Can you solve the time travel riddle?

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Can you solve the time travel riddle? - Dan Finkel

Рет қаралды 3,364,009

Күн бұрын

Practice more problem-solving at brilliant.org/...
Solution to bonus riddle: brilliant.org/...
Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through before it closes and leaves him stranded in history. Your only way back is to grab enough colored nodules to create a new portal to open a doorway through time. Can you take the right amount of nodules to get back to the present before the portal closes? Dan Finkel shows how.
Lesson by Dan Finkel, directed by Artrake Studio.
Thank you so much to our patrons for your support! Without you this video would not be possible: fatima kried, Begum Tutuncu, Lala Arguelles, Mehmet Sencer KARADAYI, Christian Kurch, SungGyeong Bae, Luis Felipe Ruiz Langenscheidt, Joe Huang, Rohan Gupta, Senjo Limbu, Martin Lau, Robson Martinho, Cailin Ramsey, Aaron Henson, John Saveland, Nicolle Fieldsend-Roxborough, ReuniteKorea, Venkat Venkatakrishnan, QIUJING L BU, Yoga Trapeze Wanderlust, Jaron Blackburn, Alejandro Cachoua, Thomas Mungavan, Edla Paniguel, Anna-Pitschna Kunz, Tim Armstrong, Erika Blanquez, Ricki Daniel Marbun, zjweele13, Judith Benavides, Ken, James Bruening, Michael Braun-Boghos, Ricardo Diaz, Kack-Kyun Kim, Artem Minyaylov, Danny Romard, Yujing Jiang, Stina Boberg, Anthony Wiggins, Hoai Nam Tran, Joe Sims, David Petrovič, Chris Adriaensen, Lowell Fleming, Sunny Patel, Vijayalakshmi , Uday Kishore, Aidan Forero and Leen Mshasha.

Пікірлер: 2 900

@TEDEd 5 жыл бұрын

Get the solution to the bonus riddle here: brilliant.org/TedEdTimeTravel/! Also, the first 833 of you who sign up for a PREMIUM subscription will get 20% off the annual fee. Riddle on, riddlers!

@victora73 5 жыл бұрын

TED-Ed pls make more riddles

@yorelyoung6407 5 жыл бұрын

The answer is yes. It will always be 2.

@RiteshNEVERUNIFORM 5 жыл бұрын

I would take 7 and place it 1 at centre of the 6 nodules.!! Of cource 6 will be the minimum number.

@MatthewSmith-wx9wy 5 жыл бұрын

TED-Ed is way too hard with their riddles!

@IvanIvanov-ui9ow 5 жыл бұрын

Check my page for ideas to your next travel destination instagram.com/travellgoal/

@Gdf353bgy 5 жыл бұрын

*Bold of you to assume that I'm helping this guy out*

@sometimessnarky1642 4 жыл бұрын

An intern no more! He's playing Jurassic park and your writing your thank you speech for the Nobel prize you are about to receive for time travel technology.

@tabitha9723 4 жыл бұрын

Anyone who “accidentally” falls through a time portal can’t be trusted

@itram99 4 жыл бұрын

imagine how rich you'd be if you sell his laboratory

@neutralpie420 4 жыл бұрын

I want to like this comment but it has 420 likes. Please keep it at 420 likes.

@scribbler_crowe 4 жыл бұрын

*Well yes, my text IS bold*

@kroniclenonicle9100 4 жыл бұрын

"You only have one minute to go in the portal" *alright then...lemme spend 3 minutes thinking about it*

@ErmisSouldatos 3 жыл бұрын

Or you take your time thinking, and, when you figure it out, you make another potal to travel back to when the portal connecting to the professor was open, and then save him

@MDHUSSAIN-my7rh 3 жыл бұрын

@@ErmisSouldatos Epic🤣

@gobbyli6118 3 жыл бұрын

Portal: Ok, I can wait for 30 seconds more

@calmingmom1196 3 жыл бұрын

You just grab all of them and make a bunch of triangles no matter what at least one of them is going to have a pure triangle then you take the rest back in the past so that way it's going to be very simple to get there and back seriously you bring all of them there's a good chance that if you just use three of them for each portal you're going to get one eventually

@witherbomb47 3 жыл бұрын

Definitely caught in a time warp

@Grapes-nk2vk 4 жыл бұрын

Step one: confirm you have green eyes Step two: ask the nodules to connect correctly so you can leave.

@AbhishekKumar-uu4uj 3 жыл бұрын

Reference please ?

@agenti4734 3 жыл бұрын

@@AbhishekKumar-uu4uj it is from one of the older riddles. The riddle consisted of people with green eyes and to escape. They needed to have green eyes but they didn't know they had green eyes

@AbhishekKumar-uu4uj 3 жыл бұрын

@@agenti4734 thank you

@rejanesalgueiro2264 3 жыл бұрын

This meme is getting really annoying

@sudoornator3000 3 жыл бұрын

Step three cover yourself in oil

@Gameknight2169 3 жыл бұрын

Of course, the hexagon is still the bestagon.

