Water-proof of Pythagoras' Theorem

[Sibidumbap]

wonderful ;-) it prooves the equality of reasoning and experience! long live monism!!

[lovelplants]

nice demonstrations..

[uthikoloshe]

@OldSchoolSkill What use are words if we persist in using the wrong ones? There is no arguement at all about what 'proof' means, thats why we have definitions, incase someone (like you?) thinks there is.

For instance:- Intuitive (Intuition) is the ability to acquire knowledge without inference or the use of reason (wiki). That would make the sentance intuitive proof an oxymoron.

Mathematics is all about rigour. This model here is about visulaisong the conjecture. The title is inacurate.

[webmastertool]

I have another water proof Pythagorean theorem. It's the original vigorous proof of the Pythagorean theorem in water proof laminated sleeves.

[typoque]

Sorry to bother you with small details, but the experiment shows that the sum of volumes (not areas) of the two "small squares" is equal to the "volume" of the square of the hypotenuse. This requires a further condition to hold, which is that the three squares are equally "thick", so that the third dimension (say x>0) cancels out:

(a^2)·x+(b^2)·x=(c^2)·x=>a^2+b­^2=c^2, to give the famous formula. Funnily, for x=0 the water volume proof makes the theorem true for all triangles(!).

[Kaulnapf]

co sa azy

[oringent]

not a proof, just an expensive way to verify the theorem for one special case

[MrGustaphe]

I find this video hard to masturbate to.

[crittinger]

i want one of those

[Romovisque]

Good use of water for a visual - now incorporate it in US Schools.

[GR1o6180339887498948]

they should try this experiment while orbiting on the outer space

[webmastertool]

If someone could design an experiment like that, chances they could of easily written down the geometric proof on a piece of paper and show the children. They were trying to make it fun for the children to understand the concepts instead of just a bunch of math symbols.

[SuperAngryturtle]

Yay MATHS!

[seidenbaum1]

Technorama in Zürich!! :D

[BiebersGurlss]

My math teacher wanna show this to us. But he couldn't found. I'll say him. Thanks (:

[Sarunikss]

water proof means not affected by water so all of you are not right

[xitzgrimx]

thats not a right angle triangle though.

[CHRISTMASBASTARD]

@xitzgrimx It is but its probably not clear to you as its upside down to let the water flow.

[TheAntiFascist2010]

@xitzgrimx good job, most people think that the theorem is sound but it isn't because it assumes that the integer one is prime. In other words there is more to the Pythagorean thereom than meets the eye and all isn't well because it becomes a two headed beast.

[windowwalker008]

In China, this is also known as the Guogu's theorem. The proof can be found in the context of Zhoubi Suanjian and Nine Chapters.

[sampowell]

this is an example of the pythagorean theorem, not a proof.

[uitlegklas]

It's not a proof of course, but it is a very nice idea and fun to look at!

[hyperhumana]

pozdrowienia dla pomysłowych rosyjskich naukowców!

;)

matematyka eksperymentalna!

:D

[Hasithism]

your sounds are bad

[reiterkruz]

WOW nice physical way for proving Pythagoras' Theorem

[InundMTG]

uthikoloshe is absolutely correct. any tit so much as thinking the word proof! when looking at this has no concept of "proof". this is a nice demonstration of a principle, not a formal proof thereof - throwing a snowball at a small child is a nice demonstration of newtons principals, however it is not proof of them - if you dont mind the analogy

[zviman456]

Proof is something general for all given cases. This is no proof, only a way to exemplify Pythagoras theorem.

You could weight the water , check it density, conductivity etc.. for the a^2+b^2 container against the c^2 container and see they are equal - or you could use bricks or any other substance, but these aren't proofs, only a specific case.

Any case involving the physical world cannot be a proof.

[wenaolong]

@zviman456 Maybe exemplification is the truest form of proof after all. Have you proven otherwise?

[TheSilligirl]

This is no general proof tho, just for one case

[shanadono]

this is awesome. Anyone saying otherwise needs to check their jealousy.

[ryanbliksem]

can anyone tell me how i can make this thing?? i can it make of iron but, is that good???

[lemaitrethemonk]

clever.. where can i find one of those?

[ThunderAppeal]

If youre so smart build it yourself moron.

[ThunderAppeal]

The only thing this proves is that water flows down hill because of gravity.

Saying this figurine proves a mathematical formula is just a demonstration of how desperate and lonely these nerdy mathematicians have gotten today.

Put this figure up in space with no gravity and see what happens? Nothing because there wont be any gravity to move the water. You stupid morons.

