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Archive for the ‘materials’ category: Page 223

Jun 9, 2019

Handy graphene foam combos keep surfaces ice-free

Posted by in category: materials

Combining laser-induced graphene with a range of other materials gives it all sorts of new tricks.

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Jun 8, 2019

Synopsis: Scanning Earth’s Interior with Neutrinos

Posted by in categories: biotech/medical, materials

Future neutrino experiments may provide tomographic scans of Earth’s interior by viewing solar neutrinos that pass through our planet’s layers.

The Sun showers Earth with neutrinos, but this “glow” doesn’t dim when the Sun goes down. At night, solar neutrinos penetrate Earth, impinging detectors from below. Like x rays in a medical scanner, these planet-traversing neutrinos might offer information about the material they pass through. New theoretical calculations show that future experiments, such as the Deep Underground Neutrino Experiment (DUNE), could characterize the different layers inside Earth with neutrino-based tomography.

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Jun 6, 2019

A Squeezable “Glass” Water Bottle That Won’t Collect Tastes or Smells

Posted by in category: materials

A plastic water bottle can survive the rigors of an active lifestyle, but over time it will collect odd smells and flavors that eventually can’t be scrubbed out. A glass bottle is a better option, naturally eschewing mold and odors, but one wrong move and suddenly it’s a pile of shards. These Squeezable Glass bottles claim to offer the best of both worlds—but have a bit of a misleading claim to fame.

The bottles aren’t actually made from some indestructible self-repairing glass material discovered in a secret lab a decade ago; they’re plastic, which is why they can be squeezed without shattering. However, the insides of the bottles are coated with an incredibly thin layer of silicon dioxide—which is what glass is made from—that’s just 20 nanometers thick. It acts as barrier preventing smells, flavors, mold, and other bad stuff from sticking to the plastic, but it remains completely flexible.

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Jun 6, 2019

Mushrooms Clean Up Toxic Mess, Including Plastic. So Why Aren’t They Used More?

Posted by in category: materials

Proponents say this natural alternative to wildfire cleanup is potentially cheaper.

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Jun 6, 2019

Metal foam stops .50 caliber rounds as well as steel – at less than half the weight

Posted by in categories: materials, military

Researchers have demonstrated that vehicle armor using composite metal foam (CMF) can stop ball and armor-piercing .50 caliber rounds as well as conventional steel armor, even though it weighs less than half as much. The finding means that vehicle designers will be able to develop lighter military vehicles without sacrificing safety, or can improve protection without making vehicles heavier.

CMF is a foam that consists of hollow, metallic spheres—made of materials such as or titanium—embedded in a metallic matrix made of steel, titanium, aluminum or other metallic alloys. In this study, the researchers used steel-steel CMF, meaning that both the spheres and the matrix were made of steel.

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Jun 5, 2019

Signs & Symptoms of Bone Marrow Disease

Posted by in categories: biotech/medical, materials

Bone marrow is a soft spongy material that is located inside of the bones. Bone marrow is necessary for the transition that stem cells make to become one of the types of blood cells (red blood cells, platelets or white blood cells). Bone marrow disease occurs when there is some kind of abnormality or interference with the production of blood cells. Leukemia, aplastic anemia and myelodysplastic syndromes (MDS) are three types of bone marrow disorders that affect the production of blood cells and the bone marrow. Symptoms of each type of bone marrow disease will vary according to its severity, but tend to be similar in nature.

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May 30, 2019

NASA and MIT Debut Shape-Shifting Airplane Wing

Posted by in categories: materials, transportation

A team from NASA and MIT has created a new type of airplane wing — and it could make air travel far more efficient.

In a paper published in the journal Smart Materials and Structures on Monday, the researchers describe how they built an airplane wing from hundreds of identical, lightweight cube-like structures, all bolted together and then covered with a thin polymer material.

The design allows the wing to change shape automatically, adjusting itself to whatever configuration is optimal for the current phase of flight — with one configuration for take-off, for example, and another for landing.

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May 28, 2019

What’s the Magic Behind Graphene’s ‘Magic’ Angle?

Posted by in category: materials

A new theoretical model may help explain the shocking onset of superconductivity in stacked, twisted carbon sheets.

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May 28, 2019

Civilization: Institutions, Knowledge and the Future — Samo Burja

Posted by in categories: futurism, materials

Our civilization is made up of countless individuals and pieces of material technology, which come together to form institutions and interdependent systems of logistics, development and production. These institutions and systems then store the knowledge required for their own renewal and growth.

We pin the hopes of our common human project on this renewal and growth of the whole civilization. Whether this project is going well is a challenging but vital question to answer.

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May 27, 2019

Researchers develop wood that can cool a home

Posted by in categories: habitats, materials

Wood has a series of tiny structures inside that are used to carry water and nutrients to all parts of a living tree. Scientists have now figured out how to harness those same small structures to keep a home cool. Researchers at the University of Maryland and the University of Colorado Boulder say that the material could save 20% in AC bills.

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