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Eric Loh

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Posts posted by Eric Loh

  1. 40 minutes ago, renaissanc said:

    It sounds like Iranians want another 40+ years of tyranny. Perhaps people get so used to a bad economy and tyranny that they can't imagine anything better.

    Nationalistic fervor when the country is attacked by an external enemy. Even if there is regime change, Iranians will never forget the unlawful attacks from Israel and US. They will be more reasons to have nukes. The attacks have made the situation worse not better. 

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  2. 3 minutes ago, thaibreaker said:

    Agree. As long as the Russian demands are too crazy to be accepted by Ukraine, this will probably not end with a peace agreement. A cease fire one day, of course, but it's per now difficult to see any solution here, unless Russia willingly accept a different agreement, or withdraw because of internal affairs, a coup or an economical breakdown.

    Will be like North and South Korea armistice. Technically still at war but not a peace treaty. But don't see this happening under Putin. He has to go one way or the other for a truce in fighting. 

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  3. 2 minutes ago, Bkk Brian said:

    So they spend millions enriching it to 60% because their intention was to then reduce it to 3-5%.......LOL. What planet are you on?

     

    In the mean time its still possible to get a nuclear weapon without enriching to 90% as 60% is enough for a basic weapon.

     

     60 percent HEU stock alone is enough material to fuel at least nine nuclear weapons without further enrichment to weapons grade. While these more rudimentary, or “crude,” weapons would be too large to mount on a ballistic missile, Tehran could still test them and threaten Israel with attack by delivering them via truck or shipping container.

    https://www.fdd.org/analysis/2025/06/23/location-of-irans-highly-enriched-uranium-uncertain-but-it-likely-cannot-build-nuclear-weapons-now/

    You never read well. I didn;t say they enrich to 60% for the purpose of downblending. 

     

    60% cannot be use to make a useful nuclear bomb. What planet you on.

  4. 1 minute ago, mikeymike100 said:

    Wrong again! For reactors only 3-5% enrichment is needed!

    For most nuclear reactors, particularly light-water reactors (LWRs) like pressurized water reactors (PWRs) and boiling water reactors (BWRs), uranium enrichment levels typically range from 3% to 5% uranium-235 (U-235). This is sufficient for sustaining a controlled nuclear fission chain reaction to generate heat for electricity production.

    Neither is 60% enriched uranium weapon grade and could be down blended to 3-5%. 

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  5. 28 minutes ago, rabas said:

     

    How much, the forgotten question.  Most of the radiation is alpha particles that barely penetrate anything.  So how much gamma ray radiation reaches the surface through 80 meters of limestone? Even ignoring shielding already used in the facility so that people work in safely. I wait your calculations. My guess is nothing detectable beyond 30m.

    You probably right about Alpha particles because they are relatively large and charged, causing them to interact strongly with matter and lose energy fast. Gamma radiation penetrates rock far better than alpha. Beta is between alpha and gamma in terms of rock penetration. 

  6. 5 minutes ago, Bkk Brian said:

    Suggest you read about the Israeli strike on the Natanz nuclear site and pay attention to what the IAEA says about it with regards to radiation inside and not outside.

     

     

    IAEA issued an update, saying that based on continued analysis of high- resolution satellite imagery collected after the attacks on the nuclear site at Natanz, the Agency has identified additional elements that indicate direct impacts also on the underground enrichment halls at Natanz.

    There has been no radiological impact outside the Natanz site, but circumscribed radiological and chemical contamination inside the enrichment facility, Director General Grossi reported.

    https://www.iaea.org/newscenter/pressreleases/update-on-developments-in-iran

    What I alluded to is that the bulk of the enriched uranium has been removed and not damaged which is reason no signs of radiation was detected. The damages of the sites may still have remants of small amount of uranium in the centrifuges that caused chemical release inside the affected facilities

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  7. 11 minutes ago, rabas said:

     

    Doesn't indicate much. Uranium is not very radioactive, otherwise it would not survive billions of years since it was created in some far away neutron star collision. I used to have a quarter pound on my desk for years. Bury some uranium under a mountain and see what you get.

     

    Significant uranium contamination above ground would only confirm total obliteration.

    These are 60% enriched uranium which can emit alpha, beta and gamma radiation. Natural uranium are radioactive and require careful handling. Even buried under ground, it can still emit radiation. 

  8. 31 minutes ago, Bkk Brian said:

     Iranian officials downplayed the attacks

     

    Yes they would.

     

    Its quite possible that the US in its development of the bombs were aware of this no? After all they had these plans in place for years, it was not done on the back of a fag packet last week without knowing of Irans concrete.........

    They may developed the bomb to be effective in different condition but not tested. They will have to wait for the intel damage assessment and improve on the bombs. 

  9. 21 minutes ago, candide said:

    It seems that high performance concrete developed in Iran may have protected nuclear sites

     

    In a First, America Dropped 30,000-Pound Bunker-Busters—But Iran’s Concrete May Be Unbreakable, Scientists Say

    https://www.yahoo.com/news/first-america-dropped-30-000-205300766.html

     

    This news made me curious, and I found this article, from 2012.

     

    "Civil engineers in Iran have two major problems that their building materials need to be able to deal with. The first is earthquakes. The other is bombs.

    As a result, the country has developed a particular expertise in making some of the toughest concrete in the world. The pinnacle of its development is known as Ultra-High Performance Concrete (UHPC), which contains powdered quartz, but the country's researchers are also working on integrating other types of fibres and nanoparticles to toughen the substance yet further."

     

    Iran develops ultra-high-performance quartz-infused concrete

    https://www.wired.com/story/iranian-concrete/

     

    There was also an article from the economist but it's under PW

    https://www.economist.com/science-and-technology/2012/03/03/smart-concrete?

     

     

    UHPC and also the diamond shape of the design that can divert the missile entry trajectory away from the nuclear sites. 

  10. 15 minutes ago, SunnyinBangrak said:

    Iranian state tv confirming Trump's ceasefire. Pls stop your misinformation borne out of irrational hatred for DJT.

     

    https://www.skynews.com.au/world-news/global-affairs/iran-state-tv-confirms-trumps-ceasefire/video/1589c1e66c521a387adae576b28f5578

    I hope and pray that the leaders of Israel and Iran will made their official announcement not state TVs.

     

    This from BBC.

     

    Neither country has confirmed the ceasefire - Iran says if Israel stops its attacks, Iran will also bring an end to its strikes; Israel is yet to comment

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