The Dime Dilemma! - How?

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[@btter710]

I just have to say, I really appreciate how humble u are! U always say, "my first attempt" instead of automatically thinking u are gonna solve it. Also, that hydrophobic maze was really neat!

[@dirtydishes2148]

Good point about the "finish in x amount of time" comments, I agree. Also a cool idea for a maze.

[@jblesser]

Thank you for having a major influence in getting me into this crazy and fascinating hobby. Much appreciated

[@matildacarlstedt]

Big like for the hydrophobic lesson 👍

[@darriuschambersdc]

I love how not only do you solve the puzzles but you break it down in simple terms (I.e. breaking out your notebook, drawing diagrams, explain complex words, etc)

[@SkyfallLodge]

"My solution is better." Love it!

[@TheFallen092]

im an engineer graduate and that hydrophobic surface explaination is perfect if u replace (surface tension ) with (porosity) because surface tension is a water property while porosity is a surface property. good explaination nontheless and keep up the high quality videos as per usual

[@Silverhorse777]

What exactly _porosity_ (BTW, is it not a surface property, it's a material property) has to do with hydrophobic properties? It has zero relation to this. His explanation was actually correct, there are three phases of matter (gas - solid - liquid) which comes into contact and this effect basically takes place when surface tensions between any two of those in equilibrium are related in a certain way. If a solid-liquid and solid-air surface tension coefficients are equal - which means that the forces and energies per surface unit on the borders between those phases are equal - then the droplet will be a perfect half-sphere (90 degree angle). It can be interpreted as the solid "sees no difference in what to stick to" - air or liquid. If a solid-liquid and air-liquid coefficients will be equal then it is an absolutely hydrophobic surface - 180 degree angle with almost zero surface betweem solid and liquid, the droplet will want to be a perfect sphere, minus gravitational distortion. There will be almost (because it is a normally unachievable extreme case) no difference in energy per surface unit between those phases related to liquid, which basically means that the liquid "sees no difference in what to stick to" - air or solid. Both coefficients are equally insanely high in this case related to the third air-solid coefficient, which is low, and in turn, this means that the solid "wants to stick to air but not to liquid", which results in mentioned almost zero solid-liquid surface, shrank by surface tension forces with those insanely high relative coefficients. And also, in reverse, you can *make* the surface of solid behave like this by limiting the surface area between solid and liquid artificially - which is actually how lotus flowers works, their surface has nanoscale needle-like crystal structures which "support" the water droplets on their tips and prevent them from sticking to the main surface area of the leaves. Well, I guess you can already see *why* it was mentioned as complicated by Mr. Puzzle)

[@risa122276]

He mentioned that the maze has a waxy hydrophobic surface…Hydrophobic materials have almost all, or perfectly, neutral covalent bonds. Water is a polar covalent solvent so it forms intermolecular bonds (like hydrogen bonds, or van del waals forces) with almost any material with ionic or polar covalent bonds. Water is also called the universal solvent. So the surface of the maze must be covered in a material made of perfectly neutral covalent bonds creating a surface to which the water molecules could form no attraction other than to themselves (hydrogen bonds) which give you cohesion/surface tension on more area of the droplet forming a near perfect sphere which has the lowest surface area to volume ratio.

[@Suinsap]

Great video as always! Wouldn't it be a good idea if the central circle of the hydrophobic maze was non-hydrophobic? Once the maze is solved the drop would splash (proving it to be just water) and maybe drain through some holes...?

[@Dargonhuman]

I think I see why your solution works better than the "official" one. The freeplay between 9/7 and 9/8 is just barely enough to squeeze either 1 or 2 in either gap, but since 7 is ever so slightly smaller than 8, the ever so slightly larger 2 fits more comfortably between 9/7 than 9/8. Since 1 is so small it could, as you so capably demonstrated throughout the solve, fit in the gap between nearly any of the larger pieces so it doesn't matter which side of 9 it goes, it will have plenty of freeplay either way.

