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" The new #sand #battery, designed by Polar Night Energy, is effectively a giant sandpit encased in a roughly 100 by 40 foot (30 by 12 meter) steel container.
The sand is heated using closed-loop heat transfer pipes and this heat is trapped by two layers of steel sandwiching an insulation layer. The energy is then extracted by blowing cool air through the pipes, capturing the heat to #generate #hot #water, #steam or hot air."
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https://www.livescience.com/technology/engineering/a-scalding-hot-sand-battery-is-now-heating-a-small-finnish-town -
" The new #sand #battery, designed by Polar Night Energy, is effectively a giant sandpit encased in a roughly 100 by 40 foot (30 by 12 meter) steel container.
The sand is heated using closed-loop heat transfer pipes and this heat is trapped by two layers of steel sandwiching an insulation layer. The energy is then extracted by blowing cool air through the pipes, capturing the heat to #generate #hot #water, #steam or hot air."
...
https://www.livescience.com/technology/engineering/a-scalding-hot-sand-battery-is-now-heating-a-small-finnish-town -
" #Defending #democracy is easier when you #listen to #voters
The worst outcomes are less likely if Trump is less popular. So Democrats need to win the battle of public opinion."
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https://www.natesilver.net/p/defending-democracy-is-easier-when -
A presidency reduced to a sales pitch—how else do you explain the jarring sight of the #President of the United States hawking #Teslas on the White House South Lawn? ... :(
"#Trump has always been a #salesman, lending his name to real estate, casinos, restaurants... https://www.wired.com/story/elon-musk-donald-trump-doge-congress-takeover/
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" Bethlehem students now have to keep all electronics in a locked pouch for the entire school day — a change of policy that was “completely #transformational” from the first week, Doemel told me when I visited the school last month.
He gestured to the cafeteria in front of us as though to a miracle. Clusters of chatting students made a hum punctuated by the clatter of trays and the squeak of chairs. It seemed totally normal to me. But that could be because..."
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China’s conciliatory signalsThe large Chinese delegation in #Davos was led by Premier Li Qiang, who gave his own speech on Tuesday. He sounded like someone more interested in securing a better deal for #China in this new world order than in blowing it up. He said China is seeking to rebuild trust by safeguarding the #multilateral #trading #system. Beijing is committed to a policy of opening up to foreign investment “and will open the door still wider,”...
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https://us12.campaign-archive.com/?e=c0db1baef8&u=7404e6dcdc8018f49c82e941d&id=f27471bf09 -
ΓΙΑ ΕΝΗΜΕΡΩΣΗ: " ...η τεχνολογία #Blockchain επιτρέπει συναλλαγές με πρωτοφανή ταχύτητα, τη φύλαξη των υποκείμενων περιουσιακών στοιχείων σε έναν λογαριασμό που βασίζεται στο cloud για να καταστούν οι συμμετοχές διαφανείς και ρευστοποιήσιμες, τη χρήση #smart_contracts με λειτουργίες κατά της νομιμοποίησης εσόδων από παράνομες δραστηριότητες για την πρόληψη της παράνομης χρηματοδότησης και τη χρηματοοικονομική ένταξη, καθώς τα #flatcoins...
https://www.itspossible.gr/nouriel-roubini-%CE%B1%CF%85%CF%84%CF%8C-%CE%B5%CE%AF%CE%BD%CE%B1%CE%B9-%CF%84%CE%BF-%CE%BD%CE%AD%CE%BF-%CE%BD%CF%8C%CE%BC%CE%B9%CF%83%CE%BC%CE%B1-%CF%80%CE%BF%CF%85-%CE%B8%CE%B1-%CE%BA%CE%BF%CE%BD/ & https://www.ft.com/content/7774da77-048d-4e75-8350-4fec136cb18f