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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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4443368 No.4443368 [Reply] [Original]

What is energy? Like what is actually made out of?

>> No.4443370

matter interacting with higgs bosons

>> No.4443372
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4443372

Oh boy here we go...

>> No.4443402

Energy is a theoretical posited substance used to explain the observed behavior of matter, and it is made up of idea.

>> No.4443411

>>4443402
Oh so its just like time

>> No.4443413

>>4443411
except time is a dimension

>> No.4443414

E = mc^2
/thread

>> No.4443417

http://www.colorado.edu/physics/phys1110/phys1110_fa10/Feynman_energy.pdf

You're welcome.

>> No.4443422
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4443422

ENERGY IS MASS TIMES THE SPEED OF LIGHT SQUARED.

IT IS MASS MOVING REALLY REALLY REALLY FAST LIKE FASTER THAN POSSIBLE FAST.

>>4443411

NO TIME HAS NOTHING TO DO WITH MASS BECAUSE TIME IS THE FOURTH DIRECTION AND WE ARE FALLING DOWN IN IT SORT OF BUT WE DONT KNOW MUCH ABOUT TIME

>> No.4443428

Energy is a quantity that is conserved through time translation in sufficiently flat geometries. It is a description that gives information about several aspects of a system, including mass and capacity for motion.

>> No.4443429

it is made out of mass and length and anti time and anti time.

>> No.4443430

>>4443422
Yeah, time is the fourth dimension, but we can only see cross sections of it since we live in 3 dimensions. You are being born and dying right now, but you are only able to view your life one 3d piece at a time

>> No.4443433

>>4443422

>time has nothing to do with mass
>he's never heard of gravitational time dilation

>> No.4443438

it is just an idea.
like homosexuality. it doesn't actually exist until someone comes up to you and puts their dick or a bomb in your ass

>> No.4443442

>>4443370
lolwut

>>4443402
>Energy is a theoretical posited substance
>substance
No.

>>4443411
As a little aside, energy and time are linked. Energy is to momentum as time is to space. If you think I'm spewing bullshit then you've never done any relativity.

>>4443414
Not really sure how that is supposed to explain what energy is.

>> No.4443459

energy describes a quality (and quantity) of a given system that is ~always~ constant in time

>> No.4443457

>>4443413
No, it's not. It's change. Just change. That's it. If everything was static and didn't change there would be no "time" to speak of.

>> No.4443460

>>4443457

Spacetime is composed of three spacelike dimensions and one timelike dimension.

>> No.4443462

>>4443459

This is only true in flat spacetime.

>> No.4443463

Energy is information. Correct me if I am wrong.

>> No.4443467

>>4443462

>flat spacetime

Do you mean Euclidean spacetime? And what makes you so sure?

>> No.4443466

>>4443457
Everything is static. We don't perceive it as such because we can't see in anything more than 3 dimensions. You five minutes ago, you right now, and you 5 minutes from now are all points in the fourth dimension, time. Every quark, electron, atom, molecule, life form, etc. follows a path from creation to destruction along a line in the fourth dimension.

>> No.4443473

>>4443463

not specific enough.

>> No.4443474

I stopped reading this thread when I read that time was the 4th dimension.

>> No.4443475

>>4443474
Well according to string theory there are 9 dimensions so get used to it buddy

>> No.4443476

>>4443467

Conservation of Energy is only valid when time translation is invariant. On large enough scales, due to the expansion of the universe, energy is not conserved.

>> No.4443478

>>4443474

That's like fucking babby's first GR. Stop being a moron and look it up.

>> No.4443480

>>4443430

>not recognizing the distinction between spatial and temporal dimensions

WE MINKOWSIKI SPACE-TIME MANIFOLD NOW

>> No.4443484

>>4443473
Can't specify any more than that, how do you explain what information is? You can't reduce everything into explainable phenomena.

>> No.4443490

>>4443484

what I mean is other things can be described as "information", such as mass, distance, momentum, pretty much anything. While you are probably correct, your answer isn't all that useful.

