COLD HARD SCIENCE.The Physics of Skating on Ice (With SlowMo)

COLD HARD SCIENCE.The Physics of Skating on Ice (With SlowMo) - Smarter Every Day 110

Рет қаралды 5,932,101

10 жыл бұрын

Tweet this: bit.ly/IcePhysics -- FB it: bit.ly/IcePhys
Download a free Audio book: bit.ly/AudibleSED
Infographics are Here: / smartereveryday
Figure skate, Hockey skate, and blade diagram Graphics by Kelly Richard.
www.helloimkelly.com/
Clap skate, Plantar Flexion, and outro logo by Emily Weddle.
emilyweddle.com/
I shot the skaters with a Phantom MIRO LC320S made by Vision Research:
www.visionresearch.com/Product...
Most speeds were around 1750 fps, but I shot the Hocket skid at closer to 3500 fps.
Music made by Gordon McGladdery, "A Shell In the Pit".
Gordon's work is awesome, you should check it out.
ashellinthepit.bandcamp.com/
Glenn Replogle, the Figure Skating and Hockey Player coach was great to work with. Also, a big thanks to Glenn for helping me borrow two skates from the Huntsville IcePlex. www.iceskate.org/
Nick Laurila was very helpful and accommodating. We also became friends pretty fast. It would bring me great joy if people reading this video randomly years into the future would randomly tweet hot dog photos with the words "Here's a Hot Dog on @SmarterEveryDay" to him / nick_l12 . He has reminders setup in his phone when local fast food chains have "Dollar Hot Dog day". It's quite funny, but deep down I'm jealous of how clever it is.
Robert Farrell answered my Facebook appeal for Photographers/Videographers in the Milwaukee Wisconsin area and filmed the skaters at the Pettit National ice Center for me.
He's a photographer www.robertfarrellphotography.com/
-------------------------------
With thanks to:
JR Ginex-Orinion - he helped me by putting the equation in LaTex and giving me a file. This saved me a lot of time and I'm grateful.
Kevin Butler at the Pettit National Ice Center in Wisconsin was helpful in coordinating the filming of the speed skaters.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GET SMARTER SECTION
If you want to learn this in detail stop what you're doing and read the three pages around "Equation 5" in this book. I was particularly interested in the "warm ice" vs "cold ice" issues.
bit.ly/1jRa32X
This is also a great article about why ice is slippery:
lptms.u-psud.fr/membres/trizac...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Instead of saving for my kids' college, I make videos using the money I would have saved.
The thought is it will help educate the world as a whole, and one day generate enough revenue to pay for their education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO!
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Warm Regards,
Destin

Пікірлер: 3 200

@russell2952 4 жыл бұрын

Every Canadian watching this is thinking "whoa, you are really overthinking this".

@danebollenbach4739 3 жыл бұрын

fax

@emmetth4062 3 жыл бұрын

So tru

@kristakiers4981 3 жыл бұрын

Fax

@danielmorgan1108 3 жыл бұрын

I’m not a Canadian but I ski and even I’m thinking that haha.

@dylangleeson2814 3 жыл бұрын

and Russians

@captainimperialism4568 5 жыл бұрын

When Destin mentioned the physics going on in the players’ brains, he wasn’t saying that they were consciously doing math equations in their head, rather that their brain can subconsciously calculate the exact angle, velocity, speed, etc of all the maneuvers fast enough to keep up with the game. I think his point was that, while they may not consciously understand the math, their brain can calculate everything just fine, showing how powerful the human brain is.

@billymays495 4 жыл бұрын

Yeah there's this part of the brain that controls balance and it's crazy cuz all of ur body has to move for ur arms to move out straight and you not to fall down or anything like that even walking would be impossible if we had to control everypart of out body

@julidiamondlover 4 жыл бұрын

Yeah, but that's happening no matter what you are doing, like walking.

@roryhassett9581 4 жыл бұрын

@@julidiamondlover Exactly!! I do it every time I brush my teeth, so that I don't knock them all out with my toothbrush! HAHAHA...hard enough to clean them, and gentle enough to keep them in my mouth! HAHAHA

@TheBackpackingSailor 4 жыл бұрын

similar to how we toss something into a box.

@ahope4u2 4 жыл бұрын

Captain Imperialism .....we are wonderfully created.....

@isitbowseason 4 жыл бұрын

We aren’t smart it’s all Muscle memory

@faisalpaalijo7127 4 жыл бұрын

💯 honesty.. Agile..

