How taking a bath led to Archimedes' principle

How taking a bath led to Archimedes' principle - Mark Salata

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Күн бұрын

View full lesson here: ed.ted.com/lessons/mark-salata...
Stories of discovery and invention often begin with a problem that needs solving. Summoned by the king to investigate a suspicious goldsmith, the early Greek mathematician Archimedes stumbles upon the principle that would make him famous.
Lesson by Amdon Consulting's Mark Salata, animation by TED-Ed.

Пікірлер: 560

@tc225k 10 жыл бұрын

The original showerthoughts

@corbinleconner8588 7 жыл бұрын

Flatx1 finally a decent comment not complaining about the video.

@TherealSoggyCan 3 жыл бұрын

Me with a time machine Creator of Homework:Dead Creator of school:dead Creator of Maths:deas Creator of Arxhimedes Princepicel:Not dead Me:looks like i need to go again

@rockinggirl0610 3 жыл бұрын

😂😂😂

@SXC01 Жыл бұрын

For real

@chichobar1705 Жыл бұрын

LOL

@niclemaire4307 9 жыл бұрын

thumbs up if you watched the video for science class xD

@alexyu1236 9 жыл бұрын

Nic Lemaire i watched this so i can learn about gold/silver precious metal testing

@CrunchyDark 9 жыл бұрын

Nic Lemaire Critical thinking class here :P

@emmanuelfuentes3650 8 жыл бұрын

+Nic Lemaire I watched it for a math class

@PokeShadow77 8 жыл бұрын

math

@ramoniiituble414 7 жыл бұрын

Nic Lemaire I watched it while watching Pinoy Big Brother (Philippines).The show is creating a boat that must float in a swimming pool

@iwasbetrayed4noodles31 3 жыл бұрын

Thought the title was ‘how taking a bath led to Archimedes’ Pimples’ instead of principals.

@luciannarosee 7 жыл бұрын

My teacher showed this video to my class, thank you!

@manoramayadav1511 6 жыл бұрын

Lucianna Gaming And More! Me too

@Moselae 10 жыл бұрын

The goldsmith knew that was exactly what the king would do. So, he made sure the mass is equal. But, that means he had to fiddle with the volume because the mass of gold does not equal the mass of silver. Thus, the key was in the volume.

@paramaguru2007 Жыл бұрын

I think this part of explanation was missing in the video!

@zabintasrik4488 9 ай бұрын

We can still defeat it by adding something a lot denser than gold in the equation, and balancing it by mixing with a lighter material to achieve a close enough overall density and volume to gold, then just add a thin layer of gold on the outer surface, maybe using a technique like galvanizing. Sadly the blacksmith didn't have access to such complicated techniques of cheating nor wise advisors, hence he got caught.

@makodarra8480 7 жыл бұрын

Thank you so much for the concise yet useful information given in these videos. They definitely help me in a lot of my homework and studies :)

@TorBarstad 11 жыл бұрын

Awesome story and awesome animation. This TEDEducation-thing is a really great concept! I haven´t seen many of the other videos though, so it might be just this one, but just so you know for future videos: The humming noise in the background can probably be removed quite easily with the help of Adobe Soundbooth :)

@rizzserafin7825 4 жыл бұрын

This was mention in our class before, ( i forgot if it's during my elem or high school days) our teacher left us hanging on what did this philosoper found out after putting the crown in the bath ( or so like that) after many yeaars, here I am at last.

@Wise.Leader 8 жыл бұрын

Though I learned this during the early years in High School, this is certainly refreshing...

@paprarazzi 3 жыл бұрын

No one: Literally no one: Video: BATH IS MAKING HISTORY

@aryzzcool 11 жыл бұрын

simple & yet perfect story

@thedoctor855 6 жыл бұрын

2:48 I watched this in science and at that moment exactly that was a half dab and I pointed it out and the reaction was 9.9/10

@hollybanana9096 3 жыл бұрын

wdum

@Jossegossegrisfis 10 жыл бұрын

I didn't get archimedes' principle at all before, but now I think I get it! This video has helped my physics grade a lot

@jaredbowen3527 4 жыл бұрын

THAT MAN WAS SUPER SMART FOR HIS TIME

@user-yj4qz5lo6k 3 жыл бұрын

Many ancient Greeks were geniuses. They even calculated the circumference of the Earth

@boldswagon 11 жыл бұрын

It is important to realise that the concept that a submerged object displaces a volume of fluid equal to its own volume is not Archimedes' principle. Archimedes' principle, equates the buoyant force to the weight of the fluid displaced.

@davidecardullo1779 Жыл бұрын

basically you are the only one recognising it in this comment area :(

@user-ry1xu9er3w 7 ай бұрын

such amazing story and animation

@Ye___89 4 жыл бұрын

who watched this in science class?

