There are many answers that can have different approaches. However i would say that we are not the only animal to pay. Bees, ants, etc need to work to sustain their queen, they pay with their work to be part of a group. Apes, lions and many other bigger animals also “pay” their respect to a hierarchy. If not, they are either pushed out of the group or even killed. In mating, many others as birds will need to provide gifts so that the other sex allows to mate.
So they are paying. Not with money as you might be referring to in the question, but there is some kind of transaction.

Alternating current starts electrolysis just as well, only that now all products are created equally at both ends.

You are talking about photosynthesis. That's were all our fossil fuels come from.

It's probably not the vibrations but the ultrasound cavitation. It forms little bubbles at enormous forces, ripping stuff apart.

Important distinction too; a turbojet isn't the engine on an airliner, those are turbofans.

They're called the because the big turbine blade at the front produces most of the THRUST. A turbojet is referred to as a "low bypass" engine versus a turbofan being a "high bypass" engine. Bypass just refers to the fact that air is being diverted around the core of the engine.

A high bypass engine like an airliner is using the "fan" like a propeller to push air back and around the main engine, this is why you see a big turbine blade right a large circular duct directing the air behind it.

Low bypass engines are what you'd expect in fighters, where you see all the thrust exiting a cone in the back.

Edit: corrected from lift to thrust

Fun fact: this is also the reason why you cannot microwave fruit flies (in case you ever tried... for... reasons...).

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We could. It would be horribly inefficient, taking way more than other methods, and most importantly, the current methods of power generation would produce way more CO2 than this destroys. And to make it work at all you would need to remove the CO2 from air to get a tank full of it; at which point you could just sequester it, store it underground, or whatever else works and takes much less energy.

Both carbon and oxygen are way easier to get differently, even if energy were free it would not be worth it.

>What is the difference between turbojet, ramjet, and scramjet?

Turbojet is a type of jet engine that uses a turbine to compress incoming air before it enters the combustion chamber, where it is mixed with fuel and ignited to produce thrust.

Ramjet is a type of jet engine that uses the forward motion of the aircraft to compress incoming air before it enters the combustion chamber, where it is mixed with fuel and ignited to produce thrust.

Scramjet (supersonic combustion ramjet) is a type of jet engine that uses supersonic airflow to compress incoming air before it enters the combustion chamber, where it is mixed with fuel and ignited to produce thrust. The main difference between the three is the method of compression used to compress the incoming air before it enters the combustion chamber.

Pure water electrolyses if you try hard enough. It's just silly inefficient.

Table salt is normally not used by people doing electrolysis. Other salts such as sodium/potassium hydroxide, or if nothing better is at hand, sodium (bi)carbonate, are safer, similarly cheap, and also do the job better.

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Whoa this was educational haha.

Makes sense.....electricity works on potential differences, which get larger with distances! So large organisms can straddle much larger potential difference zones.

A turbojet is a type of jet engine that uses a compressor wheel connected to a turbine wheel by a shaft with a combustion chamber in the middle. Jet fuel is burned and spins the turbine which in turn spins the compressor wheel which sucks in more air into the combustion chamber.

A ramjet is an engine that forces air down an intake, through the aircraft's forward movement through the air. The air being forced down the intake compresses by way of the aircraft's speed, then fuel is injected and ignited and exits through the exhaust creating thrust. It's essentially a turbojet without the turbine or compressor; but you need to be moving first before it can work. Instead of the compressor compressing the air, the aircraft's forward momentum compresses it.

A scramjet is a ramjet, but airflow through the engine is supersonic; whereas it airflow slows down in a ramjet.

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Can we hit co2 with electricity and split it into carbon and oxygen? Seems like that would be a way to reduce CO2 emissions. But not sure how efficient it is or would be. Probably would need some economies of scale to make it viable in the long term. I'm assuming. Both carbon and oxygen have industrial uses so should theoretically count as useful resources. At least at any reasonable scale.

Moral of the story, don't boil pool water

Little funfact my chemistry prof once told us. If you use desinfect, like isopropanol, it kills the bacteria by dissolving their shell and their inner parts run out and they die.

All your organs are autonomous. They rarelly need extra instruction from brains. Heart synapsis are affected by chemicals in energy drinks and treat them as instruction to work harder. Brain detect abnormal heart rate increase and start sending signals to hear to slow down because there is nor reason for wasting energy. Conflicting signals can cause arrhythmia and sever arrhythmia can lead to heart arest. While hear arest is an extreme case, arrhythmia by itself is not something heart should expirience regulary.

Was this written by ChatGPT?

You can to a certain degree, but only with direct current.

Alternating current will not Work on molecular Level but very Well for organisms with a heart like mentioned in the comments. It will mess up with nerves and muscles.

Direct current on the other Hand will start electrolysis, meaning the water (H2O) will split into hydrogen and oxygen. While this process can cause cell mebranes of for example bacterias to burst, it will also lead to building Up flamable Gas (hydrogen) and loss of water (since its Split into those molecules). Its also very inefficient.

This process is used in the Aquarium Hobby to reduce algae. (Chihiros sterilizer)

You would probably waste an awful lot of electricity, without being able to reach all the micro-organisms.

Ultrasound might be an answer though. I have seen a Swiss startup develop an ultrasound machine that you run your water through.

The vibrations field (or as Chromotron points out, the cavitation) has the effect of breaking down anything molecular that crosses it.

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Wait, is this a chess puzzle?

The brain is a chemical plant. Every thing you do and think is a result of chemicals in the brain reacting. Those chemicals are common. You can get them from outside sources. Weed is a bunch off chemicals that tell your brain a bunch of things. One of those things it tells you sometimes is that your hungry.

And the actual capsule thing is so small, I will be amazed if they find it along that very, very long route from Newman to Perth. Does it look hot if you see it in night vision or infra red?