@adequitevelocity1089 3 жыл бұрын

So true

@lemonyeti894 3 жыл бұрын

I mean....your not wrong....

@IAMDEAD_01 3 жыл бұрын

Yea

@Ares_Zelf 3 жыл бұрын

Cap, inventors don’t memorize inventions they create them

@christianpeters345 5 жыл бұрын

“Hockey players we geniuses” *gets shot at while trying to conduct an interview*

@alexandrpetrov6812 3 жыл бұрын

True

@rivahkillah 3 жыл бұрын

He didn't say they were nice.

@math768z5 3 жыл бұрын

😂😂

@Kneichion 3 жыл бұрын

I didn't think that was good. Unprofessional.

@healgoth Жыл бұрын

@@Kneichion it was unprofessional to do an interview for an internet video during practice, fair enough trade yeah?

@13sci 7 жыл бұрын

Shows what an insanely complex piece of work our brains are. The fact that a person can do these things without even knowing it just blows my mind.

@boah1668 4 жыл бұрын

nice words

@RADKIT 4 жыл бұрын

No please don't let it blow it its a wonderfully complex piece of creation!

@aplane9248 4 жыл бұрын

Raid kaboom, your brain matter is all over the place.

@phonn6935 3 жыл бұрын

it's mostly muscle memory, so its basically the spinal cord that's the smart one

@literalantifaterrorist4673 8 жыл бұрын

As a hockey player myself, I have to say that we do not conciously think about the balance when stopping. We do, however, semi-conciously calculate the stopping point and angle of the skates so that we get the perfect stop.

@reigning 7 жыл бұрын

O.O

@literalantifaterrorist4673 7 жыл бұрын

+Gessica Tran (Ulfonius) It's actually easier than you'd think.

@mx.olydian2111 7 жыл бұрын

I'm well on my way to joining a hockey team, my boss (owner of ice arena) says i can already do everything i need to play, i just need to learn the rules and get the kit how much does a full kit cost? from a cheapass cardboard box shoulderpads to badass battle armor, what prices am i looking at here (please give what currency you're using, conversions suck if you don't know what currency we're using) oh, and I've already got skates

@alip82 7 жыл бұрын

+Tremaine Kidman it cost alot if you want anything decent Like 2k $ cad

@alip82 7 жыл бұрын

+Tremaine Kidman but for starting out you can just go to a hockey shop and give them your budget

@alasdairduncan3 4 жыл бұрын

I love how much credit he gives to the people he talks to. Scientists, Farmers, Sportspeople who have all worked incredibly hard to do well really deserve that kind of credit!

@user-fv4bz8lv4u 3 жыл бұрын

“Hockey players we geniuses” gets shot at while trying to conduct an interview

@LDacic 3 жыл бұрын

The vast majority of people who are doing well worked bloody hard for it.

@holymolythejabroni9040 4 жыл бұрын

You bring up an interesting point regarding the “background” processing of a hockey player’s brain. Wayne Gretzky was not the biggest, strongest, or fastest player in hockey. Far from it. But he had an uncanny ability to predict where a play was going. He was almost prescient in that regard. It’s also why he was such a prolific playmaker, even long into the twilight of his career. He could make passes through loads of traffic because of whatever background geometry/physics processing going on in his brain. Hockey is pretty unique among the major sports because of Gretzky. Typically the best players possess some ungodly physicality. Look no further than someone like Lebron James. But Gretzky was a reedy, average sized kid who absolutely dominated the game because he quite literally out-thought his opponents.

@CBotts81 4 жыл бұрын

Gretzky had ungodly talent, yes. And he had Dave Semenko (RIP) to make sure that anyone who even thought about making contact with him would be spitting teeth.

@BrucknerMotet Жыл бұрын

@@CBotts81 Don't forget Marty "curved stick" McSorley as TGO's "bouncer" in SoCal.

@flijk6083 8 жыл бұрын

5:28 as a hockey player, im not implying we are dumb but we dont think of all the math it takes and all that, we just lean back a few inches behind and we are good

@NWProductionsHD 8 жыл бұрын

+flij yes but you also internalize all the angles and speed you need. Think back to when you first started skated, you could barely push off, let alone stop - definitely not stop of a specific point. Hockey players like to simplify stopping to leaning into it and that's it. But there's really multiple stages where the blade acts differently in each. You need to remember how to adjust on each of these stages to stop precisely where you want.

