Spyke
youshouldknow·You Should Knowbyroofuskit

[META] YSK Two rules have been added to this community

Why YSK: If you violate the rules, you and/or your posts may be removed.

First I would like to state that I have avoided changing the rules as I felt my role as the replacement mod was to step in and keep the community going as is. I didn't start this community, it's not mine, it's ours. After giving it some time I feel these two changes are important for moderation and my personal sanity.

The new rules are as follows:

Rule 12- Linking directly to a video as a source is not acceptable.

The reason I have added 12 is because overwhelmingly posts linking directly to videos violate one or more rules. They are always low effort and bring down the quality of posts in the community. This saves you having to watch the video to report it, and saves me having to watch the video to remove it.

Rule 13- If you file a report, include what specific rule is being violated and how.

I have made this a rule because of an annoying minority that spam their apps "violates community rules" button and then argue with me when i ask them to explain the rules violation in their reports. This text was already included at the bottom of the sidebar, but I have promoted it to an official rule for those annoying few.

View original on lemmy.world
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youshouldknow·You Should KnowbyNovi Sad

YSK Drowning Doesn’t Look Like Drowning

web.archive.org (no paywall)

via

Every summer I repost this article on how to spot drowning. Please read it and pass on. In the last few years I’ve had SIX messages from people who saved a kid’s life after clicking on the link from my feed.

YSK Drowning Doesn’t Look Like Drowninghttps://slate.com/technology/2013/06/rescuing-drowning-children-how-to-know-when-someone-is-in-trouble-in-the-water.htmlOpen linkView original on feddit.org
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youshouldknow·You Should Knowbybridgeenjoyer

YSK: Many of your feelings of the modern age are probably described here

https://ia803206.us.archive.org/26/items/the-dictionary-of-obscure-sorrows/The%20Dictionary%20of%20Obscure%20Sorrows.pdf

Never have I felt so understood. I am so glad/sad I know of this now.

Excerpt:

adomania

n. the sense that the future is arriving ahead of schedule, that all those years with fantastical names like '2013' are bursting from their hypothetical cages into the arena of the present, furiously bucking the grip of your expectations while you lean and slip in your saddle, one hand reaching for reins, the other waving up high like a schoolkid who finally knows the answer to the question

View original on sh.itjust.works
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YSK sharing a YouTube video could be revealing your identity

When you share a YouTube video using the share button it adds “si=some_unique_code” to the URL. If you don’t remove that it shows your personal account to anyone who receives it so that they can chat directly with you. For a lot of people this is their real name.

I’ve seen it all over Lemmy so I figured I’d mention it here! You only need the stuff before the question mark in the URL to let others see the video.

This can also be turned off in your YouTube settings under the privacy section. The setting is “channel visibility for shared links”. It will still add the si code for tracking though.

View original on piefed.zip
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YSK that archive.is links (and others listed below) are no longer trusted. archive.org is unaffected / still trusted.

  • They have been found to have been altering the contents of the archived articles.
  • They have DDoSed a server using our browsers when we visit their site
  • Wikipedia has blacklisted it
  • It's DNS is banned widely

Guidance published ... asked editors to help remove and replace links to the following domain names used by the archive site: archive.today, archive.is, archive.ph, archive.fo, archive.li, archive.md, and archive.vn. The guidance says editors can remove Archive.today links when the original source is still online and has identical content;

Recommended alternatives include: Internet Archive Ghostarchive Megalodon

The Wikipedia guidance points out that the Internet Archive and its website, Archive.org, are “uninvolved with and entirely separate from archive.today.” The Internet Archive is a nonprofit based in the US.

ArsTechnica Source

View original on lemmy.world
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youshouldknow·You Should KnowbyKabe

YSK that there is now a huge online archive of videos/photos detailing the genocide in Gaza.

Content Warning: a lot of this stuff is obviously NSFL

Don't go through this footage if you're not fully prepared to see things you may never be able to unsee.

It includes:

  • 64,537 videos
  • 17,905 photos
  • Ability to download individual videos
  • Searchable index
  • Exhaustive sources list (300+ journalists)
  • Geolocation data
  • Livemap with minute to minute updates
  • Victim list

In a news media environment that doesn't want us to know/remember that a genocide is even happening in the first place, archives like this will preserve the record for future generations and ensure that the victims of this slaughter are not erased from history.

YSK that there is now a huge online archive of videos/photos detailing the genocide in Gaza.https://archivegenocide.com/Open linkView original on lemmy.world
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youshouldknow·You Should Knowbysupersquirrel

YSK: There Are About ~2 Billion Muslims On Earth

Why do I think You Should Know?

One only need look to the injustices done to the Muslim community of New York City by the NYPD and others for an example of what the consequences of not understanding a diversity of people for what they are.... Any New Yorker worth their salt understands the importance of Muslims to New York City, to act like because some people from a different country who just happened to have the same religion... only vaguely? committed an act of terror would mean that Muslim New Yorkers liked it anymore than any other New Yorkers did? Yet history repeated itself and Mosques were treated as compounds to be monitored like the US did to US Japanese descendant populations in WW2....

