What Is Energy? | Neil deGrasse Tyson Explains…

What is energy? On this explainer, Neil deGrasse Tyson and comedian Chuck Nice explore what energy is, where it comes from, and how to release it.
How did the idea of energy come to be? Is energy different from matter? Learn about how early scientists thought about energy, kinetic versus potential energy, and how energy gets released. We discuss energy in food, fuel, bombs, and the sun. It is energy that built civilization, but will it also destroy it?
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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
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00:00 - Origins of Energy
3:25 - Storing Potential Energy
7:15 - Getting Energy Out of Molecules
10:17 - Calories
13:03 - Converting Energy for Civilization

[@youssefbh830]

Just a little mistake here, "energy" in the French language is actually a very similar word: "énergie", but I get the point Dr. Tyson was trying to make, "calorie" used to measure food content comes from Latin, and means "heat", which ultimately gave words in the Romance languages spoken nowadays like Spanish "calor", Italian "calore" and French "chaleur" (they all mean "heat" btw)

[@macysondheim]

Physicists aren’t concerned w/ French translations. Their focus is on their work. So don’t try & patronize Dr. Tyson, or downplay his contributions to the scientific community by attempting to point out some ill-perceived “flaw” or “just a little mistake.” There are no mistake. Have a nice day.

[@youssefbh830]

​@@macysondheimwhat! 🤨 I do respect him not only as a scientist in his field of astrophysics, but also as an educator and a pop science celebrity, you totally misunderstood me, I never blamed him for not knowing about stuff outside his expertise, I just wanted to point out the correct information for the people watching the video 😅😊

[@rjampiolo32]

@@macysondheim agree with you.

[@GaryGernon]

​@@youssefbh830 I wouldn't take Macy's bizarre reply to heart if I was you. A sufficient amount of people have liked your comment and so presumably found it interesting. I can't think of any reason why Neil deGrasse Tyson wouldn't also find it interesting and I certainly don't see how he could possibly find it patronising. Correcting somebody is absolutely fine (and in most circumstances appreciated), especially when done in a respectful manner, as you did.

[@TJ-hs1qm]

qué calor!

[@bharfbattlebrain7892]

One of the few things that I remember from my school science teachers... "Energy can not be created or destroyed, only transformed for one type to another." You guys did a great job of explaining this.

[@margarita8442]

except nuclear reactor-- converting mass to energy

[@keep-ukraine-free528]

@@margarita8442 You're right (if we use our basic level of knowledge). Remember, there's another higher-level concept: that "mass & energy are the same thing." So knowing this --- then even nuclear fusion/fission does not create or destroy MassEnergy. Nuclear reactors only convert.

[@margarita8442]

@@keep-ukraine-free528 yes darlinks I agree

[@808bigisland]

@@margarita8442 nope

[@MowSow]

@@margarita8442 not exactly .. it’s still conversion of energy from one form to another, the first law of thermodynamics explains that during a nuclear explosion, the potential energy stored in the atomic nuclei is converted into various forms of energy, such as kinetic, thermal, and electromagnetic energy, while the total amount of energy in the system remains constant.

[@NextStopNovember]

Always love watching these two together. Great chemistry between them. Pun intended 😂

[@naayou99]

they are just exchanging energy.

[@1tapsocietyOTS]

That's quite Punny🤣🤣🤣

[@ivaerz4977]

And biology

[@goacoa]

Yeah, they have great potential for entertainment! 😅

[@tuneboyz5634]

@@1tapsocietyOTS good one little buddy 🙂

[@alexanderjohnson2309]

Everyone loves Neil, but we need some more Chuck. We need a Chucksplainer.

[@victorhernandez4373]

Agree Can this be a thing? The Chucksplainer; I love it!!!

[@boguslocus]

Omg yes. Have chuck explain something to neil that he didnt know

[@tamtamtt63]

​@@boguslocus Neil does put him on the spot 🤣🤣

[@DaellusKnights]

Chucksplainer? No one could ever explain chuck! 😂😭🤣

[@luisdiegocr]

​@@victorhernandez4373 obituary lo0

[@donsuede1194]

When I watch your videos, it's not that I specifically learn something new. But learn a new way to think about something I thought I knew.

[@keep-ukraine-free528]

That's fundamentally what science IS and DOES. Most people misunderstand science, and assume it "replaces" what we knew earlier. In-fact, science always enhances or elaborates or adds nuance to our prior understanding(s). Your understanding changed. You didn't learn something new, but gained a more nuanced (better) understanding.

[@ThishVc-yp9xg]

@@keep-ukraine-free528 so, a cancer is a cell termites, that'd breaks your healthy cell, for " neuterient + energy " and any cell higher than your red T cell, is a sufficient hospital birth of it!

