The law of conservation of mass - Todd Ramsey

View full lesson: ed.ted.com/lessons/the-law-of-...
Everything in our universe has mass - from the smallest atom to the largest star. But the amount of mass has remained constant throughout existence even during the birth and death of stars, planets and you. How can the universe grow while maintaining its mass? Todd Ramsey answers that question by unravelling the law of conservation of mass.
Lesson by Todd Ramsey, animation by Vegso/Banyai.

[@Ghost-ye1im]

Raise your hand if your teacher is making you watch this to answer questions for homework

[@bigbird9992]

Me

[@kkadams9229]

my teachers making me summerize this whole video

[@Amritsari2020]

My teacher is making me watch like 4 videos [I assume all around 5 minutes long], and then doing a bunch of questions. Pretty boring, but I'm doing it right now

[@anthonydespars5098]

hand: raised

[@batoulassad6273]

meh

[@rahmirjones681]

POV: you look at the comments to get answers.

[@s0lkey]

I found none 😔

[@ok.5346]

POV: this isn't hard for you

[@nightleaking7052]

yup

[@marceltelang7825]

No I'm not

[@JH-ur7zb]

i've watched this like 6 times and still have no clue what he's talking about

[@kctjdramapalace]

Lmaooo same😭

[@RahulThakur-jn8iw]

You right

[@masonbeck34]

same :/

[@drcheese2829]

We all do

[@Xxghosty56xX]

its nice i understand more

[@mi_iz_yeppeun]

“Thanks to Einstein” Einstein He’s the reason I’m failing chemistry

[@serenahatesyouu]

everything he's saying is going in one ear and out the other

[@sukithebean3714]

tbh

[@hollyadamson4248]

Ye

[@user-dq4ng9lk4w]

Truee

[@xirfiy6785]

ye

[@emorykillian2244]

I know right I am in science class like...huh

[@Sterbann]

Pov: Your taking classes online

[@kaei193]

I’m paying thousand to basically teach myself through KZbin videos. 👨‍🎓

[@Sterbann]

@@kaei193 same..

[@Cory-xu1rk]

😭

[@wazda6488]

YUP

[@Kum_Blaster]

Same man😎

[@drsoups]

When I saw the Carbon Dioxide atom at 1:05, I thought "Dang, Carbon's gettin all the bitches."

[@sanjayvasnani4612]

lemme correct you, You saw the carbon dioxide molecule*

[@drsoups]

Sanjay Vasnani Yeah, my bad.

[@catuwu1527]

lol

[@angelhernandezvega6064]

same

[@luna-oo4yf]

Thank you for being the comic relief

[@emmu4095]

the only thing i got from this is that everyone in the comments is confused, and we are made of star stuff

[@emmu4095]

@James Henry Smith yeah sorry buster but I'm an atheist that follows science, not concepts of possible gods or outdated beliefs of the solar system

[@emmu4095]

@James Henry Smith ok you're a bit too much with your preaches, I would like to kindly ask you to leave and find someone else who will listen

[@emmu4095]

@James Henry Smith not in my eyes he ain't, we all see the world differently. we can agree to disagree

[@drypointproductions.6903]

I kinda zoned out and just started vibing to the music in the background.

[@epiphanyrose8150]

I understood NOTHING 🙃(I have to watch this video for homework and answer questions about this video I’m gonna cry myself to sleep)

[@siplezz6706]

did you cry yourself to sleep?

[@epiphanyrose8150]

siplezz no I don’t remember what this was for anymore

[@romeoa.6634]

Superfangirl 101 LMFAO

[@sidigameryt1943]

Me too, i wanna cry, but i have that finish firts after cry. Let's go!!!!! We can't stop now.

