Dobrou umělou chuť. Maso jako nepřítel pokroku a moderního života | Týdeník pro ekonomiku, politiku a byznys
https://www.tydenikhrot.cz/clanek/pochoutky-dr-frankensteina-maso-jako-nepritel-pokroku-volkswagen

Deyl vážně i nevážně o nahrazkach masa :-)

oh no, really? they wouldnt!

Oil firms made ‘false claims’ on blue hydrogen costs, says ex-lobby boss | Hydrogen power | The Guardian
https://www.theguardian.com/environment/2021/aug/20/oil-firms-made-false-claims-on-blue-hydrogen-costs-says-ex-lobby-boss

Rain falls on peak of Greenland ice cap for first time on record | Greenland | The Guardian
https://www.theguardian.com/world/2021/aug/20/rain-falls-peak-greenland-ice-cap-first-time-on-record-climate-crisis

Rain has fallen on the summit of Greenland’s huge ice cap for the first time on record. Temperatures are normally well below freezing on the 3,216-metre (10,551ft) peak, and the precipitation is a stark sign of the climate crisis.

Scientists at the US National Science Foundation’s summit station saw rain falling throughout 14 August but had no gauges to measure the fall because the precipitation was so unexpected

...

In May, researchers reported that a significant part of the Greenland ice sheet was nearing a tipping point, after which accelerated melting would become inevitable even if global heating was halted.

#blueHydrogen #oilLobby #rumours

Oil firms made ‘false claims’ on blue hydrogen costs, says ex-lobby boss | Hydrogen power | The Guardian
https://www.theguardian.com/environment/2021/aug/20/oil-firms-made-false-claims-on-blue-hydrogen-costs-says-ex-lobby-boss

Oil companies have used false claims over the cost of producing fossil fuel hydrogen to win over the Treasury and access billions in taxpayer subsidies, according to the outgoing hydrogen lobby boss.

Chris Jackson quit as the chair of a leading hydrogen industry association this week ahead of a government strategy paper featuring support for “blue hydrogen”, which is derived from fossil gas and produces carbon emissions.

TUHO: Tak nemecka spolecnost Duesenfeld byla prvni ktera to mela opravdu dobre vyresene. Kromne plastovych casti a grafitu to maji vyresene. Tzn. vsechny kovy a kovove casti jdou plne recyklovat. Napr. : https://youtu.be/wxCFDWMPu38

Obdobnou technologii ma i Volkswagen : https://youtu.be/Qi8Y2lF7Luw

Ale jsou i firmy v Indii, Cine ktery s tim zacinaji. Zakladem vseho je ze se baterie kompletne vybijou (opravdu do mrte kdy uz dochazi k poskozeni) a ta energie se vyuzije (Duesenfeld) v provozu spolecnosti. Pak se pod dusikem ty baterie namelou, roztridi se heterogenni materialove kusy (strepy hliniku, ...) a pak prichazi hydrometalurgicky proces. Tzn. jednotlive kovy se prevedou na ve vode/vodnych roztokach/kyselinach rozpustne slouceniny (tam uz by nemel byt pritomen hlinik, ktery z hydrometalurgickeho procesu nejde elektrochemicky vyziskat zpet) a zde je to klicove know-how. Pak se chemicky a elektrochemicky dostavaji jednotlive kovy do separovene formy. Vystup jsou typicky uhlicitany, hydrogenuhlicitany danych kovu ve vysoke cistote. Vyteznost procesu je klidne 98%, tzn. materialove velmi setrne.

Jestli nekde budes hate proti recyklaci a budou se uvadet technologie kdy se baterie tavi ve vysoke peci, vyziska se jen male mnozstvi kovu atp., tak to je technologie minuleho stoleti a nikdo to takhle delat nebude.

The powerful greenhouse gases tetrafluoromethane & hexafluoroethane have been building up in the atmosphere from unknown sources. Now, modelling suggests that China’s aluminium industry is a major culprit. The gases are thousands of times more effective than carbon dioxide at warming the atmosphere.
What’s the mystery source of two potent greenhouse gases? The trail leads to Asia : Research Highlights
https://www.nature.com/articles/d41586-021-02231-0

DNF: my to dělali na skautu ještě v minulým tisíciletí, vedoucí tam nějak i kondenzoval tér pomocí plechovejch komínů ponořenejch ve studený vodě. Já proti dřevěnýmu uhlí nic nemám, ale fascinuje mě tahleta móda vytáhnout jako samospásnou nějakou rtechnologi z doby bronzový, nahodit jí buzzword a vydávat jí za novinku, co nás všechny zachrání...


KEB: jo, peletám věřím, se slámou mám v těhlech samodomo výpalnách trochu problém. Ty pelety si vyráběl sám, jak to funguje?

OMNIHASH: videl jsem video jak to takovej dedous pali v sestave starejch plechovejch sudu a piksel. Ma to dobre postaveny a zakrejva diry rezavym plechem v dobrym momentu, palivo je oddeleny od spalovaci komory, takze opravdu spaluje drevoplyn.
Je to sice slozitejsi nez kybl, ale ze by se to nedalo udelat na zahrade, to se spis da.