[@user-wu3rn4oc1y]

I have learned more in my life listening to these boys than ever in my life. There will never be enough Star Talk on this Earth for me.

[@AceSpadeThePikachu]

Would love to see a follow-up to this all about entropy; the fundamental property of energy to spread out and equalize in any system it's in.

[@seantlewis376]

"You down with entropy?" "Yeah, you know me!" -MCHawking

[@theamazinganonymous7847]

I guess one of the biggest facts and ways to explain the energy theorem, "energy can neither be destroyed nor created, only transformed from one or another" is the fact that energy has a tendency to expand, and like said above, get transformed into different energy; but the total energy will always remain constant. I'm not a pH.d professional or a professor to explain this well but I'll try, if you take a hot object with energy of 10. And that hot energy spreads out in the environment slowly, the environment gets hotter. But would the energy of the object decrease since it's technically given away a part of it energy? No! It wouldn't lose energy. it's total energy would always remain 10. That's kind of the beauty of entropy. And i think explains the theorem very well. How energy cannot be created nor destroyed. And the energy of the universe remains constant despite it's expansion. Sorry for the ramble, I know you didn't ask for this. I just felt like talking about it.

[@brandtreppond2167]

I truly love the chemistry between you two. I learn with a smile. I smile not solely from the jokes and knowledge, but from seeing how much you two enjoy each other's company

[@mikotagayuna8494]

One of the easiest ways to tell when someone is peddling charlatanry, pseudoscience or misinformation is how they constantly misuse or misrepresent the concept of energy.

[@UkDave3856]

I can (and often do) watch Neil content all day. I just wish that I could have had him as a teacher back when I was in high school, as he makes learning a pleasurable experience 👏👏

[@undercoveragent9889]

You realize that at his core, Snake in DeGrasse Tyson believe that the world would be better off if half of you were 'gone', right? You can get back to fellating the enemy of your children now, if you like.

[@ShortFuseFighting]

he wouldnt be able to maintain this kind of energy for an entire semester. nobody could. he only gives you the highlights and headlines . the most interesting bits of science. its an unrealistic bar to be set for other educators. behind every cool science factoid or concept theres tons of boring, mundane, repetitive, mind numbing sessions of memorization and pedestrian grunt work involved.

[@Ambrosia2830]

@@ShortFuseFighting Yeah, I came to this realisation the hard way. People (including me) think that they understand the concepts being talked about at a higher percentage than they actually do (the Dunning Kruger Effect) it makes it seem fun because its been oversimplified. However when you actually read about the topic and have to put in the hard work, memorise and think you understand the really almost monumental jobs that have to be done by teachers to teach children 80%+ of whom have no interest or the true capacity to understand these things on a more fundamental level. I've heard hundreds of hours worth of information about black holes but in reality I cant do any of the math or physics but understand the very simplified basic concept and factoids because they seem cool to me.

[@juanjoperez7537]

You and about a hundred thousand other kids

[@faelanuafintan4332]

"...a ballet of converting energy...". That makes so much sense that I was awe struck for a few minutes. The ballet dance of energy is constantly occurring....be it quickly (allegro) or slowly (adagio) or just stored at rest. The energy is just shifting around through principal dancers. Much thanks for the insight.

[@KeldonA]

Chuck is quite extraordinary. I've watched enough of this series to know he knew the energy came from the sun, but he wanted to get Neil to ask the right question (like a sort of reverse Socratic method). I'm just waiting for Chuck to publish a peer-reviewed physics paper ending not with a conclusion, but a punchline.

[@dareese6778]

Where'd the sun get energy? & Don't pull the easy god theory. 😮

[@johnparham6796]

@@dareese6778 The Sun creates the energy you speak of.

[@Tyraendiel]

@@dareese6778From fusion of atoms not heavier then iron.

[@Matt.Thompson.1976]

Thank you gentlemen for all you do for us eager learners. I was just thinking 🤔 I have the energy to donate to StarTalk. 😉❤️ StarTalk is one of the best things on KZbin.....thank you for making it so.

[@StarTalk]

Thank you for your donation!

[@WildlifeWarrior-cr1kk]

Donate five bucks to me I'm poor

[@ravenragnar]

Flawless video. Energy is a fundamental concept in physics that refers to the ability of a system to do work or cause a change. It is a scalar quantity that is measured in joules (J) or other units such as calories or electronvolts. There are many different forms of energy, including: Kinetic energy - energy that an object possesses due to its motion. Potential energy - energy that an object possesses due to its position or configuration. Thermal energy - energy associated with the temperature of a system or object. Chemical energy - energy stored in the bonds between atoms and molecules. Electrical energy - energy associated with the movement of electric charges. Radiant energy - energy that travels through space as electromagnetic waves, such as light and radio waves. Energy is the ability to cause change or do work. It comes in different forms like motion, position, temperature, bonds, electricity, and light. Energy can change from one form to another but the total amount of energy in a closed system remains the same. This means that energy cannot be created or destroyed, only transformed.

