Recent comments in /f/explainlikeimfive
burrbro235 t1_j68bdro wrote
Reply to comment by hyzermofo in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
That hertz my feelings.
ImAScientistToo t1_j68b9k1 wrote
When I was an EMT we got a call for a house that smelled really bad. This was in the country so the houses were far apart and the neighbors called it in. When we arrived in the ambulance we could smell it inside the ambulance as soon as we turned into the driveway. I remember because we had just picked up lunch and I was eating fried chicken. The smell was so bad I couldn’t eat fried chicken for years without thinking about it. The man lived alone and had no family and no one to check on him. He died watching TV and was still sitting in his recliner. He’s body had decomposed enough that his head sank down into his chest cavity. It was the most awful thing I ever smelled. The coroner later told us he had died around 6 months ago. In all my years I’ve never seen a naturally mummified body. The humidity in southern Louisiana is too high to allow it to happen naturally.
AgentOrangeMD t1_j68b9gu wrote
Reply to comment by hyzermofo in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Run amok? Like the people of Sherwood?
thetomahawk42 t1_j68a1cj wrote
Reply to comment by Adghar in ELI5: How does ChatGPT work? by Zurbinjo
It's important to note that ChatGPT doesn't "understand" things in the same way we do, and doesn't "think". So it does tends to get a lot of stuff wrong.
That being said, it's quite a good bit better than previous attempts at similar things.
en1mal t1_j689ne9 wrote
Reply to comment by _ShakashuriBlowdown in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Yeah "water purity" is a grey zone, lots of scams. When I was young I earned some cash as a handyman. The stuff some people wanted me to install in their water system was baffling. Especially since I live in an european country with probably the best tap water quality in the world.
edit: just watched the vid, hillarious, they are just disolving the toxic metal particles in the water holy moly and use distilled non conductive water for the "proof". Yay humanity!
aaaaaaaarrrrrgh t1_j689kkh wrote
Reply to comment by missthingxxx in ELI5: How is caesium-137 used in mining operations? by kitsunesan1029
Wouldn't they just drive the route with a Geiger counter and see where it goes crazy?
https://www.reuters.com/world/asia-pacific/search-underway-radioactive-capsule-missing-australia-2023-01-28/ for context btw
unimportantthing t1_j689jzj wrote
Reply to comment by mmmmmmBacon12345 in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Electricity is so bad at killing microorganisms in small amounts that in lab sciences we actually use it to introduce new DNA into them through a process called Electroporation. Basically, you send electricity into a solution that contains your microorganism and the new DNA you want it to have, and you zap the solution to cause pores to form in its cell membrane. These holes are big enough to allow the DNA to enter. It’s a very useful technique.
mrmemo t1_j689gep wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
So we can't use electrical activity per se, but we can use electron radiation (Beta irradiation) to sterilize food.
You shoot an electron beam at the fruit and it kills microorganisms living inside. The fruit doesn't rot as fast now!
Downside, you're probably killing the good microorganisms as well. Oops.
Flair_Helper t1_j6899kc wrote
Reply to Eli5: if cardio makes the heart stronger by increasing heart rate and blood pressure, why do energy drinks damage it? by CrammedMeat
Please read this entire message
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wingsofirisheagle413 t1_j6891ov wrote
Reply to comment by Moor3z in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
Just a small clarification because it made my slightly hungover head hurt more, going to have a tough time using a turbine to compress air. Typically we refer to turbines as extracting energy from the airflow, which in the turbojet or turbofan case is used to spin the fan/compressor.
stratusmonkey t1_j688wbx wrote
Reply to comment by jakeofheart in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
UV light
_ShakashuriBlowdown t1_j688uhy wrote
Reply to comment by en1mal in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
There are all these videos (I'll try and edit one in if I find it) of Chinese "water boilers", which are just + and - electrodes that you put into water. The problem is, even in "clean" water, the electrodes themselves begin to electrolyze into the water. The tap water isn't clean either, so all the minerals begin electrolyzing and depositing onto the cathode as well.