[@that1guyliam857]

pedro nunes HELP ME

[@SigmaFunction009]

Video: Energy can’t be created or destroyed Thanos: Hold my beer

[@minhman1043]

KevinGamer KevinGamer ur not funny, it’s matter not energy

[@lukev6983]

Lol, this is funny lighten up you guys

[@evelynbengry7881]

good one

[@marceltelang7825]

The energy went to the dust

[@TrainiaxMKW]

@Lilian Long you're*

[@Starstronomer]

The video is talking about the Lw of Conservation of mass which basically tells us that mass can not change( increase or decrease) in an enclosed space. For example, let's say we put baking soda inside a balloon and put that balloon over a flask that already had vinegar inside. When the baking soda falls and creates a reaction with the vinegar there will be little to no decrease or increase in mass as the atoms are not able to disperse. The only reason the mass can change is if the atoms have dispersed but in an enclosed space there is no room for the atoms disperse, hence the reason for the lack of change in mass. I may be wrong but that is what I got from the video also the example is not provided in the video, it is an experiment that my school used to teach us this phenomenon so you may not want to use that! Hope this helps!

[@ealice5633]

U are a life saver

[@Mixhe3ll3]

@@ealice5633 literally. I couldn't understand the video but I understood this.

[@ZuliusKaltaris]

you're a lifesaver thank you

[@user-sn4ts6gd4v]

*literally haven't processed anything that this guy said DJJDJFJDF-*

[@joseylastborn8790]

Yeah he doesn't spell out the part about what he means about man is being energy and matter. This is a very irritating bad habit whatever words you use what you need to say is that depending upon the arrangement it's going to change its weight. As some of the mass turns into energy the amount of mass that is attracted gravitationally to the Earth is reduced. Now I understand that some people believe that if this container prevents a infrared or just flight from getting out then the light will attract the Box to the Earth the heat in there. In other words this is hard for people to understand because the narrator has a script that accidentally or deliberately tries to keep this fact Secret. Historically the loss of mass that happens when you freeze water for example has been hidden from late Observers buy the expansion of the water into ice explaining why it floats. It would float even if it took up the same amount of space or slightly less. Liquid water has added weight per molecule because of the Heat that you have to add to ice to make it liquid. The weight of energy is of course easily solved for by dividing the equation Buy what's the variable for energy to remove it from the left side and then multiplying by m which replaces that e for energy with the m for Mass. So that means that on the right side of the equation you have M squared multiplied times c squared the speed of light and then of course you have to know what the units are as someone recently did the math for to prove what I am saying to be false but only in his mind.

[@adamsundelin]

I had to watch this video for Science homework but the comments are so distracting

[@JH-ur7zb]

same

[@alicekara4662]

Can’t understand the video for the life of you? Well then, I’ve got your back. No matter what you do to mass, wether it be a chemical or physical change, the amount of mass is always the same. You can’t create new mass or destroy existing mass.

[@melody8485]

tysm

[@justsomegirl993]

tysm

[@hahawhatever682]

A forever hero

[@hadiashah4058]

absolute life saver omg

[@drishe08]

Law of conservation of mass basically means that it can't be destroyed or created during a chemical reaction but it changes from one form to another

[@bluemuyunda4145]

Does this mean....COWS FART ROCKET FUEL?!?!?!?!?! Literally the only thing i got from the video xD

[@LifeAsAPotato]

you fart rocket fuel as well.

[@aryamankejriwal5959]

Or is a rocket just a huge cow?

[@michaelperry3604]

Shut your pie hole that’s unfunny you moron guts

[@hamzah6319]

Michael Perry your an example of that one annoying , irrelevant kid who tries to act cool and/or ruin anything e.g a joke for other people

[@michaelperry3604]

Th3D4rkKn16ht I might have ruined this “joke” if it was even remotely funny

[@khaozxx]

I love how people in your class will watch this, may see your comment and never know it’s you

[@gerardocamachoacosta6413]

2:57, If you have functional ear, you can listen at that back music right, so that music is also used in a roblox game call ''Flood Escape''' tho

[@franzsno7019]

Kevin Macleod’s royalty free music is good to use anywhere without worrying about copyright problems

[@verdeilcyprien4102]

3:54 DORITOS EVERYWHERE!

[@astroaddicted2116]

Verdeil Cyprien mlg Army!!

