/sci/ - Science & Math

>>12709604
Energy is m2 squared, duh

>>12709612
thats one kind of energy, but there are several types

>>12709604
>son
Yeah Im not wasting my time on breeders.

>>12709604
It's stuff bouncing around

>>12709619
yeah, i came up with motion or some mystic moving force, but that are just synonxms for the thign i cant visualize

>>12709604
tell him energy is an a posteriori property of the universe, and if he doesn't just get it like he would gravity or light then you have failed as a parent for having raised a brainlet

first and foremost - how old is your son?

>>12709604
the capacity to displace objects. if he asks what THAT is, what that IS, you need to teach your son earlier that you can't keep asking "why?" forever. that's not how reality works. in order to see anything something needs to be opaque. you can't see through everything. and energy is a pretty good place to stop. just accept that there is energy and move on

>>12709628
he is 8 and very gifted, he reads a lot about that stuff in his science books

>>12709604
A thing that moves a certain distance at a certain speed in an amount of time

>>12709636
be straight forward and explain him the diffrent typse of energy use the sienctific words and an easy explanation. No need to keep it simple with 8.

>>12709629
>you need to teach your son earlier that you can't keep asking "why?" forever. that's not how reality works
Peak bug mentality Tbh

>>12709647
but i dont know what energy is

>>12709636
Tell him it's an ability to do different stuff. More energy means more stuff can be done. Like ammo for a gun. Or money in capitalism. And you can convert one type of energy to another, eg. use money to buy ammo etc

explain to him what fire is, and say fire is just one form of energy. just as water as multiple forms but is all water, so is energy between fire and electricity

potential

>>12709670
potential what?

>>12709604
Energy isn't a thing, it's a consequence of time translation symmetry in our universe. It's basically just a quantity that balances physical systems.

>>12709629
>you need to teach your son earlier that you can't keep asking "why?" forever
The only time to stop asking is at the creator of the universe. Otherwise you continue asking why.

>>12709604
A measure of how much stuff a thing can do

>>12709689
why stop there you pussy. keep asking i dare you

>>12709604
It's a mathematical construct to measure changes in objects. If A induces a change in B, we call that flow of change as energy. Energy as a true scalar doesn't exist. Only changes in energy are physically meaningful.

[math] {\bf Definition } [/math]: Energy is the scalar number associated to the change in an object A's physical descriptions via object B.

>>12709678
potential work

>>12709651
>implying Feynman was a bugman
https://www.youtube.com/watch?v=MO0r930Sn_8

>>12709685
Energy conservation is a consequence of time symmetry, but energy is more fundamental than that.

>>12709707
ok, that sounds somehow acceptable

>>12709604
>Can somebody give me a child-like answer?
Energy is a microscopic life-form that resides within all living cells, and we are symbiotic with them. Life-forms living together for mutual advantage. Without energy, life could not exist, and we would have no knowledge of Physics. It continually speaks to us, telling us the will of Physics. When you learn to quiet your mind, you'll hear it speaking to you.

is energy just the hamiltonian?

>>12709685
this sounds very interesting. so we can only observe energy by its consequences?

>>12709604
What you’re looking for is in the laws of Thermodynamics. In particular, teach him the first law of thermo.
To keep it simple I will definitely it here:
Energy = potential energy + kinetic energy + internal energy

Potential energy means energy is being stored in the system. Gravitational potential energy is an example, water being high up above a dam and then falling down is the transfer of potential to kinetic energy. Gravitational potential energy is defined as PE = mass*gravitational acceleration*height (PE=mgh)

Kinetic energy is mass in motion. Think of water in motion as it hits the dam, it is defined as KE = 1/2*mass*velocity^2 (ke = 1/2mv^2).

The relationship between potential and kinetic energy is mgh = 1/2mv^2, assuming all of the potential is transferred into the motion of the water.

Internal energy gets more complicated, but is defined as the kinetic energy of atoms. When atoms are heated (energy is transferred in) they move faster.

>>12709604
Hard to do without using the word energy. I think this is a great time to point out Latin and Greek roots of language, as 'en-' means within, and 'erg' means work, so the word 'energy' means work is contained within. Opening the door to language study would do your son a great service.

