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From: pH <wNOSPAMp@gmail.org>
Newsgroups: rec.bicycles.tech
Subject: Re: Bike to Anywhere Day Redux
Date: Mon, 19 May 2025 04:14:20 -0000 (UTC)
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On 2025-05-18, AMuzi <am@yellowjersey.org> wrote:
> On 5/18/2025 8:11 AM, pH wrote:
>> On 2025-05-17, AMuzi <am@yellowjersey.org> wrote:
>>> On 5/17/2025 10:08 AM, pH wrote:
>>>> On 2025-05-16, Frank Krygowski <frkrygow@gXXmail.com> wrote:
>>>>> On 5/15/2025 8:25 PM, sms wrote:
>>>>>> Bike to Anywhere Day Redux
>>>>>>
>>>> <snip>
>>>>>
>>>>> Interestingly, I was on some of those same roads and trails this week.
>>>>>
>>>>> That wasn't a blimp. It was LTA Research's Pathfinder 1 rigid airship.
>>>>> (A blimp is limp.) It's the largest flying machine currently existing. I
>>>>> watched one flight from the northern end of the Stevens Creek preserve,
>>>>> near GooglePlex. I've got contacts at LTA, and was given a facility tour
>>>>> last Friday.
>>>>>
>>>>> (Yep, look at me!)
>>>>
>>>>
>>>> Holy Hindenberg, Batman, I didn't know there were any dirigibles flying.
>>>>
>>>> It seems to be a disappeared part of history that there was indeed a few
>>>> years of the big ships flying hither and yon.
>>>>
>>>> pH
>>>>
>>>> slightly related, I recall reading that Helium supplies may be diminishing.
>>>> Of course we can make all the Hydrogen we want, but there's the "boom"
>>>> factor.
>>>
>>> Helium, which has many uses including the cooling medium for
>>> massive imaging facilities (one of my brothers is in that
>>> racket) is indeed more scarce since the US strategic reserve
>>> was abolished.
>>>
>>> https://directmedimaging.com/coldheads-helium-compressors-guide/
>>>
>>> https://newspaceeconomy.ca/2024/09/09/the-united-states-national-helium-reserve-and-privatization-relevance-to-the-space-economy/
>>>
>>> The various players and interests have not yet adjusted,
>>> which is an actual problem, but there's no physical shortage
>>> of helium so the situation will at some point resolve.
>>>
>>>
>>>
>> That is good to know that there is not (yet) a shortage.  I was going to say
>> we're not making any more here but I guess that's not true--radioactive
>> decay.
>> 
>> ...but maybe we'll develop the technology to harvest it from the Sun; we
>> seem to be doing some amazing things as a species...
>> 
>> pH
>
> It's a byproduct of oil/gas extraction. Not free, but it 
> does exist in some quantity.
>
> https://rockymountainair.com/blog/how-is-helium-extracted/
>
>
Thank-you for this link/read, Mr. M.

pH