[@mygaragebandsongs7939]

Actually all that is just manifestation - doesn’t explain what is energy.

[@jamezkpal2361]

But what is it?

[@Ravi-ts2kx]

This man shows you how fascinating physics can be... If only we would get the same kind of vibe and lessons from the teachers in school, the world would probably be a better place...

[@CaravanseraiSouthValley]

As a 13-year educator I can say a couple things about this. First, this quality of teaching sometimes DOES happen in schools. And teachers who teach like this in any subject are often denigrated by their administrators and colleagues for being “too cool” or “too informal.” Why? Because this style of teaching isn’t in the textbook. It comes from deeply understanding the field of study he’s talking about. Deep understanding isn’t as valuable to our educational systems as is obedience and conformity. It’s super frustrating.

[@juanjoperez7537]

I had two burned out Science teachers in high school, luckily the last one, Physics was not and that's when I decided to go for double major of Electrical Engineering and Computer Science in college.

[@yongwaikeat9126]

@@juanjoperez7537these are heavy, lots of math and analytical energy, I will go bonkers 😅

[@brendapolar8506]

Neil I am over here trying to focus on work!! Then I go and get a notification from you. Now I have to stop what I’m doing to listen wait to what you have to say!!😅

[@crawkn]

I started looking for videos to explain what energy is a few days ago, so this is a happy coincidence. But I still haven't found the answer, because mostly people are explaining the various forms it can take. But I am beginning to suspect that we still don't have a clue what it _is._

[@seanmostert4213]

Life force & consciousness are also energy which is converted from the things we consume. All energy has spin. Even the circle of life. Even life & death is simply energy changing form. Your force is eternal. All energy, no matter what form it takes, has the same pattern of behaviour. A cyclic, duality of force that has a pair of vortices rotating in equal and opposite directions, exactly why for everything there is an equal opposite. You can see the spin in trees growing out of the ground, tornadoes, waves at the beach etc. etc. you can observe the force moving through all matter around you, I have countless examples of what it looks like, and I can share enough of my perspective to answer some of your questions.

[@seanmostert4213]

@@Justin-gv3lp it is spin. A vibration that is caused by spin. The vibration is caused by the presence of matter, and the vibration shapes matter, which in turn shapes the vibration. They are two equal opposites, one is matter, the other is not, but they are connected.

[@crawkn]

@@Justin-gv3lp keep wondering, there's a whole universe to wonder about. Saying energy is the ability to do work is like saying water is what's required to turn a water wheel, it doesn't say what water is. Particles are the form of energy that fascinates me most, because it's energy that's kind of resonating eternally, like it's moving really fast but mostly in one place.

[@jorgmintel3060]

“Energy” is actually just an artificial concept to simplify physical formulas. It’s a math trick. Strictly speaking, there is no such thing as energy in nature. Or, as Neil put it in the video, it’s nothing you can point a finger at.

[@brianjanku4549]

Energy is everything. It's the reason there is something rather than nothing.

[@lautabott_uy]

Love to see this editing going forward, 1080p with some videos referencing what is being talked about to make it easier to imagine what it would look like, amazing !

[@StarTalk]

Thank you for your feedback!

[@merkov8715]

I love the childlike excitement of Niel for even the simplest concepts in Physics. That's the best motivation to never stop learning.

[@Mikaci_the_Grand_Duke]

I was hoping to hear something about entropy too, because there's such a close connection between energy, heat and entropy. It's also worth explaining the 'heat death of the universe' and of course how it's connected to energy and entropy. But maybe next time.

[@akakakaka287]

entropy "disorder" is actually the energy (in the form of heat) that is released in such spontaneous reactions. He just didn't use the word entropy.

[@Mikaci_the_Grand_Duke]

@@akakakaka287 Partially yes, but I find your explanation a bit incomplete, we must talk about a system if we talk about entropy. Calling it spontaneous heat (or waste heat) is too simple. The reason why I would gladly hear more about these, is because most people don't understand the connection between energy, heat and entropy. It would be so nice to hear a great explanation, it's effects on the whole universe (heat death as mentioned), maybe even something about black holes and Hawking radiation too.

