Archive for the ‘materials’ category: Page 21

Nov 26, 2022

Israel Found a Way to Make Soldiers Invisible

Posted by in categories: government, materials

The Israeli government has teamed up with a defense contractor to invent a new material matrix that can hide soldiers from infrared sensors, making them more difficult to detect.

Polaris Defense’s Kit 300 system is a “thermal visual concealment” system that uses a combination of “metals, microfibres, and polymers” to mask a soldier’s thermal signature, according to Business Insider.

Thermal imaging technology creates a visual representation of an object via the invisible infrared (“heat radiation”) the object emits. If that object radiates heat, a thermal imager will show an image of it, with different colors representing relative levels of heat.

Nov 26, 2022

We Finally Know How Black Holes Produce The Most Brilliant Light in The Universe

Posted by in categories: cosmology, materials

For something that emits no light that we can detect, black holes just love to cloak themselves in radiance.

Some of the brightest light in the Universe comes from supermassive black holes, in fact. Well, not actually the black holes themselves; it’s the material around them as they actively slurp down vast amounts of matter from their immediate surroundings.

Among the brightest of these maelstroms of swirling hot material are galaxies known as blazars. Not only do they glow with the heat of a swirling coat, but they also channel material into ‘blazing’ beams that zoom through the cosmos, shedding electromagnetic radiation at energies that are hard to fathom.

Nov 24, 2022

Novel Yeast-Assembly Technique Yields Living Materials

Posted by in categories: biotech/medical, materials

Researchers say structures made of the cells could potentially be used to clean up uranium from oceans, heal wounds, and more.

Nov 24, 2022

Atomic transistors based on seamless lateral metal-semiconductor junctions with sub-1-nm transfer length

Posted by in categories: computing, materials

A recent study, affiliated with South Korea’s Ulsan National Institute of Science and Technology (UNIST) has reported a scalable synthetic strategy to fabricate low-resistance edge contacts to atomic transistors using a thermally stable 2D metal, namely PtTe2.

Developing cheaper, smaller, and better-performing semiconductors with other than (Si), is expected to gain , thanks to a recent study from UNIST. This will aid in reducing the space between semiconductors and metals within to ∼1 nm, which could help maintain .

Published in the August 2022 issue of Nature Communications, this study has been jointly led by Professor Soon-Yong Kwon and Professor Zonghoon Lee in the Department of Materials Science and Engineering at UNIST.

Nov 23, 2022

First ever 100 percent bio-based 3D-printed home unveiled

Posted by in categories: habitats, materials

The new type of home could address housing shortages.

On Monday, the University of Maine Advanced Structures and Composites Center (ASCC) unveiled the first 3D-printed house made entirely out of bio-based materials called BioHome3D, according to a press release by the institution.

Fully recyclable and highly insulated

Continue reading “First ever 100 percent bio-based 3D-printed home unveiled” »

Nov 22, 2022

Scientists synthesize an analog of the Earth’s most complex mineral in a laboratory

Posted by in category: materials

A team of scientists led by crystallographers from St Petersburg University has succeeded in synthesizing an analog of the Earth’s most structurally complex mineral, ewingite, in a laboratory. The findings of the research are published in Materials.

Ewingite is a that was discovered in the mid-2010s in the abandoned Plavno uranium mine located in the Czech Republic. It is the most complex mineral known to exist on Earth. Moreover, because of the specific thermodynamic conditions required for its formation, the mineral is considered to be very rare.

The researchers managed to synthesize an analog with a composition and crystal structure similar to that of natural ewingite through a combination of low-temperature hydrothermal synthesis and room-temperature evaporation.

Nov 21, 2022

A possible game changer for next generation microelectronics

Posted by in categories: computing, materials

Tiny magnetic whirlpools could transform memory storage in high performance computers.

Magnets generate invisible fields that attract certain materials. A common example is refrigerator magnets. Far more important to our everyday lives, magnets also can store data in computers. Exploiting the direction of the magnetic field (say, up or down), microscopic bar magnets each can store one bit of memory as a zero or a one—the language of computers.

Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory want to replace the bar magnets with tiny magnetic vortices. As tiny as billionths of a meter, these vortices are called skyrmions, which form in certain . They could one day usher in a new generation of microelectronics for memory storage in .

Nov 21, 2022

A Magnetic Wormhole

Posted by in categories: cosmology, materials

Circa 2015 face_with_colon_three

Scientific Reports volume 5, Article number: 12,488 (2015) Cite this article.

Nov 21, 2022

Graphene — Material of the Future?

Posted by in categories: futurism, materials

face_with_colon_three circa 2014.

What is graphene? Why has it taken researchers so long to discover it? Is it truly the material of the future?

Nov 20, 2022

Major Implications — Scientists Have Created a “Living Blood Vessel”

Posted by in categories: biotech/medical, materials

This is the first time scientists have observed vessels form with such a close resemblance to the complicated structure of naturally occurring blood vessels.

An international research collaboration headed by the University of Sydney has created technology that allows for the production of materials that mirror the structure of living blood vessels, with major implications for the future of surgery.

Preclinical research showed that once the manufactured blood vessel was transplanted into mice, the body accepted it and new cells and tissue began to develop in the appropriate locations, thereby converting it into a “living blood vessel.”

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