Sunday, May 28, 2023

Cosmic dust can uncover even alien life.

NASA found remnants of the planetary system in the Helix Nebula. 


That thing is one of the most interesting things that ever found. Helix Nebula is the supernova remnant. And that means the star was too heavy and short-living, that there could form technically advanced civilization. But those planetary remnants tell that there is a possibility that also around white dwarfs can be remnants of planetary systems. The white dwarf is the star remnant. That is interesting because our Sun will transform into a white dwarf after a couple of millions of years. 

And if we want to find alien civilizations that can make interstellar journeys, we should look for evidence around star remnants that are out of their fuel. In that case, the civilization must move to another solar system or its fate will be destroyed when its star will erupt as a nova or supernova. 

"The spectral energy distribution of WD 2226-210 superposed on an image of the Helix Nebula from Hubble Space Telescope. The plot combines optical, infrared, and millimeter photometry, the Spitzer mid-infrared spectrum, and upper limits from WISE, Spitzer, SOFIA, Herschel, and ALMA. Models of the white dwarf photosphere (solid) and IR excess showing good fits to the data detections (circles) and upper limits (triangles). Helix Nebula. Credit: NOIRLab; SED credit: J. P. Marshall". (ScitechDaily.com/NASA Reveals a Destroyed Planetary System)



"While not part of this study, this photo taken with a microscope shows the impact paths and bodies of small particles of comet debris from U.S. space agency NASA’s Stardust mission in 2004. The aerogel helps decelerate the particles without destroying them in the process. Credit: NASA/JPL" (ScitechDaily.com/Space Dust – A New Way To Search for Alien Life)


Supernova or nova eruptions send material all around the Universe. And maybe some part of those cosmic sand bites can travel to our solar system.


he space dust can be a good place to find evidence of those hypothetical interstellar civilizations. The interstellar civilizations would use extremely powerful engine systems like antimatter engines. Those engines send radiation and exotic particles around them. And maybe some of those particles are touching cosmic dust.

Also if researchers find some kind of exotic artificial radioisotopes in space dust. That tells something about the source of that bite of dust. Natural nuclear reactions can form plutonium. But heavier elements like Californium or some other synthetic elements that thing tells that there is some kind of nuclear reactor that sends those elements around them. 

Finding those elements is literally like searching for certain sand bites from the cosmic sand cloud. That thing requires lots of luck, but if in space dust is synthetic elements. That thing means a breakthrough in the SETI program. The best place to find cosmic dust or particles from another solar system is the Kuiper Belt. 

In Kuiper Belt, those dust bites are like in a cosmic freezer. They can involve remnants of the DNA of the ancient species. Also, some viruses can keep their ability to transfer their genetic material in the cosmic journey that can take billions of years. The temperature on that journey is about 3 kelvin, which means there is not very much oscillation or chemical reaction during the journey. So the DNA itself can survive in that journey if the radiation of the nova or supernova will not destroy it. 

There is the possibility that some part of those sand bites fall on Earth. But it's hard to detect alien genomes.  Because even if in the Antarctean Earth lifeforms pollute those particles. There are no confirmed alien species in any laboratory. Researchers cannot search for alien DNA from objects on Earth by just compiling the DNA. But if that DNA or its remnants will found on some asteroid, that thing would change the game In that case the DNA can be proven found from space. 

Normally at Earth temperature synthetic super-heavy nuclear isotopes are not long-lasting. But in models in sand bites in the Kuiper belt. There is an extremely low mass of those isotopes. And the temperature in there is very close to zero kelvin. So that means even the heaviest elements can remain longer time. 


https://scitechdaily.com/nasa-reveals-a-destroyed-planetary-system/

https://scitechdaily.com/space-dust-a-new-way-to-search-for-alien-life/

Saturday, May 27, 2023

Self-growing graphene is a next-generation way to make that ultimate material.

Carbon is a key material in nanotechnology. 

Carbon plays a vital role in nanotechnology. The compounds between extremely long and complicated molecules are easy to make between carbon atoms. Things like graphene can use in base layers. Researchers can use that material in nanomachine trunks. Along with fullerene nanotubes, those structures can form nano-size legos. The fullerene nanotubes and fullerene balls can use as axles and joints of nano-size robots. 

Graphene is an ultimate material, and if self-growing 2D graphene crystals are possible to create, that makes a revolution in material research. There is more and more use for the 2D-carbon with one carbon atom layer. And that means graphene must produce more and more. 

Graphene grows. And that is one of the most interesting observations in material technology. Graphene is a 2D lattice of carbon atoms, and carbon has the ability that carbon atoms can reduce carbon. That means that carbon atoms can separate carbon from compounds. That effect allows the creation self-growing carbon graphene layer. 

We know that we can grow crystals in liquid, and things like diamonds are also crystals. The diamond is carbon's amorphic form. And the same way there is a possibility to grow 2D carbon structures called graphene. Graphene is the 2D single-atom layer of carbon. Creating graphene from graphite is theoretically quite an easy thing. 

The laser just planes extra atom layers away from graphite. And that leaves the 2D atomic structure. But if the graphene structure can turn to self-growing. That makes this process easier. 


"Graphene is a revolutionary material consisting of a single layer of carbon atoms arranged in a hexagonal lattice, offering incredible strength, conductivity, and flexibility. Its unique properties make it a promising candidate for various applications, from electronics and energy storage to medicine and environmental solutions". (ScitechDaily.com/Unexpected Findings – Graphene Grows, and We Can See It)




Above: The atom structure of diamond makes that form suitable for scanning tunneling microscopes. And that thing allows us to aim wave movement with extremely high accuracy. If the vertex-carbon will put oscillation or wave movement travel through a fullerene tube, that allows the creation of an extremely accurate acoustic or electromagnetic system. 



Diamond unit cell, showing the tetrahedral structure. (Wikipedia/diamond)




Model of a carbon (fullerene) nanotube. (Wikipedia/Fullerene)


Model of the C60 fullerene (buckminsterfullerene). (Wikipedia/fullerene)

There are multiple uses for this 2D material. The 2D nanomaterials allow covering layers by using the one-atom carbon layer. That layer can make it extremely hard. In some ideas graphene can act as a knife, that can use to cut extremely small-size diamonds. 

In those systems, the electricity will put to travel between diamond and graphene. And then the electricity will transfer carbon atoms from nano-diamonds to graphene. Nano-diamonds are small carbon atom groups that can use in scanning tunneling microscopes. Those things can also use to push atoms on the layers. The idea is that the nano-diamond will put to oscillate. 

In some models, nano-diamond along with fullerene tubes can act as miniaturized coherent acoustic devices. In that system, the nano-diamond will be put in a fullerene tube. And then it will put to oscillate. In the same way, the carbon atoms in the fullerene tube will put to oscillate. That oscillation presses the soundwave to coherent mode, which can use as a "billiard stick" that pushes atoms and molecules on the layer. 

And that acoustic system can use to transfer wanted molecules and atoms. The nano-diamond also can use as an antenna, that will conduct electromagnetic radiation in the wanted direction. That system can use in nano-size microprocessors. 


https://scitechdaily.com/unexpected-findings-graphene-grows-and-we-can-see-it/


https://en.wikipedia.org/wiki/Diamond

https://en.wikipedia.org/wiki/Fullerene

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