this post was submitted on 08 Jul 2024
266 points (97.5% liked)

News

23406 readers
3032 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 1 year ago
MODERATORS
 

WASHINGTON (AP) — The new Sentinel nuclear warhead program is 81% over budget and is now estimated to cost nearly $141 billion, but the Pentagon is moving forward with the program, saying that given the threats from China and Russia it does not have a choice.

The Northrop Grumman Sentinel program is the first major upgrade to the ground-based component of the nuclear triad in more than 60 years and will replace the aging Minuteman III intercontinental ballistic missile.

It involves not only building a new missile but the modernization of 450 silos across five states, their launch control centers, three nuclear missile bases and several other testing facilities.

The expansiveness of the program previously raised questions from government watchdogs as to whether the Pentagon could manage it all.

Military budget officials on Monday said when they set the program’s estimated costs their full knowledge of the modernization needed “was insufficient in hindsight to have a high-quality cost estimate,” Bill LaPlante, under secretary of defense for acquisition and sustainment, told reporters on a call.

The high cost overrun triggered what is known as a Nunn-McCurdy breach, which occurs if the cost of developing a new program increases by 25% or more. By statute, the under secretary of defense for acquisition then must **undertake a rigorous review of the program to determine if it should continue; otherwise the program must be terminated. **

you are viewing a single comment's thread
view the rest of the comments
[–] roguetrick@lemmy.world 3 points 4 months ago* (last edited 4 months ago) (1 children)

H bombs don't use tritium for their main fusion stage. Even Castle Bravo used Lithium-6. Tritium was used in initiators to increase neutron flux and as a fission booster for dial a yield (once again, to increase neutron flux). Both of those are just as important for fission weapons as they are for fusion.

Importantly, alpha decay creates helium pockets which is a neutron moderator and screws up the bomb.

[–] AngryCommieKender@lemmy.world 5 points 4 months ago (1 children)

And Lithium-7 accidentally. They didn't realize that the Lithium-7 would produce a fuckton more tritium, which is how a 4-6 Megaton estimated yeild became a 15 Megaton actual yeild, causing us to basically nuke our own civilians and some Japanese civilian sailors.

[–] roguetrick@lemmy.world 2 points 4 months ago* (last edited 4 months ago) (1 children)

Yeah, they thought lithium-7 was just junk that was left over because they couldn't completely do isotope separation yet. Whoopsie daisy, looks like we irradiated a whole shitton of sodium and blew it all over the place along with our fission products from more completely fissioning the uranium tamper.

Incidentally that's why Russia's nuclear torpedo was called a radiological weapon. It wasn't necessarily salted with cobalt, just the seawater is salted enough that when you neutron activate it you get a very nasty short lived gamma emitter that'll ruin your day if you get sprayed with it just as much as any fission product.

See test Baker from Operation Crossroads, which wasn't even a damn fusion bomb. They kept the sailors trying to clean the ships with goddamn radioactive water. https://en.m.wikipedia.org/wiki/Operation_Crossroads#Induced_radioactivity

[–] AngryCommieKender@lemmy.world 2 points 4 months ago

On the one hand, yeah, more civilians need to know about this shit.

On the other hand, we really don't need civilians knowing how to do this shit once we finally overthrow the vampires that are in control. Seriously. Dragons would have stopped extracting shit before now, even Adam Smith would have... I dunno what's going on at this point.