[@keep-ukraine-free528]

@@akakakaka287 I agree with @Mikáci's last elaboration. Entropy is much (MUCH!) more complicated. For one, it is not "disorder" as is often mischaracterized ("disorder" is an over-simplification & partly inaccurate). Hoping there's a 2nd+3rd video: energy, entropy, MassEnergy (since mass/energy are the same thing), how energy transfers ("moves"), equilibrium ("heat death" & Hawking radiation)... many complex aspects.

[@Mikaci_the_Grand_Duke]

@@graceonoja-iv6ex Boring scammer.

[@ianyboo]

"where did the log get its energy?" Oh wow that question brings back great memories of watching Richard Feynman's "Fun to imagine"

[@JaymanWuddup]

"I have another explainer bubbling up inside me" "Are you sure that's an explainer" Lord Nice you are a godsend 😭

[@defcry_again]

I would love a full episode of this. I would have so much more other questions :D

[@theunknownunknowns5168]

Big ups to the person editing in the graphics and additional footage. Thanks!

[@easytriops5951]

That‘s great explanations! Yet the question still remains: What is even energy and where does it come from?

[@mururoa7024]

lol Watch it again. 😉

[@seanmostert4213]

Energy (force) is spin, which creates a vibration, the force is created by the presence of matter. Force shapes matter and matter generates force. They are two equal opposites that are connected, they exist because of each other and the universe is shaped by their shape & interactions. Matter has physical limits, force does not. Force is able to pass through itself & matter, matter cannot pass through matter. Dark energy is our lack of understanding of this, dark energy describes something that we can’t see with our eyes, this is force.

[@ShubhamJadhav0]

There is no concept called odd or even energy. Everything is natural 🤣

[@rmeyers2021]

You know what energy is, you pay for it every month when you pay your electric bill. Energy = Power x Time. If you have 120 volt outlet, and you plug in a bulb that draws .5 amps of current, that means the bulb draws 60 Watts of power. If you keep the light on for 1 hour that is 60 Watt-Hours of ENERGY. Keep it on for 10 hours and that is 600 Watt-hours of ENERGY. If you had a bulb that draws 50 amps of current that means the bulb draws 6,000 Watts of power. If you keep the light on for 1 hour that is 6,000 Watt-hours of ENERGY. If you leave the light on for 10 hours that is 60 KiloWatt-Hours of ENERGY (60,000 Watt-Hours of ENERGY.) That's what energy is, an accounting system of Watts and time, which is POWER x TIME. ;)

[@seanmostert4213]

@@rmeyers2021 yes, that is one of many forms of energy.

[@SixthMassExtinction]

This was brilliant. Thanks guys for another fantastic, and informative episode. 👍👍

[@kevinflynn1084]

I’m a retired fireman. We used to use steam conversion in confined attic fires- taking advantage of the 1700 times expansion from water to steam!!! And good on us for finding a way to use the byproduct of boiling water!!!

[@joselevicanasenjo2171]

I am loving watching this guy. I understand better so many things

[@Swisha623]

Gotta love it when this video drops right when we are covering the chapter on energy in Bio. 👍🏻

[@StarTalk]

Hope this is a valuable study aid!

[@samuelothino2884]

A circular ballet dance that starts from vibration in the nucleus of an atom to produce frequency which accumulate to produce energy to create stability. What an eternal dance. Thanks Neil.

[@7deepbreaths.sounds]

Just picked up Cosmic Queries: Star Talk's Guide to Who We Are, How We Got Here and Where We're Going by N.D.T. with James Trefil....totally excited to start reading this!

[@dorothyedwards7225]

Oh so good! Educational, fun, and funny! Love it!! Thank you so much Neil and Chuck!!

[@bobbyquinting3918]

Energy=Everything. It can't be created or destroyed. Without energy, nothing would exist. Energy can be transfered however and this is existence.

[@Gtx8869]

Energy can’t be destroyed only transformed

[@gsav1320]

Explainers make my day. Fr I’ve used these more in real life than any of my 14 years of schooling (basics aside)

[@geneabrego9759]

5:05 - i've definitely been watching these guys way too long, as soon as Chuck said "ham sandwich" I knew exactly what he was gonna get at 🤣

[@ary-here]

The ending was perfect!

[@chriscolby4578]

This is awesome. Keep it up, guys!

[@Odin029]

I shared this video with my brother a former cannon cocker with the US Army, just to hear him vent when Neil said "back when cannons were a popular tool in warfare". I had to pause the video for 20 minutes while he explained the evolution of the cannon from the Napoleon era cannons all the way to the modern M777 howitzers that he used to crew. Listening to him get triggered was worth the delay.

[@nicholasjohnson6966]

You love you guys! Neil and Chuck are fun to watch! And informative too.

[@hermanshim8948]

Thanks Chuck, I feel better about myself. I am full of potential.