>> No.4443488

>>4443474
lurk moar

>> No.4443489

>>4443475
I never said there wasn't a 4th dumbass.

>> No.4443493

>>4443475
>>4443478

Saying that time is the fourth dimension implies that it bears some similarity to the preceding three. Yes, time is one of four or more “dimensions,” but that does not make time the “fourth” dimension.

>> No.4443494

>>4443489
What else could you possibly be implying by stating that you stopped reading the thread when you read that?

>> No.4443499

>>4443494

Probably that he understands that time is not a spatial dimension.

>> No.4443500

>>4443493

semantics. Minkowski spacetime is composed of three spatial and one temporal dimension. In common usage it is fine to consider time the "fourth" dimension since it is in fact a fourth dimension.

>> No.4443502

>>4443493
Time is a measurable change in three dimensions, and is the next progression in the 10 dimension universe postulated by string-theory. It is the fourth dimension, after length, width, and depth

>> No.4443510

Cheese. Energy is made out of cheese.

>> No.4443509

>>4443494
That I stopped reading when I read that. You assumed I was talking about something else. After reading that I got bored or this thread and went onto another one. I just felt it necessary to state what I was doing.

>> No.4443508

>>4443499
Nobody called it a spatial dimension

>> No.4443513

>>4443500
>>4443502

It’s the ordinal placement of time in relation to dimensions of an unrelated type.

>> No.4443514

>>4443509
Then I apologize for criticizing your knowledge, I made a premature assumption.

>> No.4443522 [DELETED] 

>>4443520

Shut up dumbass.

>> No.4443523

>>4443513
Ah, so the fact that time seems unrelated to the three spacial dimensions led to confusion.

>> No.4443526

>>4443510
What is cheese made out of?

>> No.4443527

>>4443514
it's reassuring to find anons like this

>> No.4443531

>>4443527
Thank you. I try to be agreeable to a fault, and I would prefer to not contribute to the general decay in /sci/'s quality.

>> No.4443538
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4443538

>mfw physicists don't realize they're chasing their own tails
>mfw they don't actually know shit about reality

>> No.4443534

>>4443533
Indeed

>> No.4443533

>>4443490
True, I am a philosophy major after all.

>> No.4443542
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4443542

>>4443538

>implying physicists give a shit about reality
>implying it's even a useful endeavor to give a shit about reality
>reality

>> No.4443544 [DELETED] 

>>4443538

/thread

>> No.4443800

Energy is defined as the ability to do work.
You dumbasses should pick up a textbook.

>> No.4443804

>>4443800

>classical mechanics

>> No.4443805

>>4443800
So we're all made out of the ability to do work?

>> No.4443808

>>4443805
we learn something new every day

>> No.4443815

>>4443805

We're not made out of energy.

>> No.4443819

>>4443815

99.999999% of the mass in your body is nuclear binding energy.

>> No.4443834

>>4443815
you're right, we're all a little part of god

>> No.4443872

>>4443834
I hate you

>> No.4443962

Picture a universe run by a lazy god. The god has to get every object from its starting point at creation to its correct position on judgment day. He wants to do it in the way that takes the least amount of work on his part. Usually the slower he moves things around, the less work it takes. But if he slows down on one day, he has to speed up some other day, or he won't have everything in the right position when judgment day comes. So he adjusts his plan meticulously until he finds the sweet spot where the effect of speeding things up the one day and slowing things down on any other day precisely cancel each other out. In the final version which he implements, the extra work it would take to do a day's events in a day minus one second is the same for all days. It's a conserved quantity. And that conserved quantity we call energy.

>> No.4443967

>>4443502
Yeah, but dimensions are human conventions. There is no empirical way of separating width from length from height, we just convene to a system of coordinates which allows us to somehow describe events which take place in the "spacetime".
But these conventions don't exist independently in reality, much like mathematics. They are language-based conventions.