?? People may define matter as they wish, it seems . Photons have Mass and Energy
. So do electrons and quarks for that matter- I've always considered this stuff matter.
Also ZapperZ; you don't turn $1 directly into food..
Sorry, I would like to say that to the event horizon shouldn't be measured as part of a black hole's density as this is an 'effect' not acctual substance- sorry do not have time to talk more- though a black hole would be a definite volume & density,
Iou,
The heat transfer through magma is quite poor- even more so when solid as it would be at 700 C . The heat carrying capacity for water is also very high, where as magma's would be low. Your system would need a lot of piping or slow water flow to work.
I think Simon seems to understand more so what I'm trying to ask.
To CWatters, I also posted this earlier on:
So the Hydrogen pressure would not be great due to buoyancy and weight of H2.(which for 10M would be 20.2g) I am not proposing compressed hydrogen, and this would be operational in...
Thank you Simon -I found the Dr Simanek's Museum site fascinating and would probably need to look into this more.
I suppose my question could be simplified to say, If a mass of H2 (say 10M/224L) were converted to water at sea level, then the same mass of H2 at say 100m elevation (V would be...
Could I please have help with something: If I generated hydrogen via electrolysis from water, sent it high up a long tube then converted it back to water (via a cell or motor to reclaim energy) then, taking into account inefficiencies (or assume no energy loss), where does the energy come from...