[dragongrl2004]

Sorry you had a bad day, don't take it out on others.

This is demonstrating the Pythagorean Theorem which says that if you have a right triangle and square the length of the legs and add them together then it will equal the squared length of the hypotenuse.

This is demonstrating that a length squared plus a length squared is the same as the largest length squared. It is actually a really nice demonstration of the concept. This was not suppose to be a demonstration in gravity, just in area.

[conormang]

hahahaha thanks for making me laugh. See you at McDonald's, fry-cook.

[lemaitrethemonk]

the two smaller squares equal the larger square in area shit stain!

[abcabcabc5000]

@ThunderAppeal You dun understand? A^2+B^2 = C^2, so in this demonstration, the square of side A + the square of side B = Square of Side C

[Psychonaut2021]

Jesus fuck, you have no idea how stupid your comment was do ya? It isn't about gravity or how the water flows; it isn't about the liquid at all.

It's about the area the fluid covers. Thats it. Doesn't matter if its in space or whatever, what matters is the area.

Calling everyone else stupid morons because you failed to understand it, makes you the ultimate douchefag.

[netjap23]

it was about the air moving inside. the two upper side square liquid is being pull by the gravity. And the lower box is not empty at all because of the air occupies

the none blue part. The liquid just flow very slowly unlike if it dont have any containers. It was about the space and gravity sir/mam So the air moving counterclock wise. I hope I help.

Sorry bad english I did not came from english speaking country. :)

[AlbertRonzo]

Great

[jwm239]

...a really nifty demo of that classical

piece of elegant mathematics!!!

No more 'watered-down' proofs needed!

[OMGMehGoodness]

So cool! EC!!!!!! :)

[sergio7skill]

se ve como no stan rellenados completamente los dos catetos..

[Uninvulnerable]

is this in the phaeno in wolfsburg, germany? i went there twice and that was such an interesting experiment, makes this abstract formula become real-life-understandable

[robertwc82]

ooohhhh now i get what is meant by the fromula

[vee00Roar]

No mathematician would accept this "proof" it is an experiment not a mathematical proof.

[ilklr]

While this may not be mathematical proof, it is proof nonetheless. It is just a matter of HOW to prove it mathematically.

Any mathematician working on proving an unproven theorem would LOVE to see physical proof like this. 95% of the work is already done.

[uthikoloshe]

Ilklr said "While this may not be mathematical proof, it is proof nonetheless."

Is it EVIDENCE, not PROOF. The triangle here is one of an infinite number of possible triangles. This experiment checks only one of them, so pythagoras is not proven, the experiments does nothing more than provide evidence that it might be true.

[Gitars5]

lol you havent understood the theorem

[uthikoloshe]

Yes i did, perhaps you didnt understand the objection? :p

[0nePumpChump]

@Gitars5

You don't understand what "proof" means in mathematics.

[cornershot94]

@uthikoloshe however, we should all appreciate that it is cool

[wenaolong]

@uthikoloshe That is only according to one paradigm of what constitutes proof. One paradigm out of how many possibly true paradigms?

[uthikoloshe]

@wenaolong I refer you to rule 11 of the 'woo woo credo'.

[TheAntiFascist2010]

@uthikoloshe i know for certain that the Pythagoreans are wrong. The theory assumes that one is a prime integer. Pythagorean philosophy and mathmatics cannot make the jump to language because it is primarily one thing. It cannot be two things which is generally what it is always trying to do. In other words. One is a whole number. Why is Pi infinite? Because the theory makes jumps that are irrational and inconclusive ending with unknown infinite space that can only be measured by creating a

[TheAntiFascist2010]

@TheAntiFascist2010 parallel world which is done in linguistics through the birth of Pi. SO, Pythos in the greek, the dragon Appollo kills and there is rumor that there are two dragons. The Pythagorean myth basically creates its own mythical construct or alternate set of integers where the integer one is now .5 or two smaller ones. Get it?? So there are three ones, now all ones are threes. So there can never be equality in the system only dominant patterns of three dominating one or one itself.

[Togerax]

@uthikoloshe yeah but mathemathical calculations can easily prove that the theory applies to all 90 degree triangles

[Blackfriday420]

@uthikoloshe I can prove it mathematically and so can a million other people.

[uthikoloshe]

@Blackfriday420 Well done. Whats your point?

[Blackfriday420]

@Blackfriday420 ughhh, that it can be proven mathematically.

[eduardocenter]

Not a proof perhaps, but a confirmation. If it did not work something would be wrong; unless it had CO2 or something.