[@Mr.Puzzle]

Tha ks for the analysis! 😁

[@michaellombardi3638]

I really appreciate your comments at the beginning about time limits. My wife and I do escape room board games together like Exit and Unlock, and they usually come with a time limit of a couple hours that we ignore. We are both very smart and good at these puzzles and yet they tend to take about twice as long as the time limit. I figure they expect that once you've been stuck for a few minutes, you will look up the solution, but they are so much more fun when you actually spend the time to puzzle them out!

[@andrewgarner2323]

Anytime someone talks about how smart they are, they really aren't that smart at all.

[@michaellombardi3638]

@@andrewgarner2323 And anytime someone makes a generalization that broad, they are wrong. Book smart wise, I have a very strong scholarly background, so I could probably objectively be called smart. However, book smart only matters so much in this context so I probably should have used a word other than "smart" in my original comment, as it wasn't quite the right nuance. So maybe my wording wasn't quite smart there :P I really meant more that my wife and I come from a strong background in solving puzzles.

[@ivanmodesto7947]

If you place a straight line through the center to connect the edges of the frame (any direction) you see that the sum of number on that line is 23. If we assume the numbers on the circles are a sign of proportionality then you can easily solve this after putting 10 in the center (and number 1 and 2 you just insert them at the end).

[@anthonycannet1305]

Is this before or after he solves it, because in the starting configuration with 6 in the center, 4+6+10 is only 20, not 23

[@ivanmodesto7947]

@@anthonycannet1305 after. The configuration at the begining before you put the dime in is just a random configuration. When you use 23 as the sum of the line through the center you cover the most of the free spaces between the circles on that line. If you use 20 like in the begining, or even 21 you will see that the free space between the circles is much larger, but not enough large to fit the smallest piece. I was just looking if I can find some pattern based on the solution that can be mathematicaly explainded and make sense.

[@johncoops6897]

@@ivanmodesto7947 - Your proposed idea of adding up to 23 doesn't work for the 1, 2 or 3. Also it would mean that the 3 and 4 would need to be transposed.

[@LockPickingCuber]

Great video, as always! I love how good-humoured you always are, no matter how frustrating the puzzle! This one didn't seem too hard for you, though.

[@kurapika1827]

This puzzle is amazing! I might just get it for my little brother. He loves puzzles

[@superhunk1989]

Your videos are always quite soothing and interesting.

[@briank8136]

I had a sealed maze as a youngster way back in the sixtys. It had mercury for the ball.

[@tg4941]

Aah the good old days. It's a wonder we still have hair and teeth. !

[@robertlozyniak3661]

I was just telling someone today about how, in the mid-1990's, I had a homemade mercury barometer. Try getting mercury now!

[@johncoops6897]

@@robertlozyniak3661 - you can get it from the old school blood pressure pump-up cuff thingies. They come in a folding metal box, which when opened contain the glass column with quite a large Mercury reservoir. Great for innovative cocktail drinks!

[@bamaqueen2086]

That was very interesting. I love watching your channel.

[@DomPuzzles]

Cool maze puzzle and interesting packing puzzle.

[@mexemsu.g.d.975]

It seems I always learn something new watching your channel.😂. Thanx for the hydrophobic explanation ! Very good sir. 👍👍🤔

[@kenhaley4]

I totally agree with your comments about the time limit.

[@cara9648]

I always enjoy your videos 😊

[@Mr.Puzzle]

Thanks!

[@kenbreeding1857]

I love your videos and like you I’m not a fan of time limits. Keep up the great content!

[@groowanderer]

Mr puzzle a rebel. No to the time limit, no to the hints!

[@derekvirley6708]

Awesome puzzle and i like you to describe in a future video how to solve the rubik's cube I've never been able to solve it.

[@RyanDr]

I mean the first strike for that puzzle was when they didn’t make the dime number 10.

[@adipy8912]

5:59 Knowing the solution cannot be revered. I wouldn't say that it's true. It's been four years since I watched puzzles like Tricky Dick. When you did it I then knew how to solve it the next days. But now it's been so long that I've completely forgotten how to solve it.