@epicbots8479 3 жыл бұрын

hexagons are the bestagons baby!! (watched that vid btw)

@bedrock30_ 3 жыл бұрын

Naturally

@AUserNobodyAskedFor 3 жыл бұрын

I watched that vid

@maartenvandijk3629 3 жыл бұрын

Bees!

@meapyboy12345 3 жыл бұрын

righty you are

@GMPStudios 5 жыл бұрын

Now I understand why there were exactly 6 infinity stones

@carastark9163 5 жыл бұрын

6 is the new 42

@JrKid-jb3vm 5 жыл бұрын

Perfectly balanced

@GMPStudios 5 жыл бұрын

@@JrKid-jb3vm but it cost Everything 🙃

@GalluZ 5 жыл бұрын

Conclusion: Thanos will win against Captain Marvel. lol xd

@lanceleynes5862 5 жыл бұрын

@ShauryaSingh-ts2oc 5 жыл бұрын

Can't I just throw the box of nodules in the portal so that the professor figures out himself ?

@aljhungwapo 5 жыл бұрын

Oooorrrrrr maybe the portal is kinda two way? If the portal isnt close yet maybe the professor can just jump back?

@kudoamv 5 жыл бұрын

The assumption contradicts the solution to the problem, you guys are good. Spotted the loophole.

@thomashaines3182 5 жыл бұрын

@@kudoamv thanks

@masonmatt2145 5 жыл бұрын

Keep in mind that the professor could be dead already when you step through, although a slim chance, making your rescue mission pointless, even if you can get through.

@maximilianopena 5 жыл бұрын

Can't just bring three modules and throw those together until colors match?

@joanne3330 3 жыл бұрын

0:14 love how I just casually watch as my boss "accidentally" steps through a time portal

@marcusscience23 2 жыл бұрын

This is the part where you just throw the 6 chrononodules through the portal for him, and don’t step through yourself.

@Tippex_Official 4 жыл бұрын

0:09 if he’s called Ramsey, I assume he rants at his workers Also, here’s the solution: 1. Bring all the nodules, 2. Make tons of 3 node triangles till you get what you want

@LocalPlagueDoc 4 жыл бұрын

1:04

@meco7956 4 жыл бұрын

@@LocalPlagueDoc never said they one portal affects others

@autumnveir1168 4 жыл бұрын

3. Say you have green eyes. 4. Ask the professor to leave. 5. If you have been questioned about his whereabouts, just reply "OZO"

@zForce4 3 жыл бұрын

Or you could just never get one and stuck in history forever Just like how I never get good teammates when solo Q for anygame

@Tippex_Official 3 жыл бұрын

@@zForce4 assuming each line has a 50% chance to be red or blue, then there is a 1/4 chance you get a working triangle. If there are, say, 100 nodes in a box, then you would get about 25 working portals. At least that’s the estimate.

@sahilhussain7328 5 жыл бұрын

How does one ACCIDENTALLY fall through a time vortex?

@abigailc8829 5 жыл бұрын

And how does one ACCIDENTALLY add deadly lasers to ants?

@axelfirekirby 5 жыл бұрын

weird al once accidentally stepped into a alternate dimension

@PrincessAshley12 5 жыл бұрын

Hot tub time machine

@theivoryguy2476 5 жыл бұрын

@@abigailc8829 How does one not know what their eye color is?

@squid_cake 5 жыл бұрын

Sain 7417 I ordered a pizza and got a time vortex instead, what's your point

@hafsa7951 5 жыл бұрын

This guy has an amazing voice

@merc6666 5 жыл бұрын

Ikr its so soothing

@MichaelAury 5 жыл бұрын

Yea he’s my favorite Ted Ed narrator. He has a very clear pronunciation and his voice has the perfect tone for educating. Not too cold and not too friendly.

@blankname6657 5 жыл бұрын

Check him out, his name is Addison Anderson.

@hafsa7951 5 жыл бұрын

Dragon Slayer thanks, I will

@minakshieco1 5 жыл бұрын

IKR

@yanagelfand4337 3 жыл бұрын

I went from the opposite and tried to find a way to AVOID same-color triangles. The fact that a hexagon is symmetric made it easier. So I tried different combinations of the two colors on the outline (there are only three). All the times I stumbled across two rays of the same color from the same vertex, I added the third line of the different color (worst case scenario). And all the times it eventually led to a triangle. With a triangle, a rectangle and a pentagon the same strategy led to "winning" (there is a way not to form a triangle), so I increased the quantity of vertexes until I found out that a hexagon doesn't work like that, so it should be the correct answer. The bonus riddle works the same way. I see that this way is less logical and more intuitive, but for me it was easier to actually see how it can play out.

@halfofabucket1346 4 жыл бұрын

"Your internship at Ramsay's physics lab has been amazing." Also me: *tries to put the apple in the square slot*

@yingo4098 3 жыл бұрын

what square slot?

@unico17324 3 жыл бұрын

What????????????????