>>12709724
>Energy is a microscopic life-form that resides within all living cells
That are midichlorians

>>12709735
Based.

>>12709735
Coming from philosophy myself i would rather take a similar approach, thanks

>>12709735
best answer desu

>>12709604
Things that are still bouncing around. The things bounce and hit things to make them bounce around too. It pushes on other things, a lot, or a little bit. And some structures do well to not move against being hit and other structure easily move when getting hit.
Real world applications in such variances/behaviors to the bouncing, arise as potentially helpful.

The 'things' is the thing you are looking at but smaller and smaller. So a block of lead; heated lead is tiny lead blocks moving around. Tiny lead blocks because the heat glow of the lead block is tiny little flames moving around and hitting the tiny tiny lead blocks. You need more heat, tiny flames to move heavier tiny blocks. Tissue is light, so the tiny tiny tissues are easily moved by tiny flames so much, that the tissue now moves in the exact way by the tiny tiny flames. It has been bullied to copy, the tiny tiny lead blocks don't copy so easily, so it just glows when it gets lots and lots of tiny tiny flames, showing the colour of flame but not dancing like the flame.

Being burnt on your skin is because tiny tiny flames move your skin away, that is bad because open wound, so it hurty.

>>12709651
>Peak bug mentality Tbh
a substanceless post of a totally meaningless grammatical structure signifying you have 4chan-induced brain rot. nice. if you're older than 13 and you haven't figured that you literally cannot keep asking "why?" forever by pure physical necessity then you are "peak" npc. moreover, all logical structures are contingent upon axioms which necessarily cannot be broken down further, by definition. by using language to express and build ideas, you are stuck in the world of logic which is always going to be contingent upon some set of immutable (and likely, incomplete) axioms. you are never going to reach the bottom, and it is sad that there are still people that cannot just face the most obvious and basic facts.

>>12709689
>The only time to stop asking is at the creator of the universe
the creator of the universe either is or is "outside" the universe. in any case, what is true of the parts does not need to be true of the whole (fallacy of composition). there is no way to know from our stance whether or not reaching the creator is even possible, and there is no reason to think that it is, if such a being exists. you literally cannot keep asking "why?" forever. this is a built-in feature of the universe. maybe you'll wake up someday

Kids understand money really well, so they get examples involving it faster.
Tell him energy is like money, if he has 100 bucks then he can do more with it than if he had 10 bucks.
If he has 100$ in the wallet, he can buy different stuff with it. He doesn't have the stuff yet, but he has a potential to have things. This is how potential energy works. If he spends the money on a toy, he won't have the money in the wallet anymore and he won't be able to buy any more toys, but he'll have an actual toy worth 100$ in his possession. This is how kinetic energy works.
If he wants to buy a different toy, then he can sell the toy he has, and use the money to buy a different one. This is how kinetic/potential energy conversion works.
There are also many kinds of currencies, like dollars, euros, pesos, which you can use to buy american, european or mexican toys. You can exchange one currency for another. This is how energy conversion between different energy types works.

>>12709636
prob just make him read wikipedia then

>>12709604
the capacity to do mechanical work?

>>12709604
Energy is what makes everything in the world change. If something moves, it did so because of Kinetic energy. If something becomes warmer, it did so because of Thermal energy. If something emits light, it did so because of Electromagnetic energy. Without energy, everything would be the same forever, nothing would move, nothing would be warm, nothing would emit light, as if the world was frozen.

>>12709604
You better figure it the fuck out and tell him before aunt Karen convinces him it has to do with spirits and crystals

>>12709604
Ask your kid why he thinks people can't run forever. No matter the answer, tell him that it's because people use energy when they run and once they don't have enough energy left they can't run anymore. Kids know by instict what stamina is because they feel tired after running and playing, so all you need to is connect stamina with energy and they'll understand.

>/sci/ cant even explain energy

>>12709670
Best.
>>12709629
>that you can't keep asking "why?" forever.
You can, but the basic good are reasons with no further reasons. I can see how lacking that understanding could lead to a schizoid condition, and how failing to grasp the reason of basic good could lead to schizophrenia.
>>12709705
Technically this. "Energy" is abstract. Pressure mediation - "changes in energy" - is concrete.

