Davin News Server

Dhu on Gate wrote:
> On Sun, 16 Jun 2024 02:01:20 -0000 (UTC), Dhu on Gate wrote:
> 
>> On Sat, 15 Jun 2024 11:12:09 -0600, Loran wrote:
>>
>>> Dhu on Gate wrote:
>>>> On Fri, 14 Jun 2024 10:58:07 -0600, Loran wrote:
>>>>
>>>>
>>>>> Why? Sulfur is bad for jet engines. In the combustion chamber
>>>>> sulfuric compounds become sulfuric acid (similar to how some cities
>>>>> used to get acid rain). That extremely hot acid is then flung against
>>>>> the 1st stage turbine stator and 1st stage turbine wheel (aka some of
>>>>> the most expensive parts in a modern turbine engine).
>>>>>
>>>>>
>>>> They're moving to composite ceramics instead of metals in jet engines,
>>>
>>> The bulk of the commercail aviation fleet is still traditional engines.
>>>
>>>> and anyways there's as much energy in sulphur as in carbon ;-)
>>>>
>>>> Dhu (goodbye, Carbon Monoxide, hello, sulphur dioxide! The air ., .,
>>>> .,
>>>> is everywhere!)
>>>
>>> So2 is bad news bro.
>>>
>>> They're going to exacerbate the next ice age (already in progress) and
>>> kill lots of lung tissue off:
>>>
>>> https://pubmed.ncbi.nlm.nih.gov/27565714/
> 
> That's a good possibility.  Are we headed into any giant clouds of cold
> hydrogen?  If the worst comes down, we'll have to burn the Medicine River
> coal instead of using it to speciate Ringworlds.  Shit happens...
> 
> Dhu
> 
>>>
>>> Inhalation of high concentrations of sulfur dioxide (SO2) affects the
>>> lungs and can be immediately dangerous to life. We examined the
>>> development of acute and long-term effects after exposure of SO2 in
>>> Sprague-Dawley rats, in particular inflammatory responses, airway
>>> hyperresponsiveness (AHR) and lung fibrosis. Animals were subjected to
>>> a single exposure of 2200ppm SO2 during 10min and treated with a single
>>> dose of the anti-inflammatory corticosteroid dexamethasone 1h following
>>> exposure. Exposed rats showed labored breathing, decreased body-weight
>>> and an acute inflammation with neutrophil and macrophage airway
>>> infiltrates 5h post exposure. The acute effects were characterized by
>>> bronchial damage restricted to the larger bronchi with widespread
>>> injured mucosal epithelial lining. Rats displayed hyperreactive airways
>>> 24h after exposure as indicated by increased methacholine-induced
>>> respiratory resistance. The inflammatory infiltrates remained in lung
>>> tissue for at least 14 days but at the late time-point the dominating
>>> granulocyte types had changed from neutrophils to eosinophils.
>>
>> The quantities needed to effect solar reflection in the UPPER ATMOSPHERE
>> are _vastly_lower_ than what comes outta Kilauea on a good day.
>>
>> Dhu
> 
> 
> 
> 
> 
At least you've got a plan of sorts!