@commanderfiendfyre4095 3 жыл бұрын

I’m sorry, what?

@limegreenelevator 4 ай бұрын

That's right, it goes in the square hole

@linali6865 5 жыл бұрын

*tells riddle* me: uh 6? *says answer is 6* me: IM SO FREAKING SMART

@starboyjadenn 5 жыл бұрын

I just said 6 cuz 3x2

@samissmart2407 5 жыл бұрын

Txc rags same but I did a little more thinking

@justin4514 5 жыл бұрын

@@starboyjadenn me too

@francischong5804 5 жыл бұрын

Omg, I am glad I have not wrote this comment yet because it was my first time solving this question successfully and getting correct.

@mylenefrancisco888 5 жыл бұрын

Lina Li Same

@capertillar4634 5 жыл бұрын

3:38 Just grab him through, you have long enough arms

@nightingalelara7519 4 жыл бұрын

Hehe

@TheFerretofEarth 4 жыл бұрын

Lmao

@user-qp3bc2up8x 4 жыл бұрын

LMAOOOOO

@captainkencel1557 4 жыл бұрын

you cant see where he is though

@thegreatmo5067 4 жыл бұрын

Rofl

@xiupingliu7343 4 жыл бұрын

Me: Wait so how many nachos does he need?

@HadesKidsGang 4 ай бұрын

get a notification. watch the video again. nice comment.

@jasondeng7677 4 жыл бұрын

1:41 now he knows where the lamb sauce went

@mepnet 4 жыл бұрын

Finally

@stormysamreen7062 5 жыл бұрын

Me: * grabs six chrono nodules * Me: * opens portal * Me: * gets splinched because there *was* a chance of the portal collapsing, no matter how few you bring * Me: Well, fml.

@danielcole3508 5 жыл бұрын

Hehe nice... splinched

@AsifIqbalR 5 жыл бұрын

@Brianna Sloves haha... Potterhead :D

@danielcole3508 5 жыл бұрын

@Brianna Sloves Me: realizes it would just be easier to just accio the guy through the portal Also me: realizes i don't have wand... cries for the next week

@danielcole3508 5 жыл бұрын

@Brianna Sloves yes but we can't apparate through it because it's a portal. You have to go through it apparation would be like walking around instantly or only parts of you going through portal.

@donyasigalesin1087 5 жыл бұрын

Mujahid Syed same

@Tombee2 5 жыл бұрын

Me: five sounds nice-No 6, 3 for 2 triangles. Ted-ed: the answer is 6 Me: yes big brain time

@yourtypicalneighborhoodkar9605 4 жыл бұрын

Annnnnd you most likely solved the bonus riddle

@lsedge7280 4 жыл бұрын

Basically same as me. I was like "50% chance of red or blue for one", 3*2 = 6. Might be six. Big brain gang.

@ssmmarble9425 3 жыл бұрын

400 like

@Berilia 3 жыл бұрын

Yeah my thought process was just "if there's a 50% chance of getting one colour and you need three of that one colour, 6 would work" I know that's almost certainly completely wrong, but I got the right answer :D

@angeliki5135 3 жыл бұрын

Actually, because of the bonus riddle and also needing to get the professor back, you'd need 12. 6 for yourself and 6 for the professor since 1 portal teleports 1 person before it disappears.

@abhishekjain3344 4 жыл бұрын

"Whats the minimum number of nodules" Me: *Take 3 and a risk also* .

@neerajnandan3519 3 жыл бұрын

I like how Ted ed says time travel riddle and just makes us learn geometry

@clockworkgamma 5 жыл бұрын

Just leave him and take credit for the time machine , its a win win

@math3000 5 жыл бұрын

Sounds good to me

@OJorEm 5 жыл бұрын

Found the psychopath lol

@saadawan5502 5 жыл бұрын

Lmao 😂😂

@mr.cup6yearsago211 5 жыл бұрын

orange man bad

@martinanastacio5040 5 жыл бұрын

no use rushing through the portal... just perfect the time machine first before rescuing the professor. don't want to get trapped in prehistoric era... no wifi, no pizza delivery.

@finris1 5 жыл бұрын

The bonus riddle: there will always be at least 2 triangles with same color sides. Take the possible colors extending from 1 nodule as in video. (1) If there are 5 or 4 blue sides (or 0 or 1 as that is just 5 or 4 red sides with the same result just with opposing colors), then there are at least 2 sets of 3 sides that will result in a portal like in the first riddle. (2) For the case of 2 or 3 blue/red sides, there will be 1 set of 3 sides that will create a portal as in the first riddle, and there will be sides between the nodules that could be either color and not create a portal. Pick a side as either blue or red (which doesn’t matter), and then fill in the remainder to try to prevent a portal. Another portal will always form no matter which initial side you pick.