>>12709670
this

>>12709604
>8 years old
If he doesn’t understand the Lagrangian by now you should just give him some engineering books for his 9th birthday, assuming he doesn’t stick a fork in the wall socket first.

>>12709708
Yes. Schwinger was better.

>>12709604
The ability to do work.

>>12709636
>very gifted
He's gonna get bullied and smoke weed till his brain is fried

>>12709661
its electricity, its a rubber band, its a spring, its a ball at the top of a hill, its a volcano.

Energy is such a low level word that there really isn't a good way to describe it. Its more like a concept than an actual thing. It takes effort to do things in this universe, energy is a measure of the effort required to do something.

Potential energy is way easier to understand IMO but it doesn't cover everything with energy. Either way next time have your kid break down the question he has. Like if he asks what energy is, figure out the context he's asking it from and explain it there. Energy like a bouncy ball? Like electricity? Like drinking soda and eating a candy bar? Energy is a word that needs context to properly be defined

>>12710148
Good answer.

>>12709604
>what is energy
Energy = matter at high speed.
>what is matter
Lump of information

>>12709629
Do NOT do this

Any discrete objects in a closed system.

>>12709604
Haha, You could have picked from the multiple choice list of different answers that would have shaped his young psyche, but all he got from his dad was "dunno".

Kid coulda learned that energy is from God, from the Stars, from his Family, From his Food, From his Blood, From his Focus, from himself.... but all he got from his father is
> "Shucks junioranon I'm an NPC"

Hell, you could even have messed him up with some crackers like
> It comes from the backside of four giant Elephants whose farts give us the four winds and who stand upon the back of a giant turtle swimming through the universe with a flat disk Earth remains static and the suns float in the sky.

But now he will look at your failure, if not now then later in life, (as he surpasses your metaphysical ghost along the path to enlightenment where he must go on his own to fulfil his own hero's journey) and he will see the weakness of the answer you gave, what it reveals of an imbalanced self, as he passes you to reach treasures untold guarded by fear its self.

Hell, that kid is probably an NPC now anyway.
What you did is child abuse.

>>12709636
>gifted
That's cope for autism. You shouldve been sterilized.

>>12709604
transferable power

>>12709604
Science doesnn't have a good answer because its philosophically unserious. The best answer it has is "energy is the capacity to do work". Don't ask them to define work.

Energy is change that hasn't happened yet.

>>12709662
This is pretty good.

>>12709708
this only prove how retarded feynman was, why since the 60s dont have been any genius?

>>12709662
why do you always have the same energy after something has been done?

>>12709604
By demonstration of leaving them right after they ask me OP's question and saying, "I'll be back when all the energy in the universe runs out."

>Leaves and never returns.
>Child devotes themselves to creating an anti-energy machine in order to see their father again.
>???
>DIVINE FAMILY REUNION

>>12711209
Alternative take: Tell the child that it is how long they can remember the first time they ever asked me that question and not ever asking it ever again.

If they ask me again then I try meme attached.

>>12711209
You're archduke bottom boy

>>12711230
What I am is a male orgasm waiting to happen, which is probably why I attract the bottoms and submissives.
>Master of the Cold Prostate Seduction Style.

>>12709784
>all logical structures are contingent upon axioms
false

>>12709604
Energy is just an imbalance in nothing that is desperately trying to return to nothing

>>12709663
Fire is just rapid oxidization. It's a chemical reaction

>>12711309
So energy is suicidal suicide?

>mfw the whole of existence runs off a cycle of suicide cults

>>12709604
Motion

>>12709604
The simplest answer is that energy is when something moves. All energy is either movement or potential movement.

>>12709707
What is work?

>>12711430
I literally have no idea. Every time I try to random people just turn up and offer me money to stop doing whatever it is I'm doing.

Keen to learn though.

>>12709701
This is the best child friendly answer.

>>12711475
Why are you trying to befriend children?

>>12709604
Energy is what make things go. Like in Pokemon cards. Without energy nothing will happen.

>>12709615
It's his wife's inexplicably ethnic looking son

>>12709615
You have been fooled by evil

>>12709604
Energy is literally everything. If it doesn't have energy, it doesn't exist. True for everything with (e.g. condensed matter) and without (e.g. photons) rest mass.