[@lollol6593]

lolololllolololollolololololollololoplolo

[@darrenanimatic9675]

*OMNOMNOMNOMNOMNOMNOMNOMNOM*

[@jonathangeoola5652]

@@darrenanimatic9675 yay

[@deadaccountlol340]

*aggressively throws cheese*

[@jae3966]

0:51 I see what you did there with the arms 😂😂

[@walnutbrain5471]

What does it mean tho?

[@jae3966]

@@walnutbrain5471 the number of covalent bonds each element has

[@walnutbrain5471]

@@jae3966 Kay thanks

[@wiliamdurden474]

We are all made of star stuff = best thing in this video

[@doraliu8610]

yay finally i am the 1st reply and you read this

[@aksharaa5376]

we are all stars

[@Tonra11]

Bruh

[@ambwow5969]

Tell that to a Christian

[@Tonra11]

@@ambwow5969 Christian approved

[@briannas.6463]

Who knew I’d be 29, now seeking this information out! Wish I appreciated it in school!!!

[@susanschmelzer3473]

spot on. to the point. will definitely be using this in class this year!

[@lilaphillips6384]

Bruh I HATE science class I just wanna enjoy my weekend but NO I have to watch this and answer a million questions

[@kavilwagh]

this narrator always helps me sleep..ty dude..😁

[@levishu991]

You are forgetting the biggest question. What caused the big bang? If matter and energy can't be created, how did nothing explode into everything?

[@Markus9705]

Nothing exploded, and that the thing. The Big Bang is not an explosion of matter moving outward to fill an empty universe. Instead, space itself expands with time everywhere and increases the physical distance between two comoving points. In other words, the Big Bang is not an explosion in space, but rather an expansion of space.

[@levishu991]

No shit sherlock! The big bang is more accurately described as "the everywhere stretch". I'm saying If matter and energy can't be created, then what caused all that energy to come into existance?

[@Markus9705]

Levshu Whovian The total amount of the Universe is actually zero, so no energy was ever need to "come into existence". There's a thing called negative energy, you know. This theory, the Zero-energy universe theory, states that the total energy in Universe is actually counteracted with negative potential energy. Since potential energy always is negative, it cancels out the positive energy.

[@levishu991]

Do you have evidence that this "negative energy universe" exists? or is it just another thing someone made up to try to make sense of the contradicting nature of out universe? Also, what caused our universe to come into existence along with the negative energy to counteract it? or do objects at rest tend to stay at rest unless they happen to be a universe, in which case all bets are off.

[@Markus9705]

Levshu Whovian Really, "energy" itself does not really exist at all, but is rather the integral of the force with respect to the distance which the force acts.

[@sarayaras]

So if we're all made of star stuff, does that mean we literally mean it when we say "You're a star!"?

[@kyugutz]

@Kevin Alfredo Henriquez Duran we’re talking scientifically not religiously

[@anujartt]

It's fascinating when you connect physics with spirituality

[@TheLewinator902]

If it cant be created Then how does it exist?

[@ucpegasus]

What a beautifully explained and illustrated lesson. I'll be using this to introduce the Law of Conservation of Mass to my students next week - I think they'll enjoy it! Thank you for creating and sharing.

[@peeonthepenski4729]

how'd it go

[@kieranmorris7315]

Can someone tell me what the energy in photosynthesis or combustion be called, like there is the reactants and products, but what do you call the bit that makes it happen?

[@thesushicat2674]

2:40 this part till end was out of my syllabus but such an itch in the brain! thanks for the explanation helped and satisfied my doubts!

[@EmilyRose-ud4hn]

I actually think learned more from this video than I did in my 2 hours lecture lol

[@elifmiller5625]

YOO WHY WE GOIN SO FAST 💀

[@-AKR-]

Thanks for this video... I really enjoyed it and the graphics were ultimate.... I really liked the saying at the end " we are also made of star stuff "😊😊😊😊☺☺☺☺

[@user-ng7fj6sf7i]

Amazing. Thank you for an awesome video

[@ParaMeterPeter]

What came first? The narration or the animation?