@milx7210 4 жыл бұрын

Im not going to read that im just gonna assume you're correct

@TheBloodsuger150 3 жыл бұрын

Or: Start with the triangle we know forms, let’s say it’s red. We know any ‘out of triangle’ node can’t be connected to the 3 ‘triangle nodes’ with 2 red lines, because that would make a red triangle, so at least 2 of their connections to the triangle are blue. If every out of triangle node has 2 blue connections to the triangle, 2 out of triangle nodes must share at least one vertex of the triangle that they both have a blue connection to. If this is true, out of triangle nodes can’t connect to each other with blue lines, or they’d make a blue triangle with that shared node. But if all out of triangle nodes are connected with red lines, they’d make a red triangle between the three of them. So there is no solution without at least 2 triangles.

@jatarokemuri4549 3 жыл бұрын

cant we apply the argument in the video to all the points and say that by symmetry, there will always be 2 portals form, and going futher and say that at least 6 portals always form?

@ryanburkett949 2 жыл бұрын

@@jatarokemuri4549 We can't say 6, cause the triangles formed by some of the points may be ones we already counted as formed from the first point. But we can make sure of at least 2 by using one of the nodules not used in the first 4 and doing a symmetry argument.

@marcusscience23 2 жыл бұрын

Or we could just throw the 6 chrononodules through the portal (without actually stepping through it) and have the professor connect them himself. Skipped the bonus riddle, only need 1 portal to work.

@porkbork3500 4 жыл бұрын

To maximise the chance of survival, you might want to bring 5 though, depending on the chance of the portal collapsing vs the chance of the nodules giving a dead arrangement

@PragmaticAntithesis 11 ай бұрын

Yep, the chance of 5 failing is only 12/1024

@Thomas14717 8 ай бұрын

Explain please?

@AmateurStorytime 4 күн бұрын

@@Thomas14717There's only a 1% chance of failure to make a triangle with only five nodules, and since each additional nodule increases the likelihood of the portal collapsing while you're going through it, you're less likely to have the portal collapse on you if you only bring five nodules instead of six.

@mansidugar6781 4 жыл бұрын

Ted-Ed: " Can you-" Me : " NO!" Ted-Ed : " But- " Me : " Well I'm gonna see the video anyway "

@lukasnovella9001 5 жыл бұрын

2:15 I thought we were traveling through time not summoning Satan

@BytezBich 5 жыл бұрын

Lol

@justinharris3630 5 жыл бұрын

@titaenic 5 жыл бұрын

😂

@MADKapo 5 жыл бұрын

We're gonna resurect our mom, Al.

@godyeeter7817 5 жыл бұрын

lol

@FFjean 5 жыл бұрын

I randomly guessed that 6 is the answer so that means im a legit scientist

@tristanreyes8590 5 жыл бұрын

Me too

@ayooshiyer8621 5 жыл бұрын

I am the sixth liker

@oxen_nyx 5 жыл бұрын

42 :V Same XD

@merc6666 5 жыл бұрын

Lol same i was like um 3 x 2 is 6 so 6 is the answer....?

@thatfacewhenyoucheatedandg3957 5 жыл бұрын

My favourite kookies are suga kookies. THAT IS WHAT I Did XD and also HI ARMY

@cosmicbrambleclawv2 3 жыл бұрын

I like how the return portal just conveniently takes us back to the right time xD

@sonny8085 4 жыл бұрын

I think the lesson here is that if you have an active time machine turned on in your lab, you should be more careful while wandering around.

@dailytofu7060 5 жыл бұрын

Can you solve th- Me: no but I'll watch

@ba.nguyen 4 жыл бұрын

I solved it :D

@anton-exe 4 жыл бұрын

I'm kinda smart but I always just like to see how to solve it.

@CactusJ7 3 жыл бұрын

Hahahahaha, yeah😉

@JBCIssac 3 жыл бұрын

When people describe you as smart, but you can’t solve the TedEd riddles...

@jongoagr9277 3 жыл бұрын

Me and you,we have a lot in common.

@shettysrjan30 5 жыл бұрын

00:15 =professor has fallen into a time hole and i have to go in through the same time hole to save him 03:52= A Given portal can transport ONE PERSON before it closes

@jasondeng7677 4 жыл бұрын

bruhhhh

@daerdevvyl4314 4 жыл бұрын

Srjan Shetty In the BONUS QUESTION, not the MAIN QUESTION. Pay attention.

@lilchristuten7568 4 жыл бұрын

00.17 you have just a minute to go through the portal. Explanation takes more than a minute.

@medexamtoolscom 4 жыл бұрын

Yeah really, you should have just thrown the 6 modules through the hole and stayed in the future yourself.

@daerdevvyl4314 4 жыл бұрын

lil chris tuten But the character doesn’t need to explain it. Are you telling me that you can’t figure something out faster than you can explain it to someone? Because I definitely can.

@EnderIzzy124 3 жыл бұрын

Other idea, throw 6 chrono nodules through instead of you going through yourself. Presumably, the lab would have some sort of protocol for this sort of thing on the offchance of an accidental exposure, and assuming the portal always exits at the same place, all the doctor would have to do is wait for his return trip to arrive.