>>12709708
very retarded, he explains what is heat and then when asked what is magnetism he throw feces at the interviewer

>>12710999
thats deep

>>12711430
time x way

Its mathematical potential function to physical motion (that is, momentum)

>>12709615
good riddance to bad rubbish.

>>12709604
[math]E^2 (c^2 - v^2) = (mc^3)^2[/math]
where 'm' is mass
'c' is the speed of light
and (c^2-v^2) is the hyperbola described by relativity

Energy is what's required to change a system.

>>12709615
t. genetic dead end

Energy is how much future can fit into the now.

>>12710971
Get out of your mom's basement and you'll know what work is

>>12712151
So?

>>12709604
physics money

>>12709604
Energy is the quantity that is conserved after shit happens.
It's a made up concept and doesn't actually exist.

>>12709930
Please never post anything again.

>>12709612
mc2 retard

>>12709604
It's an abstract concept we use to represent the potential of a system to create change in another system or within itself. Energy in in of itself doesn't exist, it's a man made concept. It's bit like asking "what's a number"

>>12712689
Too late.

>>12709651
>Tbh
Wtf why didn't this get turned into desu?

>>12712112
kek

>>12712699
Whats a number?

>>12712715
Big Cock Energy

>>12709604
A simple demonstration could help him to understand it. After he has a good night's sleep, make him a hearty but not heavy breakfast, with a cup of coffee. He should be feeling energetic, and then you can tell him he's wrong, and give him a bump of coke and a 40. Now he knows what energy is.

The potential to do work.

>>12712753
>coffee for an 8 year old
i dont think thats a good idea

>>12709704
why are we here anon? Why did we have to be born in this cruel, jewish ran, progressive time? Because God wants us to change it.

>>12709604
Energy is a measure of how much ability something has to do stuff. In most cases things are lazy and wanna have less ability to do stuff because with great energy comes great responsibility. They can get rid of it by doing stuff until they get tired and don't have any ability to do stuff. It sometimes things are stuck, and even if they have a lot of ability to do stuff they can't until put in the right situation, like a battery.

That's how I'd explain it to a kid.

>>12710122
this

>>12709604
kinetic: how much matter is moving, be it heat (energy is being transferred) or motion (energy is currently causing motion)
potential: the potential for matter to do one of the above (due to gravitational of EM fields)

Did you drop out of high school? Be honest

>>12712737
A well-defined symbol that describes the ordered position of said element in the set it belongs to

>>12709604
Energy can't be explained to a two yeard old with words easily since you would need to teach him concepts like force and work first, he must experience what energy is for himself. Drive to your nearest shithole, give him a yellow vest , tape several 100$ wads to his back and tell him to run, he'll get what energy is then.

>>12710122
>>12712832
>bullies
>in post 2010s schools
Get out from under that rock kids do tik-tok dances and soundcloud rap now with little to no ridicule

Energy is the capacity to do work

>>12709629
You will never be a philosopher

>>12713370
>black people have low energy
wow how racist.

>>12709784
Lemme guess, blonde haired girls in high school rejected you so you convinced yourself you liked asians?

>>12709604
Make sure your son doesn’t masturbate, and he’ll learn energy instinctually like breathing

>>12709604
energy is the opposite of entropy
it is a measure of how far something is from rest and how much entropy would be required to return it to rest, relativistically
i.e.
a ball at 300 feet has relatively higher energy than a ball at 0 feet
a battery at 300V has a relatively higher energy than a battery at 0V
a pot of water at 300K has more energy than a pot of water at 274K
All of those are true because one has less entropy than the other

>Thread has more than 100 replies
> No mention of Noether's theorem
I knew /sci/ was infested with high school retards, but Jesus Christ this is embarrassing.

>>12710148
MORONS

>>12713418
I thought about it, but judging by the other replies nobody would have cared/understood.
/sci/ is almost dead at this point.

>>12713418
so where's your child-like explanation of energy using noether's theorem?