[datstick17]

uh our teacher told us 2 look at this

[KamilBorat]

3d is not 2d :)

[gnamp]

if the 3rd dimension is the same for all three vessels, that's immaterial.

[KamilBorat]

right, but we don't see the 3rd dimension :)

[SparkyXX]

It's reasonable to assume they're all of the same depth. This is a physical demonstration, not a mathematical proof, so lighten up there Charlie.

[Pwnagemerchant]

this isnt proof

[gnamp]

er... how not?

[hoggg11]

cool vid!

[fogggygyrl]

The Chinese used the "Pythagorean Theorem" at least a thousand years before Pythagorus learned of it in Babylon as well. We aren't taught about this history in school here in the U.S. Dimthelight is right.

[honeybbqgrundle]

We aren't taught ANY history of math (in high school at least). For most students (and teachers, sadly), there is no history of math- it's just a bunch of rules that have always existed.

In any case, just because somebody did something before you doesn't somehow make your discovery any less meaningful. A 10 year old who discovers the theorem for himself is no less impressive just because he was born later.

And lastly, maybe most importantly, did the Chinese or Egyptians prove the theorem????

[warior949]

coooooooooooooool

[pbicudo]

ReCtangular triangle

[goaly33]

Genial

[nojameson]

Nice physical demonstration but it's not a mathematical proof!

[Pip2010]

Dimthelight, the babylonians may have been doing it before the greeks, but the greeks were the first ones to prove it. Think before you discriminate dumbshit.

[Pip2010]

Haha

[jahdallah]

Notice thwt the two smaller squares were became empty exactly at the same time regardless of the fact that one square is bigger than the other.

[deadlybug]

Jahdallah, PHYSICS. Ever heard of that? It's got this law regarding connected vessels, saying the water level in such would always be even. Seriously, you may try that out for yourself, amazing, isn't it?

[SVR180]

do mak dis we an makna waher

[seirios12a]

look again the video and tell me who is the stupid again. Idiot.

[seirios12a]

wait for your messiah . the antichrist and the money is your god and the hate ofcource

[seirios12a]

Ancient Egyptians are brothers with ancient Greeks. Why are you so stupid now? Babylon is the city where alexander the great love it so much.

[seirios12a]

Hitler invaded to other countries for slaves and without warning. Alexander first make contact with a proposal and his not make the people slaves. Many soldiers married with womens from this countries.

Except the political reason , give her the philosophy , the maths and many culture.

[seirios12a]

.pepper to your mouth, i don't talking like this about your country. Please some respect.

Your priest says for ancient greece and atlantis. The time is 9.650 B.C.

Timaios and Kritias by Plato. It is in your books list in your profile i think

[amirfarid91]

well said! anti-zionists rock! no serious

[seirios12a]

Zionism my friend his hold sway over the politics of U.K. and U.S.A., very powerful lobi. I don't like em and the zionists the greeks.

[amirfarid91]

i thnk the name dimthewit would serve u well

[naaaazzzzz]

i speak russian too :D

[Pathagarus]

Dam i am soo smart

[misoneill]

This is NOT a proof, it is merely a demonstration it only shows that it works for one right-angled triangle.

[pitho100]

Sure. I believe that most of the people who saw the clip understood what it was.

[sasapat]

great work pitho100!

don't mind those simpletons.

[wowweee12]

Thats A Really Good Way Of Putting It! =]

[placeborick]

excellent idea!!

[leejat]

it means that hypotenuse or the longest side of the triangle is equal to the sum of the squares of the two remaining legs...great vid...

[jupiterjjrm]

It's the square of the hypothenuse that equals the sum of the squares of the two remaining legs. It's a matter of area (more precisely, of volume, but the containers are all equally thick). (Note you're describing a straight line in your statement)

[leejat]

yes, i just missed that, its the square of the hypotenuse equals the sum of the squares of the two remaining legs. the hypotenuse is the longest side and is opposite to the right angle.

[salman265]

and...;

whats that mean or proff

[jupiterjjrm]

Big volume = sum of the two smaller volumes. But since the recipients have the same thickness, it proves BIG AREA = SUM OF THE TWO SMALLER AREAS, which is precisely Pythagoras' thm.

[pbicudo]

That´s right, because if u have a retangular triangle, let´s say, x^2 = a^2 + b^2, U can multiply both members by the same number, let´s say, Z, and the equations remains true. If you say that x^2 = a^2 + b^2 , x^2.z = a^2.z + b^2.z remains valid.

[salman265]

and...

[dazmataz10]

I like you

[kassemmerl]

nice idea

[tauren00]

nice