[@Mr.Puzzle]

Same here 😁

[@adipy8912]

Still love your videos

[@gernotg8480]

@@Mr.Puzzle bitte helfen Sie mir

[@camerondrew9402]

That editing break at 5:40 is a bit sus. Is that when you switch out the red ball for the water drop?

[@notahotshot]

Nope, it's just an editing break to mess with the week minded.

[@JRyan2K]

"My solution fits better than the intended..." Hahaha Thumbsup!

[@bluerizlagirl]

You may not know this, but way back in the 1980s, there was a maze puzzle available from toy shops, aimed at kids, made of plastic and containing a blob of mercury! Wasn't that a bit dangerous? It was only dangerous if you broke it ..... Using a special water-repellent surface coating that makes water behave similarly probably is a lot safer, and certainly no less fun than the classic mercury maze -- probably even slightly more interesting, if anything, for knowing that it's just a blob of water with some pigment that you put in it yourself .....

[@Mr.Puzzle]

Yes I know that. Never saw it in reality though. Mercury is definitely nothing that should be in a child's room.

[@tempestfury8324]

Yes, I had one of those maze games! It was called "Quicksilver". But it was fully contained and think about: we used to have thermometers filled with mercury as well as thermostats and other devices around the house.

[@Zoso14892]

I lost all respect for that puzzle as soon as you showed the message. Is that any better than the ad's on mobile games saying "99% of players can't pass this level"? By the time you see the message you already own the puzzle so why bother? I loved the hydrophobic maze though, that is so cool! Such a simple object but fun to see it in action :)

[@stoneseabolt]

I got one of these hydrophobic wooden mazes in a box from Chris Ramsay, and thought it was super cool! I'd love to see you and Chris puzzling together sometime! He does some seriously wild sequential puzzles that I bet you'd lovr and I think it would be cool to see you two work together. You'd be amazed by his puzzle collection as well. Too bad he's in Canada and you're in Germany. :(

[@andrewgarner2323]

Do you seriously think that they don't know each other? You explained Chris to him like he's never seen him. They are friends.

[@meghan6734]

Well I have to subscribe, I learned about the angles to determine if a liquid is hydrophobic

[@yumivt]

what would be cool is if the center of the puzzle was not hydrophobic and it just turned into a puddle when it hit the center. that would be super cool!

[@Mr.Puzzle]

😅

[@sapelesteve]

Nice solve Mr. Puzzle! Not as easy as it looks.... 👍😉

[@eric_in_florida]

Leave it to Mr. Puzzle to find a better solution than the one provided.

[@ironmike-oi9zr]

i cpuld realy go for some potato salad right about now

[@culwin]

Minute Physics with Mr. Puzzle

[@supercat765]

I say there are at least 4 solutions, depending on what is considered a unique solution there are the two, the official one and the one found in the vid. But one can also flip those solutions into a mirrored version. making two more debate-able solutions

[@mkilptrick]

Are the diameters of the pieces related to their numbers? That is, is 10 a 10mm piece and 9 a 9mm piece?

[@Mr.Puzzle]

Yes, each piece is the surface area increased by the surface of piece #1. Forgot to mention that.

[@e-ironmanmarsden754]

At 7:42 I was screaming to swap the 7 and the 8. I think that would create enough gap for the 2 to fit between the 6 and 9 or 9 and the now 7. I could be wrong, but check it out and tell me what you think. How many solutions do you think there is?

[@Mr.Puzzle]

I think based on the mathematical solution there is probably only one. Since the puzzle has some free play to make it possible to assemble there might be a few more. At least two as I saw.

[@kandihinshaw1870]

You have showed that maze puzzle on the channel before. On your KZbin channel before. It's been awhile but she showed it not too long ago.

[@Dargonhuman]

I thought I remembered it from a previous video too, or at least one very similar to it.

[@hendrikhardeman9832]

*she* showed it ?

[@kareno8634]

NICE! Thanks. "Water Maze" Was Cool too. tho did i see correctly - only half was used. =\ if so, that's disappointing.