[@jonekziom]

I love Chuck's example. Ham sandwich becomes actual vomit. Technical language: stored food becomes kinetic food. 😀

[@stuartculshaw5342]

Also... "Energy has built civilisation and ultimately it will destroy civilisation". I love Chuck

[@jonekziom]

@@stuartculshaw5342 Don't forget: "I'm not fat, I'm just filled with potential!" So short video, so many great quotes.

[@jasminyala3231]

Because it was made from sir francis bacon 😢

[@ronaldodin4202]

Vomiting while on a roller coaster

[@heinousanus9352]

Potential puke to kinetic puke.

[@Gelo202]

Since I started to see this channel I have learned so much.... 👏

[@lve5571]

This is great stuff man please keep it coming. ❤

[@kariannecrysler640]

Laughed so hard, but still learned something lol😊

[@StarTalk]

The StarTalk formula!

[@joseangelmedinacornejo6362]

Excellent talk guys! Now we need part 2 on entropy 😊

[@juaneduardoherrera8027]

You fellows are great explainers. Thank you for your efforts to clarify energy.

[@vivaforever1606]

Fundamental question needed to be answered. Thank you

[@andreassheriff]

My understanding of energy is basically motion. Kinetic energy is motion in action. Potential energy is motion that can become action in motion. This seems to hold true for everything, from vibrating atoms to zooming protons to propagating EM waves. It's all physical motion.

[@TragoudistrosMPH]

There are different kinds of energy, though I'm not enough of a physicist to explain it well. Electromagnetic, has properties different from other kinds... Like electromagnetic can cancel out (block?) electromagnetic energy of the same frequency... Unfortunately, I cannot articulate a good rebuttal 😅 Too much for this bio guy lol

[@andreassheriff]

@Tragoudistros.MPH what you mean is a wave and a 180-degree shifted wave of the same magnitude and frequency. Their peaks and valleys cancel. But it's still motion. And unless they're traveling together, the original propagation will continue past the point of incidence.

[@2REACTION4U]

Limi

[@charllectric4842]

Haha.. This episode had great energy between Neil and Chuck 😏

[@barodsgroup3330]

This is soooo beautiful, and i kove how you’ve added infographics

[@EricDavidRocks]

New logo sound! Love the new format.

[@ZeniferJenZ]

Better question, what's NOT energy ?

[@SgtD85]

Dark energy

[@Mikaci_the_Grand_Duke]

Well i think it must be some kind of ability to take energy from things which do have energy, until the entropy of the system reaches its highest level.

[@V1z10n]

Me on the couch. 😂

[@2REACTION4U]

Other words than it or synonyms of it; e.g. antonyms of it

[@drsatan9617]

🤷‍♂️

[@easytriops5951]

I have always asked me what energy even is, because physicists say that everything is energy vibrating at particular frequencies, yet noone has defined energed in what exactly it even is. Also, I have asked myself wether forces like dark energy are energy as well and if so what forces and energy really are at the most fundamental level. It seemed weird to me that forces are something that pushes or pulls something, but what pushes or pulls things? What do those forces consist of? What really are they? I hope this video gives me some answers! I love the way Neil is communicating science and making it fun, despite it being hard, like Einstein once said: „Genius is making complex ideas simple, not making simple ideas complex“

[@rezadaneshi]

Simpler. Energy (mass) is a local excitation (available ready potential) on the fabric of spacetime. If potentials of electron field pass a certain density, they effect the field to focus its growth with similar curvature to its mass equivalent, with various critical mass equivalents as it grows. Mass itself in reverse, is potential energy. Edit- simplistic analogy for forces would be the peaks of any field has higher potential of its force than its valleys, and field upon field upon fields, create their own push and pull on the spacetime in possible interactions, or independently from each other. The mother force is time. It creates the duality of matter and amplifies the force by its field created by its duality to occupy space. Nothing but a massless particle can exist without time. Meaning of what we believe is a singularity. I’m not a scientist. Just a wannabe studying to explain it to myself without paradoxes to real science for a very long time building on a Simplistic foundation so I can grasp it

[@stuartculshaw5342]

Energy is something that can be converted. It has the potential to "move things" or to heat things because it is stored in some way and is then converted to do work. At a fundamental level, yes everything is vibrating and is converting or storing energy. Dark Energy is simply energy we don't understand. As is Dark Matter; Dark Matter is gravity we dont understand. We can measure it, it has an effect on our perception of the universe but we can't really say what it is or where it comes from. And yes, Einstein was a genius because he understood reality in very simple terms.

[@Mahlak_Mriuani_Anatman]

​@@rezadaneshi it's flawed but it was worth reading

[@kylelochlann5053]

Energy is the Noether charge of time-translation symmetry. What this means is that energy is an arbitrary number we can label a system with that can, under certain conditions, be conserved (the number is held constant).