What I mean by that point is that I think right now it is important to understand the nuance to groups that people want us to simplify down to a soundbite that serves as a justification.

The Website I linked is a University Of Michigan curated list of resources to learn about Islam (and I mean that in a very basic sense of learn about the history of it) that is mostly focused on the resources the University provides but is nonetheless a really compact extensive list you can quickly use as a starting point if you want to research something.

This is also a nice simple website I found that visualizes populations of Muslims on earth in a nice easy to understand way.

https://worldpopulationreview.com/country-rankings/muslim-population-by-country

Personally growing up in the US I know until pretty late into my life that I simply had no idea there were so many Muslims on Earth. Living through the post 9/11 years I would often hear statements said about Muslims or people who follow Islam from people who didn't really know any Muslims and the day I learned that there were that many Muslims it hit me as really unintuitive.

~2 Billion people is an incredible amount of human beings, there is no way even if you had infinite lifetimes to try that you could meaningfully reduce that many people down to anything other than the same spirit any human being is born with.

I don't mean this post in aggressive way, I just think genuinely more people should know in Christian predominant nations that when somebody starts generalizing about Islam or Muslims the correct response is to call attention to that fundamental logic error. Sure, criticize Islam, analyze it, talk about the politics of it, but be specific and be curious about the actual nuance to the story!

https://guides.lib.umich.edu/religion/islamicstudiesOpen linkView original on sopuli.xyz
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youshouldknow·You Should Knowbysupersquirrel

YSK There are about ~2 Billion Muslims on Earth

Any time someone says "Muslims always" or "Islam is inherently... ____" return to this basic fact. Not only is that bigotry, the basic reality is that there are so many Muslims on Earth living in so many different places with different cultures that any kind of generalization is at a face level absurd like saying the world is flat.

YSK There are about ~2 Billion Muslims on Earthhttps://www.pbs.org/video/the-history-and-practice-of-islam-on-earth-and-beyond-pbk4a3/Open linkView original on sopuli.xyz
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youshouldknow·You Should Knowbyunglueclass23

YSK about consumerrights.wiki

"Creating the internet's largest dedicated repository of information on anti-consumer practices, one edit at a time."

I think it's important to have one central, accessible place documenting every scandal, controversy, screw-up a company has ever pulled. It allows you to make better choices and to better cut through the PR bullshit of said companies.

However, consumer rights wiki doesn't come up when I search for "[company X] controversies" or similar terms in search engines (based on my limited testing).

That's why I feel it's important for more people to know about this site.

Good introduction video : INTRODUCING THE CONSUMER PROTECTION DATABASE: EXPOSE EXPLOITATION & HOLD COMPANIES ACCOUNTABLE! - YouTube

YSK about consumerrights.wikihttps://consumerrights.wiki/w/Main_PageOpen linkView original on programming.dev
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youshouldknow·You Should Knowbyiocase

YSK refrigeration can be done using heat, which can then power district cooling systems.

Absorption coolers use heat to regenerate their refrigerant. Two common types are a water vapour-LiBr chiller, and an ammonia-water chiller (in fact Einstein patented a mini bar chiller design still used today that has no moving parts, using just helium or hydrogen and gas absorption/evaporation to move refrigerating gasses around)

Single effect chillers have a low Coefficient of Performance (CoP) roughly around 0.4-0.6, meaning for every watt of heat you apply to a single effect chillers, you move 0.4-0.6W of heat, but they only need a minimum of 90⁰C in heat to power them.

Double effect chillers can reach 0.9-1.2 CoP.

Flue gasses are typically hotter than 90⁰C, so you'll often see absorbers part of combined heat and power systems. Cooling in the summer, heating in the winter. All using waste heat from power generation.

What I find the most fascinating about them is they work using heat. The only power you need to apply is for a few pumps to move fluids around at low pressures, otherwise the primary refrigeration energy comes from heat regenerating the refrigerant.

I've often wondered what a district cooling system using these would get for efficiency if you colocated it with something energy hungry like a cement kiln or glass kiln.

Video of how a double effect chillers works

District cooling video

Edit: these are used already for district cooling, just usually for a campus like a university or government complex. The big benefit is you can run them on marginal heat sources, even off of low grade geothermal.

View original on lemmy.zip
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youshouldknow·You Should Knowbynetvor

YSK February 2027 calendar will be compact (for monday-starting weeks)

You should know this ahead to fully enjoy that beauty of compact, mathematically sound week chart, and perhaps the accompanying momentary illusion that world makes sense again.

The next opportunity to enjoy most compact possible calendar page will be in 2038, so don't miss it!

(Bonus: if you notice that 1st week is week 5 so apparently January 2027 also has 4 weeks--what gives? That's because in ISO week numbering, first three days of January 2027 count as week 53 of 2026. In other words, week 1 of 2027 starts on January 4th.)

If your calendar starts with Sunday, this past February of 2026 was actually compact, and the next one is in 2037.

View original on lemmy.world
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youshouldknow·You Should KnowbyAdmiral Patrick

YSK: Someone is creating sockpuppet account after sockpuppet account self-promoting an AI slop plagiarized news site.

