[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]

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

/sci/ - Science & Math

File: 2 KB, 125x125, [2].jpg [View same] [iqdb] [saucenao] [google]

that guy Mon Feb 21 18:30:22 2011 No.2580709 [Reply] [Original]

what is energy?

>>	Anonymous Mon Feb 21 18:31:22 2011 No.2580718 mc^2

>>	that guy Mon Feb 21 18:32:22 2011 No.2580722 >>2580718 That's what it does, but it's not what it is, is it?

>>	Josef !!nUf2NflSAyw Mon Feb 21 18:32:22 2011 No.2580723 The quantity conserved due to time translation invariance.

>>	Anonymous Mon Feb 21 18:33:22 2011 No.2580727 >>2580718 lies

>>	that guy Mon Feb 21 18:33:22 2011 No.2580735 File: 16 KB, 380x380, sperm.jpg [View same] [iqdb] [saucenao] [google] >>2580723 But isn't time a concept?

>>	Anonymous Mon Feb 21 18:34:22 2011 No.2580737 A quantified representation of a system's ability to do work.

>>	Anonymous Mon Feb 21 18:35:22 2011 No.2580745 It's the capacity of a physical system to change stuff (i.e., do work, apply a force, move shit around, however you want to think about it).

>>	Josef !!nUf2NflSAyw Mon Feb 21 18:36:22 2011 No.2580758 >>2580735 Everything in science is a concept. That's because science is a concept of reality.

>>	that guy Mon Feb 21 18:36:22 2011 No.2580759 File: 38 KB, 446x382, drink_sip.jpg [View same] [iqdb] [saucenao] [google] >>2580737 >>2580745 But you have no idea what it is, you only know what it does. Correct?

>>	that guy Mon Feb 21 18:37:22 2011 No.2580767 File: 29 KB, 351x351, cool_dog.jpg [View same] [iqdb] [saucenao] [google] >>2580758 So you don't really know what anything is, you only understand what effects they produce?

>>	Josef !!nUf2NflSAyw Mon Feb 21 18:38:22 2011 No.2580773 >>2580767 Science doesn't say how reality is, science provides predictive models about the environment. Physics doesn't care what time is - because that's not one of its topics.

>>	Anonymous Mon Feb 21 18:38:22 2011 No.2580770 What isn't energy?

>>	Anonymous Mon Feb 21 18:39:22 2011 No.2580780 File: 46 KB, 600x595, Eve-no-Jikan-coffee.jpg [View same] [iqdb] [saucenao] [google] >>2580767 that's kind of the definition of understanding...

>>	Anonymous Mon Feb 21 18:40:22 2011 No.2580787 >>2580759 That's the definition of energy. Energy isn't really a thing in the way that you seem to think it is. It's like velocity. Is velocity a thing? Is distance a thing?

>>	Anonymous Mon Feb 21 18:41:22 2011 No.2580796 >>2580718 Only true for an object at rest. Energy is this stuff that things have that lets them do stuff to other things.

>>	Anonymous Mon Feb 21 18:42:22 2011 No.2580801 >>2580759 That IS what it is. It's not like you can pick up a nugget of energy. It's all potential (either as gravitational or kinetic or heat or whatever). It's an abstract thing.

that guy Mon Feb 21 18:42:22 2011 No.2580804
File: 270 KB, 1440x900, light.jpg [View same] [iqdb] [saucenao] [google]

>>2580773
Yeah, Okay, "Josef," you're a retard. Dodging the point with your terrible scientific application. Do you know what energy is? YES/NO. If you can't answer the question, don't dribble on your keyboard with some bullshit that isn't even an answer. If you can though, please, enlighten me. Faggot.

>>	Anonymous Mon Feb 21 18:42:22 2011 No.2580805 >>2580759 >>2580767 The fundamental nature of reality is hard to obtain a knowledge of. See Plato's Allegory of the Cave.

>>	Anonymous Mon Feb 21 18:43:22 2011 No.2580814 >>2580770 i don't think that there is something with no energy what i want to say is i don't think that there can(not) exist something with no energy

>>	notatripfag Mon Feb 21 18:43:22 2011 No.2580818 >>2580804 Energy is something we observe. So we do know what it is.

>>	Anonymous Mon Feb 21 18:46:22 2011 No.2580840 >>2580770 This. Everything that exists is just energy in some form.

>>	Anonymous Mon Feb 21 18:46:22 2011 No.2580834 File: 119 KB, 696x468, troll-senses.jpg [View same] [iqdb] [saucenao] [google] >>2580804 are you aether?

>>	Anonymous Mon Feb 21 18:47:22 2011 No.2580849 >>2580814 Look up ground-state energies. Anything that exists has energy. There is no way around it.