>>12709604
Next time be honest and tell him you don't know and then research on the thing together you fucking faggot

>>12709651
idk follow the why rabbit hole long enough and the realization is that everything is pointless, probably less damaging to not have that realization

>>12711430
Rate of change/movement within a measure of time. All energy is kinetic energy, whether it be sound, heat, whatever. Potential energy isn't a type of energy, just a meaningful way to measure energy interactions in systems. Energy is easy to define, the hard part is reaching a consensus.

>>12712486
If you're White/European you have a duty to breed. If you have a high IQ you have a duty to have as many children as possible.

>>12709701
This

how does it feel to breed? do you feel different about your partner knowing she transformed your cum into a person?

>>12709604
energy is ether

>>12714348
*shrug* she could've turned it into infinite winning lottery tickets for all I care. Once it is out of me I cut all ties with it anyway. I do however find it impressive because she was able to turn a substance I simply witness as a post-orgasm experience into another thing that will receive and give orgasms to others in the future.

>Orgasm multiplexing in process, MERGE THOSE MEMORIES AND HAPPIES!

>tfw we are all literally daddies cummies

>energy is the capacity to do work

>>12714405
>Tooker now does all the work for all mankind thanks to his infinity hat engine and boundless charity to simply provide for others without need for recognition or reward.

>>12711301
What was that paradox called?
You can only express ideas using a language and the definitions for the rules of this labguage is always external to it.

>>12714392
>>tfw we are all literally daddies cummies

>>12714438
Language rules emerge from the residue of integrity and inference of communication attempts.

>>12714452
I can easily understand why eating another's cum is an act of worship or devotion but eating your own cum is just cheating.

>>12709615
What are you a faggot?

>>12709707
finally, the right answer. My faith in humanity is restored

>>12714564
The promise of future work is the basis of all attention and the potential for that work is limitless.

>>12709604
Energy is result of the symmetry in our universe and it doesn't change in time.
Symmetry: When you change any system and it doesn't change, that's called symmetry. eg. circle

Lets make an anology:
Lets create a currency and lets call it anon dollar. and we are 92 people here. Lets monetise 92 anon dollar and we can't monetise more money. We can exchange diz anon dollar among us but in total there will be 92 anon dollar timeindependent whatever we do. It can be vary from person to person but the amount of the money always will be same. Energy is like currency of the universe. Whenever we do a job we "give" energy to the universe but the amount of energy in universe will always be the same.

>>12713823
And produce a bunch of nihilists that wish to die?

>>12709604
it's what plants crave.

>>12709604
Excited and jumpy atoms

>>12709615
edit: wow didnt expect all these harsh replies jeeze

>>>12711496 >>12711506 >>12712123 >>12712151 >>12714455
STFU Straggots.

>>12709615

>>12709670
kinetic isn't potential

Take this as a lesson. If you cannot deconstruct something, you do not truly understand it. Look at all the drones in this thread who pasted the definition; how sad. Start from the ground up with your son, yes, even from matter itself.

>>12709604
It's a currency

The only correct replies are those that say energy is an abstract concept, kind of like numbers, used to measure changes and shit in systems. Anyone pretending to give a definition or know what energy really is, is spewing nonsense

>>12709604
https://physics.stackexchange.com/questions/3014/what-is-energy-where-did-it-come-from

>>12713652
thats actually what i am doing right now

>>12715518
OK, sorry for calling you faggot anon

heat

>>12709604
I think its the intent of shit going places

>>12714410
I desire those things.

>>12714809
Best answer so far

>>12709604
>It what we call anything that can move things.
This is a "lie to children" situation where depending on age you can let them know it's a lot more complicated or you can just pull out a dictonary and explain the definition as best you can.

Your son is offering you both an opportunity to discover what energy 'is' for the both of you, right now. Don't ask us, go ask him what energy is, think it through. I'll tell you what I'm not seeing from any of you fucking virgins is what energy feels like in the body. How 'energetic' do you two feel, OP? How much energy is in your bank account and how much 'energy' do you think you should be investing in word-salad in the internet age with an I-phone kid?

*sips*
Yeah, thats what i'd call energy

>>12712697
c = me * 2

>>12709604
Ability to do things. Simple enough for a child to grasp.