@ryannrafeek2832 3 жыл бұрын

Vyx Comrade Yoshi me😭

@tristankuzdak7522 3 жыл бұрын

Me lmao

@SXC01 Жыл бұрын

Fr 💀

@Dg0swe5ts 11 жыл бұрын

Beautiful animation and great story. I'm going to show this to my eighth graders this week. Thanks TED-ED!

@cloudeie Жыл бұрын

did they like it

@livinlife123 Жыл бұрын

@@cloudeie 10 years late buddy

@cloudeie Жыл бұрын

@@livinlife123 5 months late buckaroo

@xtcyrafa Жыл бұрын

@@cloudeiethey already graduated from college by now lmao

@cloudeie Жыл бұрын

@@xtcyrafa ok but did they like it

@PIPOx04 11 жыл бұрын

THANKS FOR DOING MY HOMEWORK!!! c: i needed to research about that dude, now i have it all in a simple entertaining vid.

@Baby_kitale_ 3 жыл бұрын

2020 we learn and I just cheat it

@MilesDeep 11 жыл бұрын

I think that this should be shown in schools, Its better than most of my teachers.

@gr33nman 11 жыл бұрын

This is one of the better TED ED's. :D

@matfish2 7 жыл бұрын

Bravo! Best explanation ever.

@bobibridges 9 жыл бұрын

I feel its this mass that has the relevance in the story, the mass of the crown and the gold are the same but when placed in the water the silver crown displaces more water than the gold because it requires more material to be of equal weight.. That's what I get from the story. I could be wrong.

@chinmaysharma7735 2 ай бұрын

Thanks for clearing my doubts regarding this topic

@MohammedHassan-sd4fh 10 жыл бұрын

incredible! nice job and thanks!

@markludlow8858 10 жыл бұрын

So helpful. I could use it to answer a homework Question. THANKS!!

@asyrafebo4609 8 жыл бұрын

who's watching this on 2016, anw i love it easy explanation on what is archimedes principle. thanks

@masqueradian2028 7 жыл бұрын

I love the story of the medics bird... Yes i'm a nerd

@danielmeiring1858 7 жыл бұрын

Asyraf Cboy I'm watching in 2017 😂🤛🏼

@soimlegendary6533 6 жыл бұрын

me toooooooo

@vishresh7080 6 жыл бұрын

im studing this in 5th grade

@atomix1876 6 жыл бұрын

Pause at 1:23

@sxnnydxys2104 3 жыл бұрын

Pov: You came back to this video after class to either comment or rewatch it because you forgot the answer to a question from your notes

@arvinjaylo7430 5 жыл бұрын

I love the idea of having this Kind of channel

@tasosne 11 жыл бұрын

From Wikipedia: "Archimedes' principle is a law of physics stating that the upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid the body displaces. In other words, an immersed object is buoyed up by a force equal to the weight of the fluid it actually displaces." So I think that the end of the video is wrong...

@realityacceptor3068 8 жыл бұрын

I understood everything but at the end of the video why was the water level of the container which contained the crown in it higher than the container of pure gold ???

@Agentenaranja1968 8 жыл бұрын

+Reality Acceptor It must be a mistake by the animators. Since the crown was less dense the displacement of water should have been less too.

@doraemon551 8 жыл бұрын

I guess since crown was less dense, then the amount of water that is removed from container is also less. that is why we see the level of (the remaining) water in crown's container is higher than the one with pure gold in it.

@realityacceptor3068 8 жыл бұрын

volume is the same, which means mass wont have any effect

@PavanSai033 8 жыл бұрын

+Reality Acceptor Mass of the crown and the coins is same. Volume differs. Less denser Crown will displace less amount of water. As the coins have more density, the amount of water displaced is also more.

@realityacceptor3068 8 жыл бұрын

+Pavan Sai volume is independent of density my dear

@MrCEO-jw1vm 5 күн бұрын

wow! that was just pure genius!

@eloyzwift 11 жыл бұрын

Thank you! I have a nice movie to show in my lesson about the Archimedes principle!

@miltondall7955 7 жыл бұрын

In those days SG was not used although Density of substances was. Archimedes was well versed in boyancy of boats. What he noticed was that when got out of the bath that ran over when he tried to float in the bath, the volume now missing was the same as his body. He could now make a 'milli-cubit' cube of gold to determine exactly the 'Relative-density' of gold to water. The story goes on and on.

@01824747 3 жыл бұрын

luv the ending •~• I’ll be like him someday : >

@OgamerNL 11 жыл бұрын

Brilliant video once again =]

@hen6964 3 жыл бұрын

Ohhhh I never forget this principle through out my life

@abhayanand9585 Жыл бұрын

Wonderful!