Anonymous Mon Feb 21 18:48:22 2011 No.2580853

>>2580814
Something with zero energy would violate time-energy uncertainty (like position-momentum uncertainty). Infinitely precise values of energy can't exist. That's why even a vacuum isn't zero energy, but a constantly fluctuating system of "virtual" particles.

>>	Anonymous Mon Feb 21 18:48:22 2011 No.2580854 If matter and energy are interchangable, whats the name for what they both are? Ubermatter?

>>	notatripfag Mon Feb 21 18:48:22 2011 No.2580857 >>2580849 True, even vacuum space containts energy.

Anonymous Mon Feb 21 18:50:22 2011 No.2580874

>>2580854
English fails us. I don't think there is a conventional term. Mass/energy is the only thing that comes to mind, or just "total energy" if you explain what you're talking about first. That includes mass, internal kinetic energy, etc.

Oh hey, fun fact: A good chunk of the "mass" of protons and neutrons is interaction energy between the constituent quarks. If it were just the sum of the quark masses, protons and neutrons would be a lot lighter.

>>	that guy Mon Feb 21 18:51:22 2011 No.2580885 File: 19 KB, 400x400, philosoraptor.jpg [View same] [iqdb] [saucenao] [google] ITT: People dodge the fact that they don't know what energy is.

>>	Anonymous Mon Feb 21 18:52:22 2011 No.2580896 >>2580885 Wittgenstein is ashamed of you. Or would be, if he were around.

>>	notatripfag Mon Feb 21 18:53:22 2011 No.2580901 >>2580885 It is everything around us. Energy is engery. Just like a potatoe is a potatoe. /thread

>>	notatripfag Mon Feb 21 18:53:22 2011 No.2580904 >>2580901 Energy* I'm sorry.

>>	Anonymous Mon Feb 21 18:55:22 2011 No.2580915 File: 44 KB, 270x200, rei-study.jpg [View same] [iqdb] [saucenao] [google] >>2580854 they're energy there's only energy speed, matter, light are just a form of the energy of the universe

>>	Anonymous Mon Feb 21 18:56:22 2011 No.2580917 >>2580885 You've been told a couple of times what energy is. What kind of answer would you like?

>>	Josef !!nUf2NflSAyw Mon Feb 21 18:56:22 2011 No.2580919 >>2580885 Like you're able to troll with html insultments. Have a good night.

>>	Anonymous Mon Feb 21 18:56:22 2011 No.2580920 >>2580874 That IS a fun fact.

>>	Anonymous Mon Feb 21 18:56:22 2011 No.2580922 >>2580709 nothing

>>	Anonymous Mon Feb 21 18:57:22 2011 No.2580925 Does a photon have gravity?

>>	Anonymous Mon Feb 21 18:59:22 2011 No.2580941 >>2580885 >I do not understand what these people are saying. >Therefore it must be false. Not how it works.

>>	that guy Mon Feb 21 18:59:22 2011 No.2580942 File: 58 KB, 1024x634, 1275813521543.png [View same] [iqdb] [saucenao] [google] Well I'm glad you guys managed to waddle your way out of this one. I wish you all the best with your little retarded voyage through nothingness. P.S Suck my dick

>>	Anonymous Mon Feb 21 19:21:22 2011 No.2581066 >>2580942 Enjoy your troll-failure. You mad?

>>	Anonymous Mon Feb 21 19:24:22 2011 No.2581078 >>2580925 In GR, EM fields have an impact in the stress-energy tensor. So yes, photons bend spacetime, and hence gravitate. Just not much.

>>	that guy Mon Feb 21 19:24:22 2011 No.2581083 File: 66 KB, 650x921, silence.jpg [View same] [iqdb] [saucenao] [google] >>2581066 Can you Explain energy? No. Is everything energy? Yes. Are you a scientist? No. Are you a faggot? Yes, 100%

Advanced search
Text to find
Subject [?]Search by post subject. Leave empty for any.
Username [?]Search for user name. Leave empty for any user name.
Tripcode [?]Search for tripcode. Leave empty for any.
Email [?]Search by email. Leave empty for any.
Filename [?]Search by image filename. Leave empty for any.
From Date [?]Enter what date to start searching from. Format is YYYY-MM-DD
To Date [?]Enter what date to start searching until. Format is YYYY-MM-DD
Image hash
Search in	All Posts OPs Only
Deleted posts	Show all posts Show only deleted posts Only show non-deleted posts
Internal posts	Show all posts Show only internal posts Show only archived posts
Order	New posts first Old posts first
Capcode	All Posts Only by Users Only by Mods Only by Admins Only by Developers
Results	Posts Threads
Action	[ Simple ]