They're trying really hard to make their AI-plagiarized slop "news" site happen. You'll see posts linking to primestories24 [dot] com but they're AI slop regurgitating likely legit news articles. Every "reporter" has some generic profile that is most likely the system prompt used for everything they "write".

If you see a post to that domain, report it as spam. The accounts all look similar to this:

This list isn't comprehensive.

Update: They are now using sockpuppet alts to vote/boost their posts. Just found @[email protected] that way and, surprise surprise, it was registered the same time as the latest batch.

Note: Technically the above is violating rule 7 if you consider spambots to be members. I don't, but if this is a problem, let me know, and I'll remove that part.

The domain was registered in May of 2026 and is roughly when these accounts started popping up.

   Domain Name: PRIMESTORIES24.COM
   Registry Domain ID: 3105727536_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.web4africa.net
   Registrar URL: http://hostafrica.com/
   Updated Date: 2026-06-19T10:01:29Z
   Creation Date: 2026-05-31T12:16:00Z
   Registry Expiry Date: 2027-05-31T12:16:00Z
   Registrar: Host Africa (Pty.) Ltd.
   Registrar IANA ID: 664
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.6465850088
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: DAN1.HOST-WW.NET
   Name Server: DAN2.HOST-WW.NET
   DNSSEC: unsigned

Admins, I'm aware Lemmy is severely lacking in moderation capability, but one thing it does have is domain blocking. That prevents posting to those domains and it now seems to prevent links to those domains from federating in.

View original on dubvee.org
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youshouldknow·You Should KnowbyTheTechnician27

YSK that the iOS app Go Map!! has access to StreetComplete's "quests"

Some background context (assuming you're already roughly familiar with OpenStreetMap):

  • StreetComplete is an Android-exclusive app that acts as an extremely trimmed-down, gamified way to contribute to OpenStreetMap. You don't contribute new structures, but rather you fill in details about existing ones.
  • It'll ask you questions about existing structures like "How many levels does this building have?" or "What is the surface of this bike path?" These are called "quests", and it's expected (see: Bro Code, Division 6, Chapter 5, §32) that you're either there in person surveying or have been there recently and absolutely know that you're correct. The visual presentation is extremely smooth and beginner-friendly.
  • This is helpful not just to new users but to people who don't ever want to get deep into editing the map. (It can also help regular contributors notice small details they accidentally missed in an area.) A bunch of non-power-users contributing small details goes a long way to making the map actually robust and arguably better than services like GMaps – instead of just something that a few privacy/FOSS advocates vocally use and giant corporations silently use.
  • Go Map!! is a robust editor for iOS, kind of like an analog of Vespucci on Android.

However, I learned that Go Map!! isn't just a robust editor; you can also use it to contribute to StreetComplete's index of quests.

Why YSK: if you or a friend has an iOS device, this is a great way to contribute to OpenStreetMap with a very streamlined UI that acts more like a game than it does mapping software. I didn't know this before and would often only bring up StreetComplete and hope the other person has Android.

View original on lemmy.world
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youshouldknow·You Should KnowbyAniki

YSK about the resource consumption of datacenters

The report finds that data centers consumed about 4.4% of total U.S. electricity in 2023 and are expected to consume approximately 6.7 to 12% of total U.S. electricity by 2028. The report indicates that total data center electricity usage climbed from 58 TWh in 2014 to 176 TWh in 2023 and estimates an increase between 325 to 580 TWh by 2028.


I see a lot of people arguing about datacenters and their resource consumption. So i think it is good to have actual numbers on how much resources are being consumed. This post only includes energy consumption because i'm too lazy to look up water consumption.

YSK about the resource consumption of datacentershttps://www.energy.gov/articles/doe-releases-new-report-evaluating-increase-electricity-demand-data-centersOpen linkView original on feddit.org
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youshouldknow·You Should Knowbysilly_goose

If you are coming from Reddit: YSK that Lemmy and Piefed have no karma. Don't delete your posts.

Some accounts are deleting their posts after a few downvotes. It's devastating on communities like c/asklemmy.

Lemmy doesn't track an account's karma like reddit. So, all downvotes will be isolated to your post or comment and won't affect your account—unless you wrote something truly horrible.

Remember lemmy is a community effort. Deleting a post also removes all comments on it. So you are not only robbing the effort others put in, you are actively removing knowledge from the fediverse. Others won't be able to find it through search and lemmy will seem lonelier than it already is.

View original on lemmy.today
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youshouldknow·You Should KnowbyWudi

YSK that people living in Bellevue, Issaquah and Redmond can apply for $500-$2,000 e-bike rebates

This summer, residents of Redmond, Bellevue, and Issaquah can apply to receive up to $2,000 off the purchase of a new e-bike.

https://www.redmond.gov/2537/E-Bike-Rebate-Program

https://bellevuewa.gov/city-government/departments/community-development/environmental-stewardship/transportation-electric-vehicles/pedal-forward-eastside

People from all 3 cities can apply from June 15 to June 29.

Recipients will be randomly selected.

To be notified when the application period opens, fill out this form

View original on feddit.uk
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