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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: uk.d-i-y,sci.electronics.design
Subject: Re: OT: EV Charging Stations Stripped of Copper Cables
Date: Mon, 8 Jul 2024 11:33:12 +1000
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On 8/07/2024 3:15 am, Cursitor Doom wrote:
> On Sun, 7 Jul 2024 20:34:45 +1000, Bill Sloman wrote:
> 
>> On 7/07/2024 7:58 pm, The Natural Philosopher wrote:
>>> On 06/07/2024 15:23, Martin Brown wrote:
>>>> On 05/07/2024 16:06, The Natural Philosopher wrote:
>>>>> On 05/07/2024 15:34, Bill Sloman wrote:
>>>>>> On 5/07/2024 10:18 pm, The Natural Philosopher wrote:
>>>>>>> On 05/07/2024 12:36, Bill Sloman wrote:
>>>>>>>> On 5/07/2024 8:08 pm, The Natural Philosopher wrote:
>>>>>>>>> On 05/07/2024 10:38, Martin Brown wrote:
>>>>>>>>>> On 04/07/2024 17:18, Jethro_uk wrote:
>>>>>>>>>>> On Thu, 04 Jul 2024 14:11:54 +0000, Smolley wrote:
>>>>>>>>>>>> On Thu, 04 Jul 2024 21:55:59 +1000, Bill Sloman wrote:

<snip>

>>> That's what I have been saying. Stuff with a half life of a few hundred
>>> years is the problem, and a pyramid that works for 5000 years is plenty
>>> good enough.
>>
>> And you happen to be completely wrong, as usual. Stuff with a short half
>> life is a particularly horrible threat, but you don't want environment
>> contaminated with any of the longer lived stuff either - right out to
>> Iodine-129 with it's 15.7 million year half-life.
>>
>> Only an ignorant yokel like you could fail to see it as a threat.
> 
> I think you misunderstood what he said (as usual) Bill.

You usually do. You don't understand much, and imagine that your own 
defective understanding justifies quite a bit of off-target rudeness.

> The kind of exposure is also highly relevant.

The problem with the longer-lived radio-nucleotide is that they will 
still be dangerous long after our current civilisation is dead and 
forgotten. We can't predict who or what will get exposed to our 
radioactive waste, or how they might get exposed.

Burying it deep in some kind of geologically stable structure is the 
best we can do, and we still aren't actually doing it, some seventy 
years after we started generating high level radioative waste.

> Most notably ingestion as opposed to simple proximity to the source. You are aware - I assume - that different
> modes of radiation (eg. alpha, beta, gamma etc.) have different
> penetrative qualities and whilst lead is required to screen out some
> types, others can't even make it through skin.

Obviously. I've had a technical education that does explicitly include 
that kind of information. I've even worked on electron microscopes which 
rely on beta-particles (electrons) as their illuminating mechanism.

If you knew what you were talking about, you'd know that, rather than 
having to "assume" it.

-- 
Bill Sloman, Sydney


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