailed in the journal Science Advances, could provide scientists a way to determine which ice sheets they should be “most worried about”.

The researchers explained that as land ice is lost to the oceans, both the Earth’s gravitational and rotational potentials are perturbed, resulting in strong spatial patterns in sea-level rise (SLR). The pattern of sea-level change has been termed sea-level fingerprints.

“We lack robust forecasting models for future ice changes, which diminishes our ability to use these fingerprints to accurately predict local sea-level (LSL) changes,” the researchers said.

So they set out to determine the exact gradient of sea-level fingerprints with respect to local variations in the ice thickness of all of the world’s ice drainage systems.

NASA
NASA, Flickr

“By exhaustively mapping these fingerprint gradients, we form a new diagnosis tool, henceforth referred to as gradient fingerprint mapping (GFM), that readily allows for improved assessments of future coastal inundation or emergence,” the study said.

The researchers demonstrated that for Antarctica and Greenland, changes in the predictions of inundation at major port cities depend on the location of the drainage system.

For example, in London, local sea-level changes is significantly affected by changes on the western part of the Greenland ice sheet, whereas in New York, such changes are greatly sensitive to changes in the northeastern portions of the ice sheet, the tool showed. (IANS)

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NASA Explore Technology To Build Future Homes Made of Fungi For Moon, Mars

Upon arrival, by unfolding that basic structure and simply adding water, the fungi will be able to grow around that framework into a fully functional human habitat

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NASA
Keeping that in mind, the myco-architecture project out of NASA Ames Research Center in California is prototyping technologies that could "grow" habitats on the Moon, Mars and beyond out of life - specifically, fungi and the unseen underground threads that make up the main part of the fungus, known as mycelia. Pixabay

Instead of habitats made of metal and glass, NASA is exploring technologies that could grow structures out of fungi to become our future homes in the stars, and perhaps lead to more sustainable ways of living on Earth as well.

Creating a livable home for future astronauts means doing more than growing a roof to go over their heads. Astronauts will need to have all their basic needs met, just like on Earth, and face the additional challenges of living in a harsh environment on a distant world, the US space agency said in a statement.

Keeping that in mind, the myco-architecture project out of NASA’s Ames Research Center in California is prototyping technologies that could “grow” habitats on the Moon, Mars and beyond out of life – specifically, fungi and the unseen underground threads that make up the main part of the fungus, known as mycelia.

“Right now, traditional habitat designs for Mars are like a turtle – carrying our homes with us on our backs – a reliable plan, but with huge energy costs,” said Lynn Rothschild, the principal investigator on the early-stage project.

“Instead, we can harness mycelia (vegetative part of a fungus) to grow these habitats ourselves when we get there”. Ultimately, the project envisions a future where human explorers can bring a compact habitat built out of a lightweight material with dormant fungi that will last on long journeys to places like Mars.

Upon arrival, by unfolding that basic structure and simply adding water, the fungi will be able to grow around that framework into a fully functional human habitat – all while being safely contained within the habitat to avoid contaminating the Martian environment.

Mycelia are tiny threads that build complex structures with extreme precision, networking out into larger structures like mushrooms.
With the right conditions, they can be coaxed into making new structures – ranging from a material similar to leather to the building blocks for a Mars habitat.

NASA
Instead of habitats made of metal and glass, NASA is exploring technologies that could grow structures out of fungi to become our future homes in the stars, and perhaps lead to more sustainable ways of living on Earth as well. Pixabay

That last layer of mycelia is what organically grows into a sturdy home, first activated to grow in a contained environment and then baked to kill the lifeforms – providing structural integrity and ensuring no life contaminates Mars and any microbial life that’s already there. Even if some mycelia somehow escaped, they will be genetically altered to be incapable of surviving outside the habitat, said NASA.

Mycelia could also be used for water filtration and biomining systems that can extract minerals from wastewater – another project active in Rothschild’s lab – as well as bioluminescent lighting, humidity regulation and even self-generating habitats capable of healing themselves. And with about 40% of carbon emissions on Earth coming from construction, there’s an ever-increasing need for sustainable and affordable housing here as well.

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The harsh environments of the Moon and Mars will require new ways of living – growing homes instead of building them, mining minerals from sewage instead of rock. “But by turning to the elegant systems of our own natural world, we can design solutions that are green and sustainable. Whether on distant worlds or our own ever-changing Earth, fungi could be what brings us boldly into the future,” said NASA. (IANS)