@SpellProgrammer 9 ай бұрын

What happens if the professor walks away? We already know he's got a tendency to wander without looking where he's going, and he was reading a paper when the accident happened. Who's to say that he didn't realize what happened and just kept walking? Besides, the nodules are very small, and could be crushed by large dino feet very easily. It's not a bad idea, but there's too many things that could go wrong. Better to be there to mitigate as many problems as you can.

@leninsamson3847 Жыл бұрын

with the bonus riddle just bring 12 nodules and leave the other 6 for yourself or the professor, depending on who goes first

@Justifier925 Жыл бұрын

The argument can always be that you were too late and your rushed decision came to this

@channyt8818 5 жыл бұрын

*When you finally got a riddle right even though you guessed*

@violet8294 4 жыл бұрын

lmao same

@minipinkcrewmate9556 4 жыл бұрын

Yea

@NafeeDoesStuff 4 жыл бұрын

You feel so big brained

@mith_jain_here 4 жыл бұрын

*me tooo*

@thegreatmo5067 4 жыл бұрын

lol 😂

@ShiaTheBunnyGirl 5 жыл бұрын

Answer: bring 12 nodules and use 6 per portal so both can escape time Easy peasy Lemon sandwich

@dam8944 4 жыл бұрын

Pokefan Alolagaming but u only brought with u 6 or u could just go through at the same time

@nowonmetube 4 жыл бұрын

Lemon sandwich??? I've never heard of that!

@LumaLinaAndRosa 4 жыл бұрын

Me too

@spoonythegamer21 4 жыл бұрын

LegendAdam09 if they brung 2 portals then they both go in each with 6 nodules giving them the same chance

@kewmiemie1091 4 жыл бұрын

@@spoonythegamer21 brung I wonder what brung means

@daveteves 4 жыл бұрын

Thanks TedEd! Now I know how much modules I need when this problem arises.

@louisedriscoll3227 Жыл бұрын

Ted ed:your boss is trapped in time Me:🎵arms of an angel🎵

@farisakmal2722 5 жыл бұрын

The nodules are fkin *raw* ! Okay wrong Ramsay

@kln.b5631 5 жыл бұрын

WHEREZ THE LAMB SAAAAAAUUUUUCEEEEEEE !???

@farisakmal2722 5 жыл бұрын

Thanks for all the likes😁

@jessezong2507 5 жыл бұрын

WHERES THE LAMB SAUCE

@owlesent 5 жыл бұрын

COME ON SUSAN

@PrincessAshley12 5 жыл бұрын

Nino would've made sure it wasn't raw, and have pictures to prove it.

@gamerx7053 5 жыл бұрын

OMG I can’t believe I finally got one of these riddles right. This was a good one!

@shanematthews1985 5 жыл бұрын

I know right, this one was actually kind of obvious though i guess? That or we're both just really geared towards understanding this sort of problem >.

@XCM666 5 жыл бұрын

I hate to be *that* guy, but still: Maybe you both lucked out, as the range of sensible options is pretty small here. If you didn't solve it the way the video explains, then make that a probably. So how did you come up with 6 as your solution? I got it wrong. I intuitively thought the answer was 5 (as 3 out of 5 lines have to be the same color). I had the right idea, but didn't think it through (you require a sixth nodule to take advantage of this circumstance).

@shanematthews1985 5 жыл бұрын

My instinct was that 6 would essentially give you a 6 pointed star, given that there were only 2 possible colour combinations 6 seemed like the mathematical choice given 2x3 and the layout giving you multiple points of contact

@t_kon 5 жыл бұрын

@@XCM666 by noticing that you'll need at least 3 edge of the same color to know it's possible (this one...is rather instict), then by php you'll need a minimum 5 edges connected to each vertex. Since it's a complete graph, hence n = 6 is the answer

@kokorondeficit 5 жыл бұрын

GamerX705 wait so you didn’t solve the robo ants riddle it had the most obvious answer you dont even need to guess it

@phoenixarian8513 Ай бұрын

I've read this question but in a different description. It's in a Chinese encyclopedia and it says: "You are the restaurant manager and you need to let a group of customers to seat. All of them has got strong emotions either good or bad against each other. You won't want 3 of them with the same emotions in between to sit at the same table or they might make trouble. What is the maximum number of customers to seat at each table?" And the answer is 5. With 6 there is a sure triangle.

@dokchampa9324 11 күн бұрын

First Ted ed riddle I solved without pausing the video, so proud of myself

@AN-ou6qu 5 жыл бұрын

0:20 YO this scene is GORGEOUS!

@Gallarday 2 жыл бұрын

Oh wow it is Reminds me of a game.

@Xzcouter 5 жыл бұрын

Hey! I personally love this video cause I am a undergraduate math student and currently am basing off my research on this exact field of math (Ramsey Numbers of Graphs)!

@t_kon 5 жыл бұрын

I think it's generally known as coloring problems

@daniele.parentmradamgamera2500 5 жыл бұрын

Xzcouter Sukaiti that’s cool

@whatisthis2809 4 жыл бұрын

Take a bunch and calculate when you get there, bring the extra back.