[@zeokin9531]

I think you prefer physical puzzles cause you get a commission from the sales but how would you feel about every once in awhile doing a puzzle from a video game.even just a short one would be cool for something different

[@Mr.Puzzle]

This has nothing to do with commissions. I just prefer the good old way to handle a puzzle instead of sliding my finger over a touchscreen. 😉

[@drew8148]

No room for number 2!

[@zackeryfisher8440]

Didn't you do one like this a little bit ago same concept

[@vsm1456]

1:59 what's that "mau" in the background? a cat? :D

[@1.4142]

NightHawkInLight has a video about how to build a hydrophobic water maze.

[@AproposDare]

Why isn't there an app for puzzles like this? I can't afford all these wooden puzzles.

[@letsescape8513]

I guess they are just not going to be as entertaining as :|

[@kateortiz3813]

Since time is relevant to the observer I just skipped ahead and you solved in a lot less than five minutes so just know you beat the time somewhere.

[@Mr.Puzzle]

😂👍

[@bengosling4606]

How's the world's youngest puzzle master?

[@feosp]

If you take one number and add the number opposite to the 10 you get 13. So this is basically the idea for arranging the first numbers. To get as close to the diameter as possible.

[@kandihinshaw1870]

Hello Hello Hello Mr. Puzzle how are you doing today?

[@mattiacamnasio1153]

I cannot bear the single longer nail....

[@PMX]

At least 4 solutions since the puzzle is symmetric

[@wojo9732]

START AT 6:00

[@scienceandmatter8739]

Tribvtes FROM Germany Europe

[@nat2r]

Who is that angry downvoter and what went wrong in his life? Edit: found him

[@newolku]

Depression

[@9262XYZ]

Not everybody likes what you like. Get over it. You're raging over 4 thumbs down. And you only wrote that to get thumbs up fir your comment. Hate to break it to you but the thumbs up/down are worthless.

[@maureen14]

They numbered the dime number #3 for a reason. I would put that in third...Also you lost your microphone during this last puzzle.

[@notahotshot]

"They numbered the dime #3 for a reason" Yes, because from smallest to largest it is sized bigger than #2 and smaller than #4.

[@rayfinkle9369]

Who... does... Number 2... work for. Sorry. I'll show myself out.

[@terryv]

Some well-intended language help: In English, the second syllable in the word "surface", though spelled "f-a-c-e", is pronounced "fiss" - not "face".

[@johncoops6897]

Nope, not in English... the word is certainly not pronounced "SURF-ACE", but it's more close to SIR-FACE than SUR-FISS. Since it's blended together and said quickly, the result is more like "SUR-FUSS". kzbin.info/www/bejne/mHTHioyIe6-qqdE It relates to a plane or FACE (of an object) hence why it uses that word "face".

[@terryv]

@@johncoops6897 - You confuse spelling with pronunciation. Do as you please; I’ve moved on.

[@mkilptrick]

I did the first puzzle just by starting at the finish and going back to the start with my eyes in less than 30 seconds.

[@johncoops6897]

Wow, AMAZING. we will all start a collection and buy your the biggest trophy ever awarded to anybody on the internet. You must be so proud. Did you tell your friends and family? Did you create a KZbin video of your celebrations? Did you build a podium, so that you could stand right on the top, on the Number One position? Truly, I cannot believe you grace us with your presence, oh great one! We bow to you and your elite awesomeness!

[@catvoice5336]

I think I’m stupid 😀

[@WumbologyTest]

Why didn’t they make number 10 the actual dime what a joke

[@Dargonhuman]

Because the numbers are relevant to their diameters apparently.

[@mariusmustermann4915]

Ist er deutscher ? Lg

[@elliotburing87]

Strangest background music ever…..

[@Nauct]

You hold your pen incorrectly when handwriting

[@johncoops6897]

You write your comments incorrectly when commenting.

[@crazywarriorscatfan9061]

'

[@zombiesithblade1579]

Gg

[@fewwiggle]

But, you didn't solve it within 5 minutes..... ;-)

[@Temporary_Doctor]

Cut your right thumb nail, dude.