Notices by Seán na bhFritíortha (seanos@aus.social)

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Seán na bhFritíortha (seanos@aus.social)'s status on Sunday, 13-Jul-2025 09:08:46 JST Seán na bhFritíortha

Great, so the prime minister's chosen anti-anti-semitism tsar supports a right-wing racist lobby group. Clueless?.
https://theklaxon.com.au/jillian-segal-and-husband-funding-far-right-group-advance/

In conversation about a year ago from aus.social permalink
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Seán na bhFritíortha (seanos@aus.social)'s status on Thursday, 29-May-2025 10:17:09 JST Seán na bhFritíortha
in reply to
- Tim Chambers
@tchambers
I just can't understand why our *publicly funded* broadcaster has made it so hard to directly find their RSS over the last decade, forcing people to use their phone app or the web equivalent. Tracking users like a shitty corporation.

In conversation about a year ago from aus.social permalink
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Seán na bhFritíortha (seanos@aus.social)'s status on Wednesday, 26-Jul-2023 22:53:28 JST Seán na bhFritíortha

Have they actually done it this time? A room temperature, ambient pressure super-conductor????
https://arxiv.org/abs/2307.12008
#superconductor
In conversation Wednesday, 26-Jul-2023 22:53:28 JST from aus.social permalink
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  The First Room-Temperature Ambient-Pressure Superconductor
  
  For the first time in the world, we succeeded in synthesizing the room-temperature superconductor ($T_c \ge 400$ K, 127$^\circ$C) working at ambient pressure with a modified lead-apatite (LK-99) structure. The superconductivity of LK-99 is proved with the Critical temperature ($T_c$), Zero-resistivity, Critical current ($I_c$), Critical magnetic field ($H_c$), and the Meissner effect. The superconductivity of LK-99 originates from minute structural distortion by a slight volume shrinkage (0.48 %), not by external factors such as temperature and pressure. The shrinkage is caused by Cu$^{2+}$ substitution of Pb$^{2+}$(2) ions in the insulating network of Pb(2)-phosphate and it generates the stress. It concurrently transfers to Pb(1) of the cylindrical column resulting in distortion of the cylindrical column interface, which creates superconducting quantum wells (SQWs) in the interface. The heat capacity results indicated that the new model is suitable for explaining the superconductivity of LK-99. The unique structure of LK-99 that allows the minute distorted structure to be maintained in the interfaces is the most important factor that LK-99 maintains and exhibits superconductivity at room temperatures and ambient pressure.

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Notices by Seán na bhFritíortha (seanos@aus.social)

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