Recent comments in /f/explainlikeimfive

Ribbythinks t1_j68ycug wrote

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/

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Dysan27 t1_j68y2r0 wrote

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.

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Axolotl-Dog t1_j68xlee wrote

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.

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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.

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Flair_Helper t1_j68sc6g wrote

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