@archimedessyracuse9200 10 жыл бұрын

Thank you for the video

@mamatabarman3721 5 жыл бұрын

Archimedes Syracuse u eryffhig

@clauchelles 11 жыл бұрын

Thank you

@paulad4755 4 жыл бұрын

This is so helpful thank you 🙏 I needed this for my coronavirus home schooling 😂 I had to make a comic out of this thank you so much 😊

@yaruki_5 4 жыл бұрын

Meh too

@sydneystroud9206 3 жыл бұрын

Gene De Leon wow same yall

@antonyamalpadiyapurathfran4836 2 жыл бұрын

isnt the water in the bucket which has crown should be lesser than the that with gold coins, right?

@ianneglazer998 8 жыл бұрын

cool explanation

@sonalisaha2280 9 жыл бұрын

this is an amazing video, witty and educational, does it jovb very well, wonder if there are more science videos like this, science would be so much fun then!!!!11

@parulaggarwal9405 6 жыл бұрын

Thank u TED for dis video....

@misterengels 11 жыл бұрын

This is not archimedes' principle. The principle states: "the buoyant force on an object immersed in a fluid is equal to the weight of the fluid displaced by that object."

@jennyg5426 4 жыл бұрын

Archimedes: Greatest mathematician of antiquity.

@CLEANDrumCovers 11 жыл бұрын

This is great.

@bonniekyoto7605 3 жыл бұрын

Wow even after a few years I needed this for Science Class lol

@taopanda98 8 жыл бұрын

BEST STORY EVER!

@mynahification 5 жыл бұрын

These type of science stories are often exaggerated or outright lies

@organiccheesetoastie896 3 жыл бұрын

this is epic needed this for science pog

@umuterdogan5735 6 жыл бұрын

Suppose the crown has enclosed air bubbles. It still would be of pure gold but would have a bigger volume than the coins. So the crown has to be melt to get rid of the extra volume of the bubbles. For sure, the amount of extra volume from the bubbles must not lead to a total density of the crown which is below the density of water. Because then the crown would swim.

@kevindevinlevin9995 11 жыл бұрын

i'm going to learn about this tomorrow

@Polarbomb15 11 жыл бұрын

From this video, I actually learned something. At school, unless maybe they showed this video, I'd never understand it

@historicflame972 3 жыл бұрын

Dude said I smelt bad but he doesn't smell good him self

@TheBlueHokage 10 жыл бұрын

Eureka!!!!

@Truthiness231 11 жыл бұрын

Lesser known story: after the goldsmith was executed, Archimedes reached down into the water to grab the crown and a large air pocket was released, lowering the level of water down to where it should be. There were red faces all around, you can count on that!

@NeetuSharma-wo8bc 6 жыл бұрын

so good

@AFRoSHEENT3ARCMICHAEL69 Жыл бұрын

No when he said eureka he had an epiphany. A realization.

@TheRyuzaki33 9 жыл бұрын

Wonderful Animation and story telling. Great job! But something feels wrong here with the explanation.

@CyberFiber 7 жыл бұрын

You are the best @TedEd

@cytroop 11 жыл бұрын

Can someone help me understand. If something has a higher density than another object of same volume. It weights more. Doesn't it? So why didnt they just weight the crown, and compare it to the weight of the ammount of coins he gave? if someone can explaine it to me, id be very gratefull.

@marcpaulglimada3332 5 жыл бұрын

there were no levers or weight measurements on that time and it was a very big challenge for archimedes to solve the problem.

@emmyfortunecookie 10 жыл бұрын

Helped with my project!!!!!!!!!! Thanks!!!!!!

@DonRade 11 жыл бұрын

You should show them other videos too! ;)

@TheMikeros 11 жыл бұрын

best chanell ever , love it !!

@elisabullen8916 5 жыл бұрын

Omg thank you so much!

@maciejwojcik1609 2 жыл бұрын

Thanks

@mobluse 10 жыл бұрын

What they call Archimedes' principle in this video is not actually Archimedes' principle. The real Archimedes' principle is that the measured weight of the crown diminishes by the weight of the displaced water. "Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object." -- Archimedes.

@jeffsh20 9 ай бұрын

yea ur right Archimedes' principle deals with the upthrust experienced by a body immersed in a fluid.

11 жыл бұрын

I was fascinated when my physics teacher told this story to my class in middle school :D

@seigeengine 11 жыл бұрын

You're right, but Wikipedia wasn't wrong. An object suspended in a fluid, displaces fluid until it has displaced fluid whose weight is equal to it's own, up to the volume of the object. Obviously it can't displace more than it's volume, but it can displace less than it's volume if it's light enough that it isn't fully submerged. Think of two identically sized balls, one heavy, one light. The light one floats, so only a portion of it's volume is displaced, but all of it's weight is. The heavy one

@jebc4652 5 жыл бұрын

Interesting, it's great to know where the famous eureka phrase comes from.

