Recent comments in /f/explainlikeimfive
r40k t1_j6907cl wrote
Reply to comment by s_m_m in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
In that case it's not the electricity that kills them, it's a product of a chemical reaction set off by electricity
[deleted] t1_j68yvdx wrote
poll_my_pants t1_j68yhw8 wrote
Reply to comment by jsveiga in ELI5: How does ChatGPT work? by Zurbinjo
The one that says “in more eli5 terms:”, amirite?
Ribbythinks t1_j68ycug wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Heat produced from electrical current (see: Amperature) is what causes tissue damage in organisms. It’s much more effective to use electrical energy create temperatures that are unfavourable than it is zap bacteria.
On another note, the US Army Corp uses electrical current in bodies of water to create invisible barriers for invasive species:
https://www.lrc.usace.army.mil/Missions/Civil-Works-Projects/ANS-Portal/Barrier/
Dysan27 t1_j68ybmp wrote
Reply to comment by koolaidman89 in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
and can only be used in short bursts.
The only engine ever designed to run on continuous after burner was the Pratt & Whitney J58 on the SR-71 afterburner. Though the J58 acts more as a ramjet with a turbojet stuck in the middle.
Dysan27 t1_j68y2r0 wrote
Reply to comment by n4rf in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
Those are ususaly to prevent damage due to too high pressure/temperature.
In a turbo fan there is air that is deliberately bypassed with the intention of adding to thrust.
One way to look at turbofans is that they are turbojets with an additional fan on the front to accelerate more air. So the point of the turbojet is now not to accelerate the air, but to power the fan that accelerates the air.
Haggls t1_j68xts2 wrote
Reply to comment by barking_at_cars in Eli5 why our brain sometimes out of nowhere brings embarrassing/bad moments or encounters you’ve had by barking_at_cars
I think there are, but from what I've heard, it's mostly subconscious, so we aren't really aware
Axolotl-Dog t1_j68xlee wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
In a way no: electricity can kill by stopping the muscles of the circulatory system, mainly heart and diaphragm, or burn due to high resistance. Microorganisms usually lack a circulatory system or are too small to provide any real resistance. And electricity doesn’t remove physical contaminates.
In a way yes: if you filter the water add salt and apply direct current you can make a weak solution of sodium hypochlorite or bleach (0.8% vs household/laundry bleach 5.5%). That can be used to disinfect other amounts of water. It’s a pretty controlled process and uses a lot of energy look up on-site generation for more info. Also, don’t drink bleach. Unless you have Covid lol.
Anecdotal experience: I was a pump operator for storm water and potable water systems. One of the older lift stations for storm water used 120 volt electrodes for its control circuit. So the wet well would have 120v in it. During maintenance periods we had to go in and vacuum out trash and sediments from the bottom. The water was not clean and you would find mosquito larvae swimming around. We also used on site chlorine generators for our drinking water wells.
[deleted] t1_j68xgh8 wrote
Reply to comment by n4rf in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
[deleted]
Turbulent-Respond654 t1_j68xa40 wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
https://www.espwaterproducts.com/understanding-uv-water-filtration-sterilization/
UV light can be used in a way similar to what you are asking.
I am not endorsing the above product. It's just the first Google search result that had an easy explanation.
OpenPlex t1_j68wy2j wrote
Reply to comment by Killaship in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
You might feel electrified to see yours on display, a spark of joy!
PrionBacon t1_j68vpa4 wrote
Your saliva (spit) provides a protective layer in your mouth to prevent bacteria from growing on the surface.
However, when you sleep at night, you produce less saliva so you don't drool or choke on your spit. Less saliva means the bacteria can spread over the surfaces of your mouth. The foul smell of morning breath is the waste emitted by the bacteria as they snack on any food remaining in your mouth.
If you leave your mouth open or breathe through your mouth at night, your mouth dries out faster and allows the bacteria to spread quicker.
Brushing your teeth and tongue helps get rid of the bacteria producing the foul smells.
[deleted] t1_j68usgd wrote
Reply to comment by steruY in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
[deleted]
ImReverse_Giraffe t1_j68ur3u wrote
Reply to comment by n4rf in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
Thrust not lift. Lift is made by the wings.
koolaidman89 t1_j68upm9 wrote
Reply to comment by steruY in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
That’s where fuel is dumped straight into the jet exhaust where it burns with oxygen that wasn’t consumed in the core of the engine. It functions like a rocket engine to generate additional thrust. Great for a burst of power but it consumes fuel very quickly and inefficiently.
CBMet t1_j68t1v8 wrote
Reply to comment by Sand_Trout in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
Thank you! That's really interesting!
Flair_Helper t1_j68sc6g wrote
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GreatArkleseizure t1_j68rzqz wrote
Reply to comment by Killaship in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
And some of them are just revolting.
Traininewe t1_j68rx6t wrote
Reply to comment by mmmmmmBacon12345 in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Like salt. Even the usual one, NaCl, dissolved in water and electrolyzed
appelsap1234 t1_j68rg0k wrote
Reply to comment by [deleted] in eli5: what is morning breath & why is it so relentless by [deleted]
Sounds legit though!
Flair_Helper t1_j68r23s wrote
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Your submission has been removed for the following reason(s):
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[deleted] OP t1_j68qqzo wrote
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dontmentiontrousers t1_j68q2ej wrote
Reply to comment by Davebobman in ELI5: How do we define the boundary between earth’s atmosphere and space? by crenshawcrane
I'll just take the bus.
Davebobman t1_j68px89 wrote
Reply to comment by dontmentiontrousers in ELI5: How do we define the boundary between earth’s atmosphere and space? by crenshawcrane
Then you probably aren't getting anywhere near 50 miles above sea level without breathing assistance.
Davebobman t1_j690x5o wrote
Reply to comment by dontmentiontrousers in ELI5: How do we define the boundary between earth’s atmosphere and space? by crenshawcrane
Where are we dropping?