Subj : Re: pi500 and pi500+
To   : All
From : The Natural Philosopher
Date : Tue Nov 25 2025 16:54:27

On 25/11/2025 15:46, John R Walliker wrote:
> On 18/11/2025 23:49, Lawrence D?Oliveiro wrote:
>> On Tue, 18 Nov 2025 18:09:05 +0000, The Natural Philosopher wrote:
>>
>>> Iron in oxygen free water does not rust.
>>
>> How do you make some? And how long does it stay oxygen-free?
> 
> Just put some iron in it and seal the container.
> 
The way we did it in school chemistry was to put the nail in the water, 
boil the water and seal the test tube with beeswax.

The control was a nail dropped in tap water and not sealed

A pretty definitive experiment. My school didn't teach science, it 
reproduced every one of the most significant experiments of the last 400 
years if it was practicable. Science was never taught as 'true' It was 
taught as 'what people thought after doing this experiment'


> John

-- 
  ?A leader is best When people barely know he exists. Of a good leader, 
who talks little,When his work is done, his aim fulfilled,They will say, 
?We did this ourselves.?

? Lao Tzu, Tao Te Ching


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