Low-Background Steel
en.wikipedia.org
Low-Background Steel
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Re: Low-Background Steel
#2If curious see also
Re: Low-Background Steel
#3This comes up on HN every now and then, it is how I learned about low background steel. If this is new to you, you may also enjoy reading about the cesium content of wine: https://www.technologyreview.com/2018/07/19/141390/fukushima...
Re: Low-Background Steel
#4Im always curious how we will send messages to future civilizations. How will we ensure we’ll be remembered or even noted in 10,000, 100,000, 1 million years? How can we prevent the same disaster(s) that eventually wipes our civilisation out from repeating again in future intelligent generations (human or otherwise)
Could environmental markers like these be the way? After all, it’s how we look at the past today
Re: Low-Background Steel
#5Low-background lead is also sought after in shipwrecks [0]. With lead it isn't contamination from nuclear tests that's the issue, but natural radioactivity that needs hundreds of years to decay.
[0] https://www.theatlantic.com/science/archive/2019/10/search-d...
Re: Low-Background Steel
#6This comes up on HN every now and then, it is how I learned about low background steel. If this is new to you, you may also enjoy reading about the cesium content of wine: https://www.technologyreview.com/2018/07/19/141390/fukushima...
Is there a particular trigger for this post?
Is this a case of someone stumbling into the concept and wanting to share it with the world? Is there some trend in SV around low-background steel right now?
Genuinely curious about the phenomenon of posts around topics that have a great deal of understanding and aren’t necessarily trending in the general news cycle.
Re: Low-Background Steel
#7Im always curious how we will send messages to future civilizations. How will we ensure we’ll be remembered or even noted in 10,000, 100,000, 1 million years? How can we prevent the same disaster(s) that eventually wipes our civilisation out from repeating again in future intelligent generations (human or otherwise) Could environmental markers like these be the way? After all, it’s how we look at the past today
We already know what can last for literally millions of years: Life.
Maybe we could encode some information in birdsong, tree rings, or the matting patterns drawn by fish in the seafloor. :)
Re: Low-Background Steel
#8The scene of the battle of Midway would also hold a hoard of nice steel (the Japanese lost a lot of ships including aircraft carriers). I understand that Scapa Flow has been heavily salvaged with only 7 out of 52 ships still down there.
Re: Low-Background Steel
#9The scene of the battle of Midway would also hold a hoard of nice steel (the Japanese lost a lot of ships including aircraft carriers). I understand that Scapa Flow has been heavily salvaged with only 7 out of 52 ships still down there.
How deep are the sunken ships at Midway?