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Comment Re: cash dispensing is not the business of banks (Score 1) 208

Money can be created without a bank, like this: A businessman enters a hotel and pays for a room 100$ The receptionist escorts the businessman into his room Meanwhile, the hotel accountant pays hotel's debt to the local gas station, total 100$ Gas station entrepreneur pays his debt to the local whore, total 100$ The whore pays her debt to hotel, total 100$ The businessman is not happy with his room, and he is returned the deposited 100$.

Comment metal air (Score 1) 172

If anode is is replaced with atmospheric oxygen, half of battery weight is gone. Altenatives are zinc, lithium and alumininim cathode. Zinc oxide from discharging process can be recharged without using eletricity. By means of carbothermal regeneration. ZnO is heated 1200C, carbon is feeded in the process and the result is gasified Zn. Heating can be done by using biomass, solar concentration et al. ZnO is safe, no fires in car accidents. Contrary to flammable Li an Al.

Comment Re:Thats.. (Score 1) 247

ZnO from Zinc-Air batteries/cells can be recovered to Zn also by carbothermal method By heating ZnO to 1200C and adding pure C in the regen. process. Heating can be done by charcoal/peat ie. by renewables. The energy efficiency of recovery is almost 30%, not including the cooling of vaporized zinc. Energy density if Zn-Air cells is better than Al

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