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so when you learn about electrical voltage and current, it's generally explained by analogy to water flowing in a pipe

but when you learn fluid dynamics, the behaviour of water flowing in a pipe is generally explained by analogy to electrical voltage and current

:ohno:

@00dani "you can think of water flowing in a pipe with that analogy of water flowing in a pipe"

@00dani what do these two have in common other than that there are particles involved, one type of which can kill you?

@hirojin voltage is like water pressure and electric current is like water current, apparently

i didn't really understand it too well since it was a circular analogy :ohno:

graphic thoughts about both water and electricity 

@petra @hirojin @00dani i'm honestly not sure if we're talking "water, which can make you drown or Literally Punch A Hole In You" or "electricity, which can electrocute you"

graphic thoughts about both water and electricity 

@zoe @petra @00dani if you have water pressure that can punch a hole in you, you might have a problem with the piping in your house and should see to getting that fixed

re: graphic thoughts about both water and electricity 

@hirojin @petra @00dani yeah but it CAN kill you
like people make water jets specifically for the purposes of punching holes in things

@00dani Wait what? When I learned fluid dynamics, electricity wasn't even part of the discussion.

@matt huh, really? i got the impression this was how it was Always Taught :blobcatthinking:

@00dani On the contrary. They compare electricity to water flowing because that is something everyone has seen and understands at a basic level, even as children. Basic water dynamics has been understood for several millennia.

Electricity is something that is difficult to see short of electric arcing, and has taken several millennia to *begin* to understand. We still don't know everything there is to understand about electricity.

@matt weird! i wonder why so many folks faved or boosted the original toot if they weren't taught the way i was? :blobcattilt:

@00dani Thats not to say that the advanced details about fluid dynamics are fully understood either, but for the purposes of explaining basic electrical theory, you don't need that.

Advanced electrical theory, on the other hand, requires a fundamental understanding of quantum physics.

@00dani Were I to describe electric theory in terms of fluid dynamics, i would use a simple gravity drain system:

Fill a water tank with a bunch of water. That is your potential (voltage). Make a hole in the bottom of the tank and measure the flow rate. That is your current (amperage). The size of your hole is your resistance (ohms); the bigger your hole, the smaller your resistance, and the greater your current.

@00dani If you keep your water level constant despite the current (you have a supply of water feeding into your tank), you have a steady voltage source. Otherwise the water tank is acting like a simple battery; once the potential is drained, the current will cease.

Granted, that is a very, very, very basic explanation of electical current, and it doesn't hold up once you start developing complex systems, or even start talking about voltage polarity, capacitors, etc.

@00dani You can even demonstrate this idea with a simple children's toy. My kids have bath toys that behave just like this system: a water tank with a hole in it.

@00dani At the subatomic level, electric current is basically the ordered flow of electrons and electron-holes through an electric conductor (analogous to a water pipe).

So really, describing electric flow in terms of fluid dynamics makes MORE sense than describing water flow in terms of electric current.

<-- bachelor's degree in electronics technology, and bachelor's degree in materials science with emphasis on semiconductor theory.

@00dani ley energy is just magic going through ley lines like a wire or a pipe

@00dani @ben clout is just a shitpost going through a branching network of boosts like water going through a city plumbing system

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