@kevindevinlevin9995 11 жыл бұрын

this is the 1st ted ed lesson i understand

@sujaankhanna 4 жыл бұрын

If we take a ball of same weight and volume. The buoyancy and weight will be balanced so if we put the ball on height 'h' from top then will it go up (float), or it will go down (sink) OR it will be on 'h' height only (as it is not practically possible that an object stays the place where it was)

@mudasiruddinkhaja5755 10 жыл бұрын

thanks a lot

@brd8764 3 жыл бұрын

The story is about losing sense, staying clean and knowing science. And that what one learns is of importance which matters to all those who know science. Science is for understanding and maths is for calculating for use.

@dimamatat5548 5 ай бұрын

The only error is that it mentions the King of Sicily, when the title of the ruler Archimedes served under had the title of tyrant, and he did not control all of Sicily, just the city of Syracuse and the surrounding area.

@sooryanarayanan4273 Жыл бұрын

beautiful

@ShampootheSpider2019 3 жыл бұрын

1:22 port city on California was named after the same thing that guy said

@aryensujjan 8 жыл бұрын

That was amazingly awesome OMG its useful for my teaching

@ayanmaity3239 6 жыл бұрын

Still watching in November 2017

@raileanulucian 11 жыл бұрын

this is great, I will be taking a bath now!

@galegogalio 3 жыл бұрын

thanks school for sending me this 🐸

@Nikephorus83 11 жыл бұрын

You really shouldn"t rely on wikipedia for knowledge tasos. The Archimedes principle is all about volume (not weight), based on the fact that water (and all fluids) are practically incompressible. The video has it right.

@patriciarejimon1223 11 жыл бұрын

nice video!

@seigeengine 11 жыл бұрын

This isn't what the video was talking about. An object suspended in a fluid displaces it's own weight in that fluid, up to it's volume. If it can displace it's own weight, it floats. If it can't, it sinks.

@nickandbarry1777 10 жыл бұрын

freakin' awesome

@MrBiffo13 9 жыл бұрын

The diagram at 2.36 displays the displacement in the jug with the crown wrong. The water level should be less than the gold if silver was used to make up the crown and hence it was less dense than a crown made of gold only.

@louisisakeg 9 жыл бұрын

Brian Carroll Not necessarily, the displacement of the water is in relation to volume not density. The density of the metal does not affect the displacement of the water, the displacement is related to the total volume of the metal. A more classical example of the Archimedes principle the crown is balanced on a scale with gold. The crown is an irregular shape so it is difficult to determine its volume however in this case if it were pure gold then their volume would be the same no matter the shape (if you melted the crown and the coins down they would make the same size square). However, silver is less dense (lighter than gold) and as a result requires more volume to achieve the same weight as gold. Therefore if you were to balance a crown with silver in it on scales with pure gold the crown would have a greater total volume than the pure gold does. And as a result a greater displacement in the water. So the illustration on the video is in fact correct (although very exaggerated). In other words, the crown and the same amount of gold are equal to one another. But due to the shape of the crown you cannot tell if it has the same volume. The weigh the same but do not have the same volume and the displacement in water can determine the volume of any object regardless of its weight.

@tonyilias2561 10 жыл бұрын

I have to watch this for school.

@iamhappythingy9258 5 жыл бұрын

that intro somehow makes me think deep

@seigeengine 11 жыл бұрын

sinks, and all of it's volume is displaced, but not all of it's weight.

@alexandrugeorge1573 3 жыл бұрын

This video is actually not describing the archimedes priciple, just a mass/volume/density video. The priciple refers to buoyancy force that acts on objects in liquids/gases.

@enderfox1699 2 жыл бұрын

I just had a eureka moment in this video in maths, lol. I love math

@benjaminstockins362 9 жыл бұрын

It was to find out the density of the crown,since density=mass/volume and the densities of gold and silver are different

@jackcopeland9193 9 ай бұрын

I don’t care how good this was, I have to watch it for school today so it sucks

@Voidyboi69420 8 ай бұрын

I agree

@Voidyboi69420 8 ай бұрын

I have a homework on this due tomorrow it sucks😂

@dvcallen6872 2 жыл бұрын

Thanks for the video. Why would an object with the exact same volume and shape move more water if it's silver than if it was made of gold? I don't get why a lighter density object would move more water that a higher density one? The mass and volume are exactly the same after all...

@aditithomas291 2 жыл бұрын

if the mass and volume were same, the density of both the crowns would be same. gold is heavier than most metals, hence the mass is not same leading to different density.. volume and density have inverse relationship that is less volume = more density and vice versa. hence a lighter density object will occupy more space leading to move more water...

@coffeeperson1461 10 ай бұрын

@@aditithomas291 But if the outer size and shape are the same they should move the same amount of water. Where does the extra water come from?