In sci.physics, BradGuth
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wrote
You've been off-world again, haven't you.
Which "The Ghost In The Machine" is it this time around?
The naysaying Yiddish one, of course. Hmm...where'd I put
my yarmulke? Do I even *have* one???
Closest thing to a driedel I have is a six-sided die,
and I'm not sure where my AD&D dice have wandered off to
today....

I might have some candle holders, but
they're singles, not 8-candle or 7-candle chanukah/hannukah
units.
Yes, I do have a beard. Yes, you are still an idiot.
What part of a 40 kw/m2 worth of tower footprint is way over your
head?
I'm still curious as to the details of this tower
construction. Best I can do is about 200 W/m^2, and
that's with rather exotic PV cells with 40% sunlight
extraction efficiency, over the course of a 24-hour period.
More conventional PV cells might get one 50-100 W/m^2,
again over the course of a 24-hour period.
This energy, which is electric, can be used to synthesize
h2o2. (It's probably better used to electrolyze water,
generating straight h2.)
In theory one might build a tower 10 km high (the highest
building is currently about 560m in height -- the Burj
Dubai) and use the temperature differential as an energy
source.
Or are you contemplating stringing a power cable between
here and LP2 Venus?
Haven't you ever heard of Warren Buffett, or physics?
If enough h2o2 is created via renewable energy that's every bit as
squeaky clean as solar, wind, tidal and geothermal, then where's all
the nasty pollution you speak of coming from?
BTW, you don't really recharge the h2o2/aluminum battery. It's more
like a fuel cell of stored energy, and actually lots of it per kg.
To the extent that concentrated h2o2 might indeed be a dangerous
explosive, yes. Watch out if it crystallizes!