@anonymus3219 3 жыл бұрын

I was able to solve this because I had successfully solved the famous "what's the minimum number of socks u need to take out a drawer at random to make a pair if the drawer contains an equal amount of blue and red socks"

@ogeecheelime8868 5 жыл бұрын

Why are you scrolling through comments? We both know you should be studying.

@cristianlicea6350 5 жыл бұрын

😭

@waqqas6799 5 жыл бұрын

Im at school rn lol

@_bum_bunny_ 5 жыл бұрын

Stooopp, I have two essays I have to do that I'm trying not to think about

@hecko-yes 5 жыл бұрын

i _am_ studying

@sketchyskies8531 5 жыл бұрын

At school (lunch) rn

@destux 5 жыл бұрын

Never though Gordon Ramsay was a time traveler

@NA-ue1tv 5 жыл бұрын

His dishes even satisfied them for the stone age.

@mikostubborn 5 жыл бұрын

Been looking for this comment lol

@SreyaSanghai 5 жыл бұрын

His first name and last name, both contain six letters..

@destux 5 жыл бұрын

@@SreyaSanghai Hey Ted Ed I found a much quicker solution over here

@ceceoneill2517 4 жыл бұрын

Me going through probability this year: finally knows the answer to a ted ed riddle

@billnoonan5928 3 жыл бұрын

“You have one minute to go through the portal” Me calculating wether or not I can call ted Ed in that amount of time

@Silvergrooves42 5 жыл бұрын

I'm super happy that my super quick solution turned out to be the correct one. I reasoned that if you had one stone as origin point and had random lines coming out, you needed to add enough stones for there to be 3 of a colour, since even if they didn't get the original color, they would still make a triangle. 6 it was

@chinareds54 5 жыл бұрын

As a theoretical math problem it works, but in practice you can just bring the whole box and activate one at a time until you generate the portal. It may happen by chance with 3, 4, or 5 nodules, and if it does activate with a lower number then it would be safer than activating 6.

@elementgermanium 9 ай бұрын

Fun fact: Ramsey theory is also the source of Graham’s number! The original question was similar to this, but instead of triangles, the goal was a square/rectangle with an X through it, and the question wasn’t the number of nodes, but the number of dimensions a hypercube would need to have enough nodes. At the time, the answer was “somewhere between 6 and Graham’s number.” Which is basically the least precise statement that’s ever been seriously made. Nowadays, we’ve got a better idea: it’s somewhere between 13 and (2^2^2^2…) with (2^2^2^2… with 5138 2s) 2s. Which seems like a lot but compared to Graham’s number it’s basically zero.

@subagaming2075 4 жыл бұрын

My first riddle i ever solved on this channel.

@sssssarthak 5 жыл бұрын

No, but still i'll watch and not understand the solution too.

@msy6864 5 жыл бұрын

Yea I can't think of an answer

@nikhilgarg9618 Жыл бұрын

Step 1: Confirm you have green eyes. Step 2: Throw a replica of the egg from 100th floor. Step 3: Ask, " If i asked you whether 2+2=4, would you say ozo?" Step 4: Divide the triangle into acute angles triangles with 7 cuts. Step 5: Give the box of pearls to sea monsters. Step 6: Cheat death by playing snakes and ladders. Step 7: Count the no of birthday candles. Step 8: Say, "You will release my brother" to save your bro and the creatures of paradox. Step 9: Say the name of the 5th house and the founder. Step 10: Press the button to save you and your friends from the 11 dimensions.

@misterbrick4276 2 жыл бұрын

3:52 then how did we go through the same portal as the professor to get here

@BobMcCoy 5 жыл бұрын

*It took me some **_time_** to solve this riddle*

@av.keshavshastry7785 5 жыл бұрын

True, it took me an hour but I did solve it!

@av.keshavshastry7785 5 жыл бұрын

Wow, i went through each case to solve, elegant solution!

@gavinrand8368 5 жыл бұрын

_Bob McCoy *lisa Guerrero would confront the time* I spelled that wrong didn’t I

@faznapkin1631 5 жыл бұрын

no *get out* 😂

@ninaelmoyan3478 5 жыл бұрын

Bud Dum CRASH

@Mr6Sinner 5 жыл бұрын

He went through the portal to figure out where the lamb sauce is.

@ecom6ao 5 жыл бұрын

@zissler1 5 жыл бұрын

Woosh

@getoinked2818 5 жыл бұрын

Ohhh That Explains It

@Pleaselikeandsubscribe1 Жыл бұрын

Imagine using all the cryo-nodules to make a time travel machine😂😂😂

@garygrim9235 3 жыл бұрын

TED-Ed: How can you help the doctor? Me: halfway through raiding the lab

@fotinipapacharalampous5596 5 жыл бұрын

Can you solve the time travel riddle? Off course I can't, but let's give it a try!

@alex0125tw 5 жыл бұрын

I love TedEd riddles

@BytezBich 5 жыл бұрын

@Unbreakable Patches what

@rebeccavecchio4275 4 жыл бұрын

Me: Ugghhhh 6? Ted Ed: The answer is 6 Me: Lol this is the first riddle I got right.

