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Originally posted by Highlander64
and of course we are not given all the facts about electricity - ever wonder how the grid copes with excess power generated whilst no oneis using it? Since they cant store it in batteries what do they do? Someone once said they light up city buildings to burn the excess juice
but I have to wonder, and would love an answer to this idea - if the red (positive) wire coming into my house has the power, and I dont have the black wire connected, nothing will run, but when the black (negative) wire, which runs back away from the house, is connected, everything runs and I am drawing current
since elctricity is the movement of a charge, and the charge is moving from the red wire, through my appliance and into the black wire, does it actually run out or does it go back through the black wire in a perhaps deplected current, to be re-billed by the power company to someone else?
deduction = probably
Originally posted by VonDoomen
reply to post by JacKatMtn
did some research-
" Recycling scrap aluminium requires only 5% of the energy used to make new aluminium"
Melting point- 660.37 °C or 933.52 K or 1220.666 °F Rather low for a metal.
If you read the OP article, it says
To make use of this aluminum, Woodall melts it and combines it with gallium, indium and tin. In room temperature, these last three ingredients coarse through the metal as a liquid dissolving the grains of aluminum around it.
So it seems the aluminum is only partially melted, to the point where it becomes grainy, and then the exotic metals do the rest.
I dont think that is odd at all
n order to get the aluminum back to a useful state, you have to reduce it. That requires a LOT of energy, oddly, it's everything you got out of it in your amazing hydrogen generator and some extra.
show me any power station that gives out more energy it puts in? nowhere in this thread do I insinuate this is a free energy machine!
It is estimated that the global coking-coal market price was around $100 per tonne and the thermal-coal price was around $60 in 2007.
Furthermore, all of the aluminum that goes into the reaction can be fully retrieved. It just needs to be thrown into a crucible and reprocessed.
The spent Al(OH)3 is easily rejuvenated back to metallic Al using the well-established commercial Hall-Heroult electrolysis. Currently carbon electrodes are used thus generating some carbon dioxide, but a commercial TiB2 electrode technology for Al smelting has been developed by the De Nora Company to displace carbon electrodes. Since most smelting operations are done with hydroelectric power, i.e. not using fossil fuels, Al smelting could become totally green.
Since the small Ga and In components are expensive but inert (see image 3), they can economically be recovered by mechanical separation, e.g. using a centrifuge.
He is encouraging venture capitalists to design a system that uses both — capturing the hydrogen as fuel and using the heat to pull clean water out of the air.
Originally posted by VonDoomen
reply to post by Grey Magic
No one said it was free energy or anything? However it is nice to see something that has more than one purpose. Purifying water and generating electricity. Maybe you have some personal research of your own that is more beneficial to humanity? Regardless, Im glad theres still researchers out there trying to invent things that help humanity, and arent just an attempt to rape this planet of its resources as fast as possible for further gain.
So yes you can belittle this breakthrough, but only because you have the luxury of living somewhere with cheap energy and fresh water. I wonder if little malnourished african children would be so Blas'e about this?
Blas'e - "Having the sensibilities deadened by excess or frequency of enjoyment; sated or surfeited with pleasure; used up."