[@rezadaneshi]

@@kylelochlann5053 Emmy Noether?

[@nHans]

Neil, as usual, is correct on the broader points. Which leaves me scraping the bottom for nits. Of which, as usual, there are several: • The concept of _phlogiston_ was invented to explain fires-that is, the why's and how's of burning aka combustion. Obsolete now; it's been replaced by chemistry. • The concept of _caloric_ was invented to explain heat flow. Obsolete now; it's been replaced by thermodynamics. • Classical thermodynamics explains concepts like thermal energy, heat flow, temperature, entropy etc. without resorting to atoms and molecules. • Atoms were postulated several millennia ago by Greek philosophers such as Democritus. However, they became accepted by modern science only from the 19th century onwards, due to work by Dalton, Einstein _et al._ • Thermodynamics can be reformulated in terms of atoms and molecules, giving us _statistical thermodynamics._ Classical thermodynamics emerges from it at macroscopic scales (akin to how classical mechanics and classical electromagnetism emerge from quantum mechanics). • And finally, an internal combustion engine gets hot because *there's literally combustion happening inside it!* 😜

[@KirilF]

Love it! learned so much, so quickly, and while got entertaned

[@DrewWalton]

Neil laughing uncontrollably at Chuck's silly jokes brings me so much joy. I absolutely love these videos!

[@MissingMars]

Neil & Chuck -gold as always -thanks guys!

[@TragoudistrosMPH]

I never thought about when energy was a scientific measurement and not just a generic concept. Super Cool!

[@mdaddy4ev]

Wish I had teachers like him growing up. His enthusiasm for science is contagious.

[@rechardparker293]

What is the meaning of contagious

[@msmith53]

There is a wide difference between his pay and the average school teacher...salary does matter in attracting talent.

[@CarrieMHB222]

I love the art prints in each of their homes……and listening to Sir Neil talk about science.

[@evolutionofbeliefs]

Wonderful episode..The human mind has trouble figuring out none physical phenomenon like energy.The same applies to time.Till now we can't totally understand time.

[@dianacanales2526]

You two are awesome!! I love the science! I love the jokes! Knowledge + Humor = the Best Education! Thank-you Neil & Chuck!❤

[@seeminzeb]

Thanks for the revision of high school text books, it's been a long time,you two explained in such a nice way, enjoyed the info and the jokes😀😀😀

[@robertplutchak8571]

I want to learn everything in life from Neil and Chuck. What a wonderful world it would be.

[@MehranHalimiAsl]

Hahaha, Chuck's comment on I am full of potential, cracked me up so good! Thanks to both of you for combining science and laughter! Love this show! 😂❤

[@RandomescuAleatoriu]

"Abstract human thinking" is the only thing that consumes less energy than it procuces ... in my oppinion . Great explainer with lots of "potential"

[@DendrocnideMoroides]

that is wrong by the way, our brain uses 20% of our body's energy, and anyways what energy does "Abstract human thinking" produce?

[@RandomescuAleatoriu]

​​@@DendrocnideMoroidesit produces imense "potential" energy😊

[@2REACTION4U]

Justin Belieever would wonder

[@sdsa007]

I really do appreciate the sense of humour...... I often think that with the way the educational system is setup during my generation ( and maybe still) the meritocracy was really stressful and completely too serious, and, in fact, anxiety-inducing (Breakfast Club anybody?) education in the formal sense can be non-educational especially if one has exam anxiety...... and it was really not supposed to be that way...this interaction is wonderfully intuitive, engaging and humorous. Thank you for making science fun! I am afraid if things get too serious, there will be a meritocracy of private school bad scientists pleasing their parents and that will not solve the major issues of our time.

[@rickhunter1614]

You two are awesome. Great educational content. Thanks for your efforts 🙂!

[@tuneboyz5634]

ur awesome little rick 🙂

[@Gielderst]

Neil didn't mention that Energy cannot be created or destroyed it is only transformed. Which makes me think how maybe literally everything in existence is related more or less because of this. Crazy thought. And it also leads me to think that after death maybe our energy in our bodies transforms into who knows what. Maybe there is something completely unimaginable after death. This Universe is really mysterious for sure with all these phenomenons.

[@nickbisson8243]

The law of conservation of mass states that matter cannot be created or destroyed not energy.