@loganwingenbach3834 2 жыл бұрын

i would just grab as many as possible and then use them three at a time until a portal opened. this does create the chance of not getting a portal but using more than the minimum increases the chances that it immediately kills you when you try to use it.

@MatthewSmith-wx9wy 5 жыл бұрын

0:12 Until, that is, he called you a donkey and said the meat is undercooked!

@williamdunhan341 5 жыл бұрын

😂

@tacothealien9805 4 жыл бұрын

where’s the lamb sau- THE ANSWER

@davidwallerstein3113 5 жыл бұрын

Ahaha I just chose 6 because it's two triangles together surprised i was correct 😂

@pixellover2795 5 жыл бұрын

we all did

@coolsauce7771 5 жыл бұрын

Same

@TheThiccestChungus 5 жыл бұрын

exactly like a cat

@mmrow1634 5 жыл бұрын

This is not a bad way to get an upper bound on the minimum for any kind or combination of polygons ("portals") formed by nodes ("chrono nodules") either. It's just a coincidence that for two triangles, it's also the lower bound and an achievable number. However for greater numbers of polygons or greater sizes of polygon, it quickly becomes extremely suboptimal, and hence Ramsey theory (amongst other areas of graph theory) that try to give better bounds or exact results. Or at least show that you can do it at all, is often as far as we get sometimes, too

@getpriyanka 3 жыл бұрын

*Don't you guys hate it when your professor accidentally falls into a time vortex which gets more instability with the presence of more time nodules. Luckily, Ted here will help you solve this the next time it happens*

@nazneenshereef7522 4 жыл бұрын

How many nodules will u take? Me: 6 cuz we can make two triangles with it (lol) The only possible answer is 6 Me jumping around screaming: MOM get in here!!!! Ur daughter is smart😎!!!

@bobberry1463 5 жыл бұрын

I guess 6 randomly does that still count

@taakotuesdays 5 жыл бұрын

Me too do we get prizes

@ibbysajid167 5 жыл бұрын

bob berry no

@reasatprottoy7488 5 жыл бұрын

Make this a series called Ted-dle

@jaysonirvingalcantara3949 5 жыл бұрын

Or call it T series

@propularguy 5 жыл бұрын

I can only do the tissue thing haha lame jk

@matildasinclair7012 Жыл бұрын

There are bigger chances of me figuring out how to time travel than solving a Ted Ed riddle

@PrunselClone 4 жыл бұрын

Me: *grabs entire box* Also Me: *gets back*

@neve6759 5 жыл бұрын

I solved it!!! I’m jumping up and down in excitement. How I solved it: Step 1: take a whiteboard and 3 different color markers Step 2: draw a number of nodules and try to make it *not* work Step 3: if it doesn’t work, increase the number of nodules by 1 This was actually a fairly simple riddle, but I’m still happy with myself. Lol.

@NurioMarayana 4 жыл бұрын

That's a terribly inefficient method, and I doubt you actually did this. By the time you reached the answer, you'll have drawn 2^(3) + 2^(6) + 2^(10) + 2^(15) = 8 + 64 + 1024 + 32768 = 33864 different diagrams. Probably a bit less, because you'll more quickly find an arrangement that doesn't have a monocolor triangle in the 3, 4 and even 5 nodule setup. But for the 6 nodule setup, you'll need to go through at least all the 32768 diagrams to rule all of them out. That's 15 lines per diagram and 6 nodules per diagram as well, so that's 15 * 32768 = 491520 lines and 6 * 32768 = 196608 nodules drawn. Even if you draw like 5 nodules/lines per second (that's inhumanly fast), that still takes you 688128 / 5 = 137625.6 seconds. That's 38 hours, 13 minutes, 45 seconds and 600 milliseconds. And this even assumes you are inhumanly fast with drawing, took no time to think between drawings, took no time to double-check, made absolutely zero mistakes, found a non-monocolor setup basically instantly in the 3, 4 and 5 nodule setup, took no time to rest at all for anything, took no time to erase anything on the whiteboard, and have an almost infinitely large whiteboard. And you're saying you did all that?

@viperwolf1272 5 жыл бұрын

By the time i finished watching this video the window would have already closed leaving my professor stuck in history :D

@Pokestar732 Жыл бұрын

You left me on a cliffhanger,man....

@cru3her608 3 жыл бұрын

"You only have one minute to go in the portal" just bring the whole box and ask the professor how many chrono modules you need to use.

@SwordSprite 3 жыл бұрын

they said you need to bring as few as possible

@bitrr3482 3 жыл бұрын

@@SwordSprite but you aren't going to be using all of them

@SwordSprite 3 жыл бұрын

@@bitrr3482 no but the more you BRING the higher the chance there being a problem

@vincenzocontento6300 5 жыл бұрын

I thought about this a little differently, not sure if my thought process is correct, but it gave me the same answer. Odds of getting all red or all blue triangle with 3 nodules is 1/8 (0.5x0.5x0.5) and because extra nodules create colours mutually exclusively, all you have to do is create 8 triangles with the least number of nodules (bc 1/8 x 8 = 100%). So I was just thinking of shapes and thought octahedron has 8 triangles and just 6 nodules. Could’ve been luck, I didn’t put much thought into the shape, just first one that came to mind.