>>12709604
>>12716060
Of course, it's a bit of a simplistic definition, but it should work for a child. If he asks for examples, you can tell him how animals and humans have the energy to move, how fire has the energy to burn you and make light, how food contains energy inside it so that when you eat it you get energy for movement, how batteries also contain energy but not in a way that our bodies can use, but in a way his toys can. Make sure you warn him not to eat batteries, though.

>>12714809
Have fun explaining to a little child what "symmetry" means in the context of a "universe", as well as how all the dollars relate to common forms of energy.

>>12709604
Energy is a made up thing that is conserved. It turns out that if you measure a thing's ability to do work, and than transform that ability to do work into another form of an ability to do work, then there is still the same amount of ability to do work.

>>12712770

e=mc2

>>12709662
breddy good

>>12715902
No, it is not. Philosophy.

>>12712527
im just an undergrad so idk but this was the explanation my thermo prof gave when asked

>>12709604
As others have pointed out, I'd probably explain it to a child as the ability to do things, or as a universal fuel of everything. You need energy to keep your heart beating, you need energy if you want to lift or otherwise move objects, you need energy to turn on the lights and so on. The more energy you have the more you can do, and without energy you can't do anything and nothing can happen.

>>12711148
nobody knows

>>12711148
finite universe

>>12713823
>pol schizo
Just look at this guy's posts. You really want him to make babies? His genes are not worth it.

>>12713226
This. I just got out of high school a few years ago and all thoughout my time in school they pushed anti-bullying so hard.

>>12713418
Says Mr. I-learned-Noether's-theorem-at-age-8

>>12715708
Wholesome 1000000

>>12709615
Incomprehensibly based.

>>12709629
>the capacity to displace objects
That's kinetic energy, not energy as a whole.

>>12719364
yes

>>12709604
The thing that makes stuff happen

>>12709604
just tell him there are different kinds of energy and if he wants to know he has to specify which one.

>>12709604
Energy is the ability to do work

>>12713418
>my middle school and high school teachers were such brainlets lol
>they didnt even mention noethers theorem in class, how embarrassing

>>12709615
ahahah look guys i'm so different! i have no natural desires!!!

>>12709604
stored work

>>12709701
Yup.

>>12711430
kinetic energy

>>12712737
A general quantitative description of a certain state of affairs.

>>12720068
Meanwhile me, an intellectual, could actually recite the introductory part of its wikipedia article from memory

>>12714564
Yes but what is work? You cant just call something work with no definition

>>12710999
energy is a friend you haven't met yet :3

>>12709604
It’s change. Lots of energy means lots of change. Potential energy is potential change, kinetic energy means actualized change.

More change means quicker change up until you change as fast as the universe itself changes, which is also at the speed of light.

Kek

Someone never took a classical mechanics/thermodynamics/P-chem course.

>>12709662
I imagine the universe as a long movie with frame rates. You can look at each individual frame which then looks like a picture because nothing is moving / is changing. If you get to the next frame something changed, which you then call time. Energy gives you the ability to make more changes more quickly.

>>12714809
The energy stays the same but it gets more dense.

>>12709615
If you ever get a gf, they will want to have babies, so I assuming you're a virgin loser.

>>12709636
>>12709604
Just tell him the engineer's answer.
Energy is what allows you to do work. That's it.

>>12709615

Based and eunuchpilled

>>12709604
flux of causal edges through timelike hypersurfaces

>>12711506
what does this sentence mean

>>12709604

Lmfao at all the shit answers in this thread. All these idiots getting twisted up in language games.

SHOW your son energy. Fuck what is so hard about playing catch? Throw the baseball around. How hard is that?

>>12721115
Literally force dot displacement

The stuff that makes other stuff do stuff.

We all know what energy is, so why delve any deeper than that?

>>12709735
GJ anon

>>12726406
>We all know what energy is
DOUBT

>>12726121
Why are you asking your child how difficult a given thing is? Play until YOU pass out, stop interrupting YOUR kid with YOUR limitations.

How about the ability to do work?

Just play him this song https://www.youtube.com/watch?v=OgTNjPOol9A

>>12709733
https://en.wikipedia.org/wiki/Noether%27s_theorem#Time_invariance

>>12720060
Work is the ability to use energy

>>12709604
the ability to do work? idk

>>12727395
That sounds awful