[@marwaalfahim9013]

why do you care

[@xx_zrx_xx]

Having narration come first would've been easier

[@vwlz8637]

@@marwaalfahim9013 why do you care about why he cares?

[@marwaalfahim9013]

VWLZ this was one year ago and I was forced to watch this so like my mood wasn’t the best then 😪

[@HuckleberryFFinn]

big bang lol... I don't know anyone whose satisfied with that theory of existence.

[@romeoa.6634]

HuckleberryFFinn must be tough having no friends, it’s okay tho you should just try harder 💚💚

[@TNTboom-ji5zi]

the particle animations give me joy

[@laikahmad1102]

Thank you please upload more law of chemistry

[@skye3853]

This actually really helped me understand the increase of mass, thank you!

[@srend5510]

but how does this explain life growth and procreation? like a 1yr old baby should have less atoms compared to when he's 21yr old, or does it? any article or book anyone can recommend for this inquiry?

[@olympias1528]

We eat stuff

[@SirMatthew]

We don't make new stuff, we just we just kind of absorb it. Think of something like agar.io

[@lillyplayz3368]

Thanks for helping me i really need this for my school

[@picantejaguar5994]

hey ted talk can I put this in my earth systems project?

[@juliancowley3708]

"We're all made of star-stuff" now that was deep 😂

[@richasingh156]

0:29 can anyone please explain me if energy can't pass through that, how does the transfer of energy takes place??

[@Xyzwill]

no, at least for now.

[@jenniferp902]

I have a question, why these videos does not have ads? its a hard work to make these videos so they deserve a remuneration for what they are doing.

[@tennillejohnston2566]

TED is a nonprofit

[@taahigyrahwilliams9413]

I didn't know these things..am so interested in this

[@piemaster831]

A 1- helium ion? I would have thought better from you guys! 00:18

[@genericusername562]

0:19 Helium anion represented with the Bohr model with three different orbitals. Ow. All these years of chemistry... Ow.

[@James-le8gd]

why is there only 1 electron in the 1s orbital? and being a noble gas why hasn't the electron been expelled? I'm only in year 11 chemistry but I'm pretty sure it's wrong

[@netprime2542]

Yeah

[@shaharamiah2379]

I don't get why this has so many dislikes, he is literally explaining how the law of conservation of mass works. I think it's just the haters.

[@legendscodm4269]

Impressive explanation.

[@khurramjafri8654]

I’m an 11 year old watching this for fun and I acc understand most of it

[@xxooxx923]

Tryna help me I have an assignment on this😭💀

[@channelremoved32]

Way more fun to watch when I'm playing the Animal Crossing theme in the background.

[@jae3966]

3:39 3:39 when the lightbulb in your head finally lights up and everything suddenly makes sense and you end up mind blown

[@calebboatsman7856]

2:54-3:03 -- Discussion of matter not being created nor destroyed, yet hydrogen formed from a high energy of soup of particles. Where did the high energy soup of particles come from?

[@boaz5898]

Exactly, our universe is a scientific oxymoron without something beyond the laws of physics that allows us to exist aka something comparable to god

[@brijeshabraham3393]

Biology :you're made up of cells Chemistry:you're made up of atoms Physics :you're made of up 'star dust' Me:😐

[@franzsno7019]

The atoms make up the star dust make up the cells make up the you!

[@mcrelindis]

Chemistry is the best way possible to get a blessed life

[@vijayninama9155]

Stars Are Made Up Of Atoms ,So Atoms Makes Cells -> Cells Makes The Human Body , Indirectly The Human Body is Made Up Of Stars(Atoms)..!!

[@dreep4944]

i'm tired of my teachers sending me links to these mfs

[@AC-ov5ny]

i love ted. ted is love. ted is life.

[@Im-not-Oreo11]

ted is ed

[@thisisnt_brndn]

Very good explanation. But does methane really associate with cow flatulance? If so, how does that work?

[@attor90]

This dudes Voice is amazing

[@marwaalfahim9013]

I think it is familiar

[@adudewithabetsyrossflag8125]

Nuclear Weapons: Am I a joke to you?