EDIT: This is used in a scam to show that one's water is actually impure, and that one should buy the salesman's water filter. https://www.youtube.com/watch?v=ASnLL6ebaco
igor33 t1_j688jni wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
This is not ELI5 but.....Ozone is produced when oxygen (O2) molecules are dissociated by an energy source into oxygen atoms and subsequently collide with an oxygen molecule to form an unstable gas, ozone (O3), which is used to disinfect wastewater. Most wastewater treatment plants generate ozone by imposing a high voltage alternating current (6 to 20 kilovolts) across a dielectric discharge gap that contains an oxygen-bearing gas. Ozone is generated onsite because it is unstable and decomposes to elemental oxygen in a short amount of time after generation. Ozone is also commonly used to disinfect bottled drinking water, as it is both soluble and effective at killing microorganisms via the oxidisation of their cell membranes. (So you're not that far off....)
jsveiga t1_j688jh4 wrote
Reply to comment by King_XDDD in ELI5: How does ChatGPT work? by Zurbinjo
I can't refrain from not denying that it isn't not, because it maybe would or maybe would not directly break the subreddit rules. But I would say that I could not resist the irony. And if it saves me from being banned, I must say that I did type all the comment, and that 1/3 of the paragraphs are mine.
TheEdExperience t1_j687way wrote
Reply to ELI5: Why are we the only species that has to pay to live. I mean we also have to pay to keep other animals alive. by Pretty-Membership430
We don’t pay to live. We work to live and so does every other animal. A lion hunts for food. A Beaver builds it’s dam for shelter.
Humans have figured out that if you specialize in a single activity, and do it better than anyone else, people will trade you for that skill.
For instance one person is a really good house builder and another can grow more food on a plot of land than anyone else. They trade building a house for food or vice versa.
At some point we invented money to represent the value of our work. So now we don’t have to build a house for someone that doesn’t need it but just pay them with dollars. This makes everyone’s value more easily transferable. You don’t need to find someone with excess of what you need and just happens to need the thing your providing.
Even without money, you would be hunting, gathering and building in a state of nature. Money and or paying just makes things easier.
WhiteCloudyPlanet t1_j686wm8 wrote
Reply to comment by murmurat1on in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Lmao holy shit i meant the cells
Random_Dude_ke t1_j686vpo wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
That is how they kill harmful algae in the lake in my city.
Apply current across electrodes suspended from a motor boat cris-crosing the lake slowly.
RandomRexiness t1_j686o07 wrote
Typically, journals are for reflections, aspirations, hopes, dreams, etc. Diaries are pretty much just a recollection of the day’s events.
shinn91 t1_j686hy1 wrote
Reply to comment by hyzermofo in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
yes
[deleted] t1_j686hop wrote
Reply to ELI5: Why are we the only species that has to pay to live. I mean we also have to pay to keep other animals alive. by Pretty-Membership430
Money is just an abstracted token of your labor that you trade for goods or labor that you are otherwise not able to get/do for yourself.
It would cost you nothing to wander onto public land and subsist for yourself. But if you are not specialized at it, then you are going to be fighting tooth and nail just to exist.
[deleted] t1_j686ez2 wrote
[deleted]
TheRunningMD t1_j686aul wrote
There are a lot of reasons, if we can separate them generally into two categories:
- What the actual fat does to the body
- How people become obese
For the first - The hormones released by fat can cause many problems, the fat itself can literally squeeze and crush the internal organs (that is what happens with OSA), the weight ruins your joints, etc..
The second - No one becomes morbidly obese by eating carrots and apples. You need to consistently be eating really shit food for a long time in high quantities to become truly obese (theoretically it is just calories in and out but realistically you can’t actually overeat on cabbage). These types of foods have a great impact on hormones, your blood vessels, your gut microbiome, and so many other factors that basically negatively impact almost every system in your body. This paired with being less mobile (also due to step one) can have a dramatic impact on your cardiovascular system.
To really explain everything would take literally hours, but basically these two categories are responsible.
mfb- t1_j6866kd wrote
Reply to comment by missthingxxx in ELI5: How is caesium-137 used in mining operations? by kitsunesan1029
If they don't find it then it's probably going to lie somewhere in the desert for centuries until essentially all the caesium has decayed (99.9% over 300 years) or the container gets damaged and it's spread out over such a large area that it's harmless, too.
dummypod t1_j68664t wrote
Reply to comment by frakc in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Ok I need an ELI5 on this
violet1551 t1_j68bka8 wrote
Reply to comment by hyzermofo in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
It will certainly be electrifying