Today's Tech News: Notable or Not?

https://phys.org/news/2025-11-table-salt-enables-metallic-nanotubes.html "nanotubes only made from carbon (semiconductors/ semimetals) or boron nitride (insulating), so no true metallic nanotubes which can exhibit superconductivity/ magnetism... overcome, coaxing metal to wrap around carbon/ boron nitride nanotube template adding tiny salt amount during growth... favored forming 2 nested shells instead of 1 layer, stabilized by electrons hopping between layers, acting like atomic-sized capacitor... no dangling bonds, providing greater precision/ reliability at nanoscale... faster electronics"

https://techxplore.com/news/2023-11-salt-batteries-storage.html "salts tested for availability, safety, compactness and recyclability... heating strontium chloride salt releases water vapor.. adding back water vapor releases heat again... heat from pv solar panels extracted by boiler and used to heat house/ shower with excess heating 10 m3 of salt, which corresponds to two to three wardrobes. With that quantity natural gas no longer needed and heat stored in summer can be used in winter" Comments from Revolution-Green: "Rather expensive, that much strontium salt would cost ~$30k or more... also, if the demand for Strontium Chloride rises, the cost will too. Needs something a lot cheaper now and in massive supply"  http://disq.us/p/2wplbjw Related: UK’s unique heat-capturing glass tubes are keeping US fishermen warm https://interestingengineering.com/innovation/solar-solution-focuses-on-suns-heat Passive Photovoltaic Cooling: Advances Toward Low-Temperature Operatio...

https://www.tue.nl/en/news-and-events/news-overview/25-04-2022-how-the-eindhoven-heat-battery-can-quickly-make-millions-of-homes-gas-free/ "In Netherlands we have about 150 PetaJoule (a number with 15 zeros) of residual heat from industry per year... enable you to take almost 3.5 million homes off gas, more than twice the target of Dutch government, namely 1.5 million homes gas-free by 2030... Heat grids use pipes with water, which cools and therefore limits radius of action," Adan explains... heat grids have hefty investment risk and has to be broken open to build them... test trial to use heat battery for reuse of industrial residual heat"  Related:  Pioneering the energy transition with revolutionary heat storage systems https://www.innovationnewsnetwork.com/pioneering-energy-transition-with-revolutionary-heat-storage-systems/28874/