[@guruagencies3295]

l am do not understand language so please tell in tamil but I am understand your picture definition normally and define law of definite proportion

[@gasperkosmac7672]

Great video ...thank you man

[@maartenpost1336]

Since Einsteins E=mc^2 we know that mass is not conserved! Example: In a nuclear reaction mass is not conserved. But energy is. Always. This video is not wrong it's title is just misleading.

[@JohnSmith-li5pj]

But energy and matter are just 2 sides of the same coin, so that comment is misleading.

[@vadaverse]

smh anyone got the answers to this ws 😐

[@kctjdramapalace]

Tell meh the answers😂

[@shadowyblobfish9981]

Ask me the questions, I will answer them.

[@cindyyrcontreras]

@@shadowyblobfish9981 where is the energy added to a chemical reaction stored !?

[@shadowyblobfish9981]

@@cindyyrcontreras within the atoms, or it is released after the reaction.

[@cindyyrcontreras]

@@shadowyblobfish9981 why is it difficult to prove the law of conservation of mass when a gas is produced?

[@mcrelindis]

Very nice too watch.How many elements are they on the periodic table

[@mcrelindis]

Hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha hahahaha

[@rickj8405]

Good things are coming my way! My life is changing for the better! This will be the best year of my life! I will receive amazing news today! Thank you god 🙏

[@randommemesonmylaptop3563]

I wish

[@michaelcardin9616]

3:53 flying Doritos!!!

[@ltericdavis2237]

From gen chem to astrophysics

[@shivammay15]

So energy source should be zero? Or lose always? Or not?

[@Commodore_heavywave]

Honestly adds more question in my head. Good explanation though.

[@trxclan9012]

I think he love cows

[@lesliezamora2288]

FSJHFSJAhO i been watching this for the last 2 days and still dont understand :)

[@julesceasar7175]

1:25 what lesson it this about please reply

[@devinstipe1711]

So are we just assuming that the isolated system is our universe or can it also be theorized that the isolated system is the multiverse?

[@LifeAsAPotato]

why is science such a controversial topic.. I believe in God and all that, and science to me is really amazing. To think how far we have gone with the help of science really blows my mind sometimes. Cant we all just appreciate it for what it is? Yea, well thats not gonna happen... Humans will be humans

[@DLBBALL]

This. I guess you and me are both special for being theists as well as well educated in things like science...

[@RocketOMGYT]

People who have to watch this video for their homework or during science class 👇

[@roshanbhaimbbs]

if some of the mass is used as energy then eventually a large number of mass will get destroyed day by day leading to great loss of mass then how the mass will be recovered?

[@livingasasalamaa]

I Love All Ted Eds

[@zeebloxyt7728]

"We are all made by star stuff" How about God?

[@shadowyblobfish9981]

He simply doesn’t exist logically, only religiously.

[@Lotus3.2.2.]

That’s offensive to Christians, they don’t believe that and you can’t judge them just because you don’t..

[@shadowyblobfish9981]

@@Lotus3.2.2. No, I’m saying that he isn’t taken into account, not that he doesn’t exist

[@ericthedumbmet4699]

No.

[@mohammedalatoli5759]

i have small test on this wish me luck😅

[@robloxwithfriends9264]

What’s this song called

[@vicdrose]

Addison Anderson is basically narrating my whole schooling, I rely on these videos too much 0-0

[@hymnsfordisco]

3:11 did you just say hulium?

[@psychodog8117]

So how come when these molecules go through chemical reactions and explosions, they survive, but us humans are made out of the molecules, but when we go through chemical reactions and explosions, we don't survive, or are damaged?

[@alyssaslushie468]

the molecules survive but or body doesn't

[@mewsicman9541]

What a great question

[@shelburnjames7337]

What comes into this dimension also leaving? but is it them or us crossing the nether

[@gouravnishad6829]

but the mass changes with the increase in velocity of a particle...what about that?

[@ejerfurth8175]

So where did the Big Bang get all that energy.

[@ejerfurth8175]

Ps. Not looking for a religious debate just politely wondering because he kinda glossed over that part. Also I have heard the idea that the laws of thermodynamics where created by the Big Bang which also doesn't make sense to me.

