this post was submitted on 02 Jul 2026
306 points (99.7% liked)

Today I Learned

30412 readers
570 users here now

What did you learn today? Share it with us!

We learn something new every day. This is a community dedicated to informing each other and helping to spread knowledge.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must begin with TIL. Linking to a source of info is optional, but highly recommended as it helps to spark discussion.

** Posts must be about an actual fact that you have learned, but it doesn't matter if you learned it today. See Rule 6 for all exceptions.**



Rule 2- Your post subject cannot be illegal or NSFW material.

Your post subject cannot be illegal or NSFW material. You will be warned first, banned second.



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Posts and comments which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding non-TIL posts.

Provided it is about the community itself, you may post non-TIL posts using the [META] tag on your post title.



Rule 7- You can't harass or disturb other members.

If you vocally harass or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.

For further explanation, clarification and feedback about this rule, you may follow this link.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- Majority of bots aren't allowed to participate here.

Unless included in our Whitelist for Bots, your bot will not be allowed to participate in this community. To have your bot whitelisted, please contact the moderators for a short review.



Partnered Communities

You can view our partnered communities list by following this link. To partner with our community and be included, you are free to message the moderators or comment on a pinned post.

Community Moderation

For inquiry on becoming a moderator of this community, you may comment on the pinned post of the time, or simply shoot a message to the current moderators.

founded 3 years ago
MODERATORS
top 50 comments
sorted by: hot top controversial new old
[–] SaveTheTuaHawk@lemmy.ca 28 points 20 hours ago (4 children)

another bonus fact! CDN money has an embedded hologram that will project the denomination when a laser pointer is shone through it. great party trick.

[–] HugeNerd@lemmy.ca 2 points 12 hours ago

Look at Mr Moneybags here with a $100

[–] T00l_shed@lemmy.world 4 points 16 hours ago (1 children)

Annnnnd despite the mint saying there is no maple scent on the 100's$ was there lol

[–] M0oP0o@mander.xyz 2 points 15 hours ago (1 children)

People kept licking them, it was (is) a problem.

[–] T00l_shed@lemmy.world 1 points 15 hours ago (1 children)
[–] M0oP0o@mander.xyz 2 points 14 hours ago

At least the polymer ones can be cleaned and the dirt on them is just really on them and not like the cotton filth sponges.

[–] thelasttoot@lemmy.world 1 points 12 hours ago

This is awesome

[–] MrShankles@reddthat.com 1 points 16 hours ago

Nifty! And apparently it's a security feature

[–] Etterra@discuss.online 8 points 20 hours ago (1 children)

Is it the kind that need to be in the light for a few hours first? Because if so, I have some news about pockets.

[–] Buddahriffic@lemmy.world 9 points 19 hours ago (2 children)

Maybe it uses uranium to glow.

[–] Kolanaki@pawb.social 4 points 17 hours ago* (last edited 17 hours ago) (1 children)

replaces coin CMOS battery with nuclear coin

[–] Buddahriffic@lemmy.world 1 points 14 hours ago

Power plant owners hate it when you do this one simple trick.

[–] NottaLottaOcelot@lemmy.ca 2 points 16 hours ago

That’s a resource we do have…we are planning to slowly mutate ourselves to superiority

[–] minorkeys@sh.itjust.works 2 points 17 hours ago

Illumioonie?

[–] pedz@lemmy.ca 6 points 1 day ago (3 children)

This reminds me that ths US Defense Department issued a warning about the painted quarters because they thought it was spying tech.

https://www.cbsnews.com/news/alleged-canadian-spy-coin-deemed-harmless/

The odd-looking — but harmless — "poppy coin" was so unfamiliar to suspicious U.S. Army contractors traveling in Canada that they filed confidential espionage accounts about them. The worried contractors described the coins as "anomalous" and "filled with something man-made that looked like nano-technology," according to once-classified U.S. government reports and e-mails obtained by the AP.

[–] M0oP0o@mander.xyz 8 points 20 hours ago (4 children)

Americans are so wierdly ass backwards about currency tech.

Making bills out of not cotton? Fuck you

Making bills of different values different colours or sizes? Fuck you

Adding brail or addition security like hard to copy windows and holographic images? Fuck you

Coins coming in different styles? Fuck you

Coins above a 50 cent piece? Fuck you (unless it's a collectable).

[–] SaveTheTuaHawk@lemmy.ca 4 points 20 hours ago (2 children)

US money is counterfeit at such high levels, no one wants to bring in anti-counterfeit measures like other countries because an audit would bring bad news.

[–] AnUnusualRelic@lemmy.world 1 points 15 hours ago

But they can't be counterfeit, where would one find this elusive cotton?

