News
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.
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.
view the rest of the comments
While I agree we shouldn't be using them for jewelry, diamonds are factually very important and incredibly valuable to manufacturing.
They're the only thing hard enough to cut and shape tungsten carbide, which is instrumental in basically any complex machinery work.
the ones in tools are man made and they're a lot cheaper to buy
Depends on the tooling you're going for. Synthetic diamonds are great for creating abrasives, which makes up the majority of industrial diamond tools.
But for a lot of machining where you need a large cutting head, industrial diamonds are a little too small. I think most synthetic diamonds are less than a millimeter in diameter. They can be made larger, but they take a long time and aren't very cost effective.
The vast majority of diamonds mined are industrial grade, especially the larger ones. So you end up using a bit of both depending on your application.
Interestingly, moissanite (per the source referenced by the article) exceed diamonds in hardness ("toughness") as well.
I saw that as well, but I think cut hardness must be jewelers terminology. As far as actual hardness diamonds are a 10 on the mohs scale, moissanite is a 9.25, and tungsten carbide is usually around 9-9.5.