[@bcubed72]

The laws of physics describe the physical universe. You're asking a question about "before the physical universe existed." (And, also, "before time existed.") Physics won't help; religion might help with the WHY, but not the HOW.

[@ejerfurth8175]

bcubed72 Well, time isn't really a thing it is more like a measurement created by man to measure entropy. That was what Einstein proved with his theory of relativity. But I see what you are saying. Though I do have another question. If there were no natural laws how did the Big Bang bang (I know it wasn't a real explosion but like how were the quarks attracted to each other and how was there only a set amount of energy in the universe). In my mind the only way something like this would obey the laws of nature would have to be if a infinite source of energy existed out side our universe ( it would have to be outside because according to the first law of thermodynamics if energy exists than it must of come from an outside source.) But thank you for replying. I have had these questions for years.

[@jacknarloch9879]

Lol the big bang defies every law of physics and is still 'scientific' I'd much rather believe God loves me

[@trustme7660]

@Jack Narloch yes I believe in God he started it all

[@guillermo7168]

We're all made up of stars will millions/billions of years. That means she was legal...

[@FayonHK]

What's the name of the music ? 3:58

[@Mymemoriesgift]

But why and how we have exactly what we need of atoms in earth to live comparing of other planets? if the amount of atoms is one after the big bang and no new atom make or destroyed ?

[@riskzerobeatz]

What about the newest theory that there was no big bang and the universe had no beginning nor it will have an end.

[@MilitanT07]

What theory?

[@Walzounet]

*Hypothesis

[@riskzerobeatz]

Walz Big bang is Hypothesis aswell

[@ShawnRavenfire]

It's not so much a new theory as an old one that has recently got a resurge in publicity.

[@arrubiooo2197]

riskzerobeatz It's a scientific theory

[@Markus9705]

Both mass and energy can be created and destroyed in an isolated system. However, the total amount of the energy, plus the correspondent energy of the rest mass of particles in the system, is constant. Since when did "mass" became synonymous with "matter and energy"? All matter has mass, but all forms of energy haven't a propriety of mass, including but not limited to gauge bosons, the photon and the gluon. Thus, the mass in a system constantly changes, since blackbody radiation applies to all things hotter than zero Kelvins. If light is produced, than mass is lost, because photons have no mass. However, the _momentum_ in an isolated system is always conversed, except for very local events in quantum mechanics where the law of conservation of momentum actually is broken. However, these small fluctuations zeroes each other out, so overall, the momentum is conserved. And since when did the Big Bang became a literal "bang"? The Big Bang wasn't an explosion of matter into already existing space, but the very beginning of the expansion of spacetime itself.

[@Markus9705]

***** At rest mass?

[@Markus9705]

***** No. Energy is mass times length squared divided by times squared. Mass is a fundamental physical quantity itself. You can easily see this if you consider the SI units for mass versus energy. Mass is measured the base unit kilogram but energy is measured in the derived unit Joule.

[@Markus9705]

ashX How's my age relevant to the debate?

[@IamGrimalkin]

Gluons, photons, etc in a isolated system can contribute to the mass of the system itself, even if they don't have mass themselves.. An isolated system by definition does not give off black body radiation, neither does it absorb any (if it did it would be a closed system, not an isolated one). Think of it as a white body rather than a black body

[@overwrite_oversweet]

Mass is defined as A. Amount of gravitational influence of an object B. Amount of momentum of object (for given velocity) Both of which "massless" particles posses a non zero amount of.

[@hafeatahir]

"we are all made of star stuff" is actually such an aesthetic verse.

[@ericzhang958]

Where do minioins in League come from and how are they made? Answer that for sciencetech

[@StarfruitGamer123]

Who else has to do this for school?

[@devils1]

mass comes from energy, E=mc^2

[@wbrehaut]

This equation describes how energy comes from mass, not the other way around.

[@helixpelix4473]

Can i use your half video in other language for education purpose

[@radwamustafa8380]

Thank you it is very very useful