[@_tesla666]

Simple. After death, we return to the ecosystem. The kind of energy you're alluding to isn't the physical kind, more like 'spiritual'. And that's Pandora's box

[@nHans]

Neil is smarter than you give him credit for. He didn't talk about the conservation of energy ... because *energy is **_not_** conserved!* 😵 • Due to the expansion of the universe, Dark Energy is getting created at an ever increasing rate. Created. From. Nothing. There's nothing being transformed into this form of energy. • At quantum scales, on the other hand, virtual particles are also getting created all the time - _out of nothing!_ And when they annihilate each other - _it results in nothing!_ They don't transform into mass or other forms of energy.

[@nHans]

​@@nickbisson8243 But in nuclear reactions, matter _is_ destroyed. So clearly, the _"Law of Conservation of Mass"_ is false, isn't it?

[@nickbisson8243]

@@nHans nope either atoms are fused together to make heavier elements like in the sun or they're split with fission

[@michaelccopelandsr7120]

Neil and Chuck for 2024

[@wasifahmed123]

Love your program.. you make it so interesting and funny.. with interesting information

[@stevepaul59]

Chuck Nice, the student, has left the building. Enter class clown Chuck Nice. Both are fantastically enjoyable while learning something new.

[@zacharysherwood7178]

My guys!!❤

[@2l84t]

Fire was our first interaction with energy, other than hit it harder it's not dead yet.

[@Apollorion]

Consumption and transportation (i.e. walking, climbing, swimming, hunting and other forms of harvesting the wild (e.g. fruit) etc.) were interactions with energy preceding our first literal ignitions.

[@Cyber-Riot]

Far from our first. Walking, seeing, breathing, mitochondrial biogenesis, or even [not] freezing to death. Every movement uses and converts energy. We are constantly interacting with energy, even when we're sitting still. Even non-living things are interacting with energy as they gain and lose heat, reflect light, etc.

[@2REACTION4U]

Tesla cars

[@tompowers8495]

You two have great potential, thanks for giving up some of that for our entertainment and education

[@Donstradamus]

Neil has taught me more then my High school and my college lol 😆 ❤

[@namret12]

Love u guys beyond words!❤

[@timakey4678]

As much as I enjoy Star talk this time I heard a good description of what energy does and the forms it can take, but I still don’t know what it is. I don’t know that anyone does. Why is there something rather than nothing is one question to which I don’t know that I have ever heard a definitive answer. Why that something moves is another, similar question whose answer still seems vague. Such answers may, as Dr. Tyson has pointed out many times, simply be beyond the reach of humanity’s limited intellectual capabilities. But it is sure fun to hear it talked about.

[@weluvyy]

i have a terrible science teacher this year...now while i still have an A because i just figure things out, i swear this man here is going to carry me so much this year

[@tkonzl6059]

I had learned back in college classes that all processes (weather, winds, tectonics, etc) that occur on Earth are driven by the sun. Now I have an even better understanding of how wide the sun's effect is on life on our planet. So, I suppose there's some benefit to paying respect to the sun for our lives and gives deeper meaning to yoga's "sun salutation".

[@jcairns111]

"I'm not fat, I'm just filled with potential" classic

[@upsjetmechanic5647]

Not a six pack... A keg! Lots of potential!

[@oo-de-lally]

gas tank for a love makin' machine ❤😊

[@jaybingham3711]

Really needed to speak about free energy...and our true ignorance of where/how the energy for quantum fields (and/or gravitational fields should they need to be distinguished) as they are the presumed generators of classical objects (including atoms). Not fully understanding something has never kept us from figuring out exploits. That aside, let's now run that back: whence does energy manifest? And what exactly is it irrespective of forms it might take on? Another video is very much needed.

[@Vr00mf0ndel]

Yet another great video you guys. But you really should have added the last step and also answered where the nucleus gets its energy from.

[@alanmitchell7207]

Please talk about the energy of a photon and how photons can travel light years with the same energy

[@stuartculshaw5342]

I'm certainly no expert here, but I believe a photon doesn't actually "travel". As an observer we see it as travelling and we can measure it; but from the photon's point of view it doesn't move through time or space. A photon comes into existence a million light years away and it appears here instantaneously, dissolving into our retina as energy. From everything I've read I think that's right and it explains why the speed of light is the fastest speed there is.

[@oidbio2565]

Photons are massless particles that travel at the speed of light. They do not rely on matter, potential energy or particles to transfer energy, but rather propagate through a vacuum by electromagnetic radiation. The reason the roller coaster was able to converter potential energy to kinetic and Vice versa was because it had mass. This is why they are able to travel vast distances through space without losing energy. As they travel, photons cannot be absorbed or scattered by other particles as they have no electric charge or magnetic moment. This means that they can travel incredible distances through space virtually unimpeded. In essence, a photon's energy is conserved because it is not exchanged with any other particle or medium. This is what makes them so unique and allows them to travel vast distances through the vacuum of space without losing any energy.

