Can someone do the following calculations? How many shells? How much
material would they consume each year? What happens to the shell
casings once they've delivered their load? What environmental impact
would these discarded shell casings have and in particular would they
contain any environmentally undesirable materials? What would be
necessary for this to receive social licence?
Regards
Robert
On 05/11/2023 18:22, Andrew Lockley wrote:
I've already looked at this. The meteor missile (modern) and blood
hound (cold war) use ram rockets. Nammo make ram artillery, and
there's Chinese manufacturers, too. It's not inexpensive to start
these ramjets, considering rockets or barrel wear. Coil guns might be
viable. There's manufacturers eg velontra.com <http://velontra.com>
making small hypersonic jets, which don't require a hard start.
Ballistic flight makes recovery difficult.
On Sun, 5 Nov 2023, 18:15 Gilles de Brouwer, <[email protected]> wrote:
A low cost SAI option?
Regarding the trillions or billions to do SAI geoengineering,
consider this option:
Watch "How ramjets may change the role of artillery on the
battlefield" on YouTube
https://youtu.be/0vIPNElDkns?si=9Z_mUQUXBm-4dBxF
At 4:21 you can see the 150km range parabolic trajectory goes as
high as 105km altitude!
Maybe Iowa battleship 16 inch guns with this ramjet tech could
send stuff to orbit.
Or could this be a low cost SAI geoengineering option?
1. How much would it cost to refurbish and send these old
battleships to the Arctic and Antarctic waters and deliver to much
higher altitudes? The armor plating would make the battleships
iceberg damage resistant.
2. How much longer would the particles stay at useful altitudes?
3. Would they stay in place much longer with little wind at these
very high altitudes?
4. Would it be more effective than aircraft delivered SAI?
Note from the Iowa Class Wikipedia page: "...all four are museum
ships part of non-profit maritime museums across the US."
Gilles
On Sat, Nov 4, 2023, 5:16 PM Jim Baird
<[email protected]> wrote:
From the Physics and Economics of Thermodynamics
Geoengineering, reference 77 of the Healthy Climate Action
Coalition Petition to World Leaders: The Case for Urgent
Direct Climate Cooling, The cost of removing 1139 Gt of CO2
with this technology (Negative Emissions CO2 OTEC) would
therefore be $175 trillion. CDR technology for creating
synthetic fuel from atmospheric CO2 or for other purposes
currently costs about $600 per ton, with a goal of reducing
this to below $100. [48] So, a goal of returning atmospheric
CO2 levels to preindustrial from a 2054 level of 1577 Gt is
likely to cost at a minimum $114 trillion.
*From:*[email protected] *On
Behalf Of *Gilles de Brouwer
*Sent:* November 4, 2023 4:21 PM
*To:* H simmens <[email protected]>
*Cc:* healthy-planet-action-coalition
<[email protected]>; via NOAC
Meetings <[email protected]>; Planetary
Restoration <[email protected]>;
geoengineering <[email protected]>
*Subject:* Re: Hansen Vs. Mann - Is Global Warming Linear Or
Exponential? - CleanTechnica
My comment left on the article:
Steve I like your writing, but "Trillions" is obviously
wrong. Billions is more realistic even with expensive new
high altitude aircraft, but maybe much less expensive with a
small fleet of specialty airships.
All the SAI geoengineering risks are scare mongering without
data to back it up and such dogma unscientific opinions from
"scientists" are damaging to science as an institution. AI,
for example genetic algorithms or better could design an SAI
strategy that minimizes the negatives, as it's an optimization
problem with infinite variables which is why progress is so
slow. Coupling computational models with small scale real
atmosphere experiments with full public data access for review
is critical to make a smart decision to potentially avoid
billions starving, cooking, and/or dying of thirst, or migrating.
Thanks,
Gilles de Brouwer
On Sat, Nov 4, 2023 at 3:10 PM H simmens <[email protected]>
wrote:
This article provides the author an opportunity to declare
war on Geo engineering by for example claiming that
scientists estimate that Geoengineering will cost “on the
order of tens of trillions of dollars”.
Nice to know that we can count on the media to be fair and
balanced.
Herb
https://cleantechnica.com/2023/11/03/hansen-vs-mann-is-global-warming-linear-or-exponential/
Herb Simmens
Author of /A Climate Vocabulary of the Future/
“A SciencePoem and an Inspiration.” Kim Stanley Robinson
@herbsimmens
HerbSimmens.com
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