[–] M0oP0o@mander.xyz 1 points 19 hours ago

It looks fake when not. They make fun of our money but the us's looks and is from another time.

[–] Nautalax@lemmy.world 2 points 17 hours ago (1 children)

Funnily you very rarely see the Sacagawea dollar coins in circulation the US (albeit more than the $2 billion) but we ship a massive number of those dollar coins overseas to Ecuador which officially uses USD. Incredibly common since many expenses there are in the couple dollars sort of range and you barely see $1 bills at all since many people refuse to accept worn-out bills.

[–] M0oP0o@mander.xyz 1 points 16 hours ago

Almost as if Ecuador knows how to money and the states is a wierd place.

[–] AnUnusualRelic@lemmy.world 1 points 15 hours ago

Two dollar bills? Obviously the work of the devil! Better burn them to be sure!

[–] yetAnotherUser@discuss.tchncs.de 3 points 19 hours ago (1 children)

Nah, I'm all for cotton for money bills. While they don't last very long, it's better than more plastic shit 100% of the time.

[–] M0oP0o@mander.xyz 3 points 19 hours ago (1 children)

As someone who had to fix the bank machines during both cotton and polymer, you are 100% crazy. Cotton notes are nasty and wasteful.

[–] yetAnotherUser@discuss.tchncs.de 1 points 18 hours ago (1 children)

You could view cotton notes as providing job opportunities :P

But still: I'd rather waste five times as many cotton notes than have even more plastic going around and being lost. At least lost cotton decays, whereas lost plastic will just stay around forever.

[–] M0oP0o@mander.xyz 2 points 16 hours ago

You ever have to clean anything that works with cotton bills? All that oil and dirt on your grubby hands is in those bills. Polymer bills don't absorb anything and unlike other plastics they do get collected and recycled (you know since they are money). And the dies and chemicals needed to make those cotton bills? Yeah not good.

[–] Buddahriffic@lemmy.world 3 points 17 hours ago

I wonder if this is indirectly admitting that they either considered or do spy via coins. Every accusation is an admission and all...

[–] SaveTheTuaHawk@lemmy.ca 1 points 20 hours ago

“filled with something man-made that looked like nano-technology

or, paint.

[–] 0ops@piefed.zip 47 points 1 day ago (1 children)
[–] pedz@lemmy.ca 10 points 1 day ago (1 children)

A---Aurora Borealis? At this time of year! At this time of day! In this part of the country! Localized entirely within your pockets?!?

[–] SaveTheTuaHawk@lemmy.ca 7 points 21 hours ago (1 children)
[–] bradboimler@lemmy.world 5 points 20 hours ago (1 children)
[–] davetortoise@reddthat.com 1 points 5 hours ago

Well Seymour, I must say, you are an odd fellow

[–] HeyThisIsntTheYMCA@lemmy.world 3 points 21 hours ago (2 children)

uh, before i lick this, how does it glow?

[–] SaveTheTuaHawk@lemmy.ca 3 points 20 hours ago

strontium aluminate.

[–] M0oP0o@mander.xyz 3 points 20 hours ago (1 children)

Likely not radium, at least I think we learned that lesson.

[–] NottaLottaOcelot@lemmy.ca 2 points 16 hours ago (1 children)

If I’ve learned anything in my 45 years, it’s that humans have a remarkably short memory and repeat past mistakes at a staggering rate

[–] M0oP0o@mander.xyz 2 points 16 hours ago

Well that one was a kinda big lesson. But yeah maybe radiation "cures" will make a comeback.

[–] JimVanDeventer@lemmy.world 12 points 1 day ago

I have so many of these. I mentioned to my boyfriend at the time that I thought they were neat. He swapped out every toonie in the till like this and gave them to me for months while they were in circulation.

I have been giving them out as souvenirs when I visit other countries, but maybe I should actually count how many I have and retire early.

[–] kibblebits@quokk.au 20 points 1 day ago (1 children)

Is that called a Gloonie? Glownie?

[–] minorkeys@sh.itjust.works 1 points 18 hours ago (1 children)
[–] kibblebits@quokk.au 2 points 17 hours ago (1 children)
[–] minorkeys@sh.itjust.works 1 points 17 hours ago (1 children)
load more comments (1 replies)
[–] SaveTheTuaHawk@lemmy.ca 1 points 21 hours ago (1 children)

Bonus! the Canadian mint actually mints coins for other countries. All euro coins for example.

[–] Jiral@lemmy.world 2 points 21 hours ago (4 children)

I couldn't find anything on that, do you have a source for the Canadian Mint making "all euro coins" and what that is intended to mean?

load more comments (4 replies)
load more comments
view more: next ›