[@oidbio2565]

@@DanoTV209 this sounds like a great reply but it isn’t. The statement is actually false. If it was just true, there would be no such thing as a light year. So saying that a photon doesn’t travel is incorrect. In fact, saying that “as soon as it appears, we see it”…that’s a false statement because you are talking about us and the place it was created, not the photon. Of course, if you could truthfully talk about the photon’s perspective, as soon as it is created, we see it. It is everywhere and no where at once. But what a photon IS depends on how we perceive it, not on how it perceives itself. That’s why the Big Bang shouldn’t make sense to most people if they actually think about it. How can everything come from nothing? Well the phrase “come from” is the issue because you can’t “come from” anywhere if there is no time.

[@AL_EKs]

@@oidbio2565 Actually the reason photons can travel forever - without losing any energy - is the fact that photons travel at the speed of light. Special relativity tells us that clocks slow down as velocity is increased until at the speed of light, time ceases to flow. Without the passage of time, entropy doesn't come into play. A photon coming from billions of light years away, makes the journey in an instant from the photon's point of reference.

[@oidbio2565]

@@AL_EKs that’s not true. There is no entropy of Energy

[@scooper21]

Chuck, love the jokes

[@NickB1121]

Stapleton42 (a huge Nascar fan) did a video recently on a truck with a V8 engine that runs only on hydrogen. It sounds just like a traditional gasoline V8, but produces only water vapor as a by product instead of carbon monoxide. It's very much worth the watch! The engine sounds GREAT, too!

[@dangakong6304]

i can listen to Neil all day. He is really good with explaining physics principles

[@bobbyquinting3918]

The cosmos is made of pure energy. Energy is eternal. It has always been and will always be. The thoery (not just my theory) of infinity.

[@seanmostert4213]

Well said.

[@2REACTION4U]

0

[@TreyM1609]

Energy = going 2-3 mins in the bedroom then taking a drink of water or Gatorade and nailing another 30 mins! That’s energy my friends. Gotta get that first one out of the way then come back “slanging” ENERGY. Lmao sorry Chuck and NDG just my definition

[@jadoon702]

You’re talking about slangin dat D ! On a science show…. 😂

[@2REACTION4U]

State

[@topspacesource]

The bubble up explainer joke was funny!😂 Great info..

[@jamiefields8145]

"Ever wonder what energy is? *15 minutes of listing the behaviors of energy instead of ever actually defining energy*"

[@lindajean780]

Almighty God is the Ultimate Source of All Dynamic Energy!🤨😌🥀💞💯♉

[@SgtD85]

Prove it

[@seanpadayachee6146]

Lol this channel is not for you please join other people who share the same beliefs as you do I urgently suggest you forget about this channel it will do you no good to listen to star talk

[@seanpadayachee6146]

Dam Justin well said 👌

[@moonshoes11]

That is a hypothesis for which there is no empirically based evidence.

[@b-ravemusic]

Thank you! I enjoyed every minute of it.

[@travvv470]

I booked the tickets to Neil Degrasse Tyson’s cosmic perspective on civilisations on 14 July 2023 in Singapore. I’m so excited to see him😆😆😆 (i hope i can take a photo with him)

[@sebastiangrabacki6381]

Dearest educators. I know this is an older video and I loved watching it. I heard about this thing called entropy. Can you please explain it and tell me what it is and where the "lost" energy goes?

[@barbarafreitas239]

Amazing video! Thank you 🙏🏻

[@jakestine4753]

The trick really is that we had it backwards in the start: "Things" don't exist, but "energy" does. It's wrong to think of energy as "a thing" but you CAN think of all "things" as just a manifestation of energy and forces. "Matter" vs. "Energy" is a misconception. All matter is just another manifestation of energy, one where the various forces of the universe have stored the energy in interesting ways rather than just letting it flutter about as radiation.

[@fredherfst8148]

E=mc squared…ja baby

[@keep-ukraine-free528]

Neil & Chuck, your videos always have shiny nuggets of information. And always entertaining -- errrrr, at least punny.😁 This one, however, was waaaayyyyy too basic. I suspect anyone who's taken a rudimentary high-school science course knew nearly all of this. Solution: maybe add a little visual icon (e.g. a color-coded dot in your logo in each video... to not attract too much attention) to indicate the level of audience it's intended for. Keep up the great science communication!!

[@roddneyfett444]

Neil is describing the difference between energy and matter. The key to understanding the difference between the standard model of energies and how energies can create a non-inertial position in space (particle with mass and gravity). All we are missing are the geometries like electron orbitals s,p,d,f. I always wondered how an electron could instantaneously become a photon traveling at the speed of light. It was always traveling at the speed of light with a non-inertial position in space.