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fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

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Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

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    Fermat's Library‏ @fermatslibrary 1 Oct 2018
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    The nuclear age noticeably increased the background radiation in the air. In fact, steel produced prior to the Trinity tests (1945) is called Low-Background steel b/c it is measurably less radioactive. This steel is used in: geiger counters, aeronautical sensors, medical devicespic.twitter.com/cOkF8wqkcZ

    6:18 AM - 1 Oct 2018
    • 393 Retweets
    • 1,215 Likes
    • 卐 NewBeeTree nyp just thinking Tommie Jim 𝒆𝒍𝒆𝒄𝒕𝒓𝒐𝒉𝒆𝒊𝒏𝒛 Colores Lords Sirs Forensics Keiths Barhams OBE CBE MBE Enclave Research
    14 replies 393 retweets 1,215 likes
      1. New conversation
      2. Jostein Berger Olsen‏ @Jos_ols 1 Oct 2018
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        Replying to @fermatslibrary

        Sources??

        2 replies 0 retweets 1 like
      3. Marla Beard‏ @MarlaBeard 1 Oct 2018
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        Replying to @Jos_ols @fermatslibrary

        http://lmgtfy.com/?q=low+background+steel …

        1 reply 0 retweets 16 likes
      4. 1 more reply
      1. Mathis O Riehle‏ @morenorse 1 Oct 2018
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        Replying to @fermatslibrary @DanWalkerLab

        Wow

        0 replies 0 retweets 2 likes
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      1. 司徒‏ @szetoinsitu 1 Oct 2018
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        Replying to @fermatslibrary

        I suspect the latest in WW2 shipwreck theft is probably going to the low background steel market, or people are committing sea wargrave desecration for scrap value.

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      1. Karol Turbiarz‏ @KKZiomek0 1 Oct 2018
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        Replying to @fermatslibrary

        What?

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      1. Accendi Inc.‏ @AccendiI 1 Oct 2018
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        Replying to @fermatslibrary

        Very interesting if true. What is the Delta between the pre & post Trinity test measurements (on average)?

        0 replies 0 retweets 0 likes
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      2. Jef Poskanzer‏ @jefposk 1 Oct 2018
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        Replying to @fermatslibrary

        I've wondered if the recent demolition of half of the San Francisco-Oakland Bay Bridge, built 1933-1936, has saturated the market for low-background steel.

        1 reply 0 retweets 0 likes
      3. 司徒‏ @szetoinsitu 1 Oct 2018
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        Replying to @jefposk @fermatslibrary

        Probably cheaper than using Scapa Flow steel from WW1 High Seas Fleet scuttling

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. Mark Cojuangco‏ @markcojuangco 1 Oct 2018
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        Replying to @fermatslibrary @gionninanni

        You ought to make clear that the increase is from weapons and atmospheric bomb testing. What are the main trace isotopes in today’s steel ?

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      2. 418: No Coffee 4 U  🤖‏ @ramriot 1 Oct 2018
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        Replying to @fermatslibrary

        Also for naturally acquired radioactivity. Lead mined today is useless for shielding sensitive detectors, but lead mined 2000y ago & stored under 50m of water is acceptable. Thus CERN has a budget for archaeologists to excavate Roman wrecks from the seabed.

        1 reply 13 retweets 37 likes
      3. Larsson  🌕‏ @ctoLarsson 1 Oct 2018
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        Replying to @ramriot @fermatslibrary

        Wow amazing facts that I had no idea about.

        0 replies 0 retweets 1 like
      4. End of conversation

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