@urielcastaneda761 5 жыл бұрын

Or just bring all of them and keep throwing them until they work

@ratfoot6490 5 жыл бұрын

The more you bring the higher chance they have of collapsing while you are going through then.

@yagentblueberry1144 5 жыл бұрын

YOu can't win the lotteries if you don't buy the lotteries And the collapsing only happens when you throw them. Or go through them. so you argument is invalid.

@jasondeng7677 4 жыл бұрын

...

@absolutelynot.3739 10 ай бұрын

Alternative: bring as many as you can and then calculate how many you need to use once youre through

@brandonhenderson6356 2 жыл бұрын

Music explanation: calm peaceful Timer: sounds like the suffer of a wildfire

@aylacastolo5843 5 жыл бұрын

Just throw the whole damn box in and make the professor do the damn work of going back

@0Sildar0 5 жыл бұрын

I was hoping for some kind of paradox riddle :(

@perison4611 5 жыл бұрын

Is there such thing??

@rolliepollie941 5 жыл бұрын

You just predicted the future!!! kzfaq.info/get/bejne/o7llmKiZsbSZZ6c.html Are you a time traveler?

@getoinked2818 5 жыл бұрын

Here kzfaq.info/get/bejne/o7llmKiZsbSZZ6c.html

@mouthlesshater 4 жыл бұрын

Step 1: Confirm you and the professor have green eyes Step 2: Tell the professor to ask to leave without portals Step 3: Ask to leave without portals

@cheezychicken6243 4 жыл бұрын

Step 1: Tell the professor he has green eyes Step 2: Tell the portal to let him leave

@akshatshrivastava5947 5 жыл бұрын

Thanks a lot for making riddle videos more often ❤❤

@matrixphijr 5 жыл бұрын

"What's the minimum number of nodules you'll need to bring to guarantee you create a fully red or blue triangle?" Me: Well, Prof., it was nice knowin' ya.

@insert_name_here936 4 жыл бұрын

How to solve: Step 1: Confirm that both you and the professor have green eyes. Step 2: Ask the dimension to leave.

@The360MlgNoscoper 4 жыл бұрын

it's time not dimansion that seperates them

@a.iraven3922 2 жыл бұрын

I solved almost every riddle on your channel easily and all it took was time and I figured it out

@elephantarmy2938 5 жыл бұрын

Quickly the portal is about to close Gives four days to figure it out

@crispyein8601 5 жыл бұрын

0:00 the way I type is phenomenal.

@FrogMan-cw2jr 2 жыл бұрын

Who else thinks the scream at 1:28 kinda sounds like toad from super mario

@SuperPassek 10 ай бұрын

Solution to Bonus riddle. - We already know that there is at least one same-color triangle. Suppose the triangle is compose of nodes A, B and C, and ABC is a red triangle, and the other three nodes are D, E and F. - Suppose there are no other same-color triangle, to show contradiction. - As there are 5 edges connected to D, with the same logic, we can get a same-color triangle. As there can be no other same-color triangles then ABC, this same-color triangle we get from D should be ABC. It means that DA, DB, DC should be blue. - For the same reason, EA, EB and EC, and FA, FB and FC are all blue. - If any of DE, DF or EF is blue, we get a blue triangle, so DE, DF, EF should be all red. But we get a red triangle DEF in that case. So we showed a contradiction.

@gravajaumbros 9 ай бұрын

Looking through the comments for one that explained the answer to the bonus riddle in a way I could easily picture. This was it. I know other people had already explained, but not in a way that that I could follow, so thank you for this!

@RawAustin 5 жыл бұрын

Never heard of Ramsey Theory before this, but I am somewhat familiar with basic Graph Theory. Looking at it one way, considering all the red edges yields a graph, while the blue edges form its complement. Unite them and you have a fully-connected graph, which forms the problem statement presented here. Coming to a similar conclusion to the video, for any given graph with 6 nodes, either the graph or it's complement will always contain a 3-node cycle, aka a triangle. Came to that result after a bit of brute-forcing some permutations, but hey! I got _something_ out of my Math lectures.

@Nopenopenope412 Жыл бұрын

neat

@JadeyCatgirl99 5 жыл бұрын

You bring a lot of them but only use them one at a time until a portal opens. You could get lucky and only have to activate as few as three.

@user-tw4bf3ui8f 3 жыл бұрын

Ted-Ed: Bring 6 nodules Me an Intellectual: I will bring the whole box

@abigailslade3824 4 жыл бұрын

You could do it with 5 instead of creating one pattern you separate each nodule down to its colour so if it is blue use it on your left if it’s red on your right the 5th will be either red or blue and will finish one of the triangles.