@flycuzflyschool2340 8 жыл бұрын

I get what your saying but it's more like its instinct you don't have to think about it

@mccircled77 6 жыл бұрын

@RCmies 6 жыл бұрын

It's in your muscle memory. Implying that you calculate the speed and distance in your brain is complete bullshit that only happens in cheesy science fiction movies. I play a wood wind instrument and it's not like every time I hit a note I'm calculating precisely in my brain what air pressure I blow into the instrument and what frequency the note is I'm playing.

@Luna-zk6zy 6 жыл бұрын

figure skaters stop like that a lot too. It's probably the fastest and most efficeant way to stop. Also, the guy wasn't that fast. I could take a stroke, glide and do the same thing.

@itrest8626 4 жыл бұрын

3:43 the machine looks so cute lawl it has tounge nose n eyes

@StrangeTimesIndeed 4 жыл бұрын

Ha! The sharpening wheel pink tongue. Nice observation!

@Jaewing 4 жыл бұрын

It’s... its blepping! Omg I just realized this XD soo cute!

@mistyminnie5922 4 жыл бұрын

he go blep :p

@thequeenofboba6583 4 жыл бұрын

I'll never unsee it anymore lolll

@slavichwalker9856 3 жыл бұрын

didnt notice that

@brycerahr7829 4 жыл бұрын

See you all in another 5 years when KZfaq recommends this again

@kaylaautry5348 3 жыл бұрын

WHEEZE

@alandecowski5945 3 жыл бұрын

Hello from 10 months later.

@jaakev 3 жыл бұрын

hello! from a year later i dont know if you still use this account but hello!

@thejokestersquad3686 4 жыл бұрын

"If the human brain were so simple that we could understand it, we would be so simple we couldn't"

@nikkiofthevalley 3 жыл бұрын

What's/Who's that quote from?

@Wetnapkin69 2 жыл бұрын

That makes no sense

@Wetnapkin69 2 жыл бұрын

At least to me

@thejokestersquad3686 2 жыл бұрын

@@nikkiofthevalley due to the others guys reply I was reminded this comment exists, but it's contested, it's either Lyall Watson, George Edgin Pugh, Emerson M. Pugh, or Ken Hill. One of the four

@Anonymous8317 2 жыл бұрын

ALAH_AK_BOI 69 it makes sense. We don’t know how the brain works fully. If we did it would have to much less complex. But if it was that much less complex….we wouldn’t be smart enough to figure it out.

@murdocha 10 жыл бұрын

As a Canadian, it always makes me smile when people talk about "ice skating". At least to those of us who grew up here, there are skates and roller skates.

@Freakcent 10 жыл бұрын

Here's a Dutch guy agreeing with you. :)

@brentos96 10 жыл бұрын

Vincent Carmiggelt as a Canadian with full Dutch roots, I have a strong love and appreciation for both hockey and speed skating :)

@m4xchillax959 2 жыл бұрын

Because the term “skating” is used for skateboarding.

@ClubPenguinBand1 8 жыл бұрын

I don't know why but this video is insanely interesting to me. I've watched it like 4 times in the past few days

@nicolavarty7847 8 жыл бұрын

Same

@fancybucket4868 4 жыл бұрын

Every comment here: “As a hockey player myself” Then a paragraph

@sevensevenseven3818 4 жыл бұрын

Fancy Bucket ok

@fancybucket4868 4 жыл бұрын

Avocado ok

@mallorybymers100 4 жыл бұрын

not this one

@bengosse7217 4 жыл бұрын

You are right actully I was watching g the video and he starting saying all the calculations to stop on skates. And I was going to comment as a hockey player it’s not that complicated but then you were the first comment I saw so I just kept watching the video

@Samsquamsh 3 жыл бұрын

As a hockey player myself, I found this comment effing hilarious.

@benxvariety8878 4 жыл бұрын

5:55 i beg to differ. i have a D in physics.

@sap2472 4 жыл бұрын

Me too😑

@simplifimusic 3 жыл бұрын

LMAO

@tilmanstockert6442 3 жыл бұрын

We aren’t the best at school, but we wheel some single moms so it’s fine

@benxvariety8878 3 жыл бұрын

@@tilmanstockert6442 so true. I can't live without barbara now

@itsurboidonnie 3 жыл бұрын

@@benxvariety8878 BARBARA IM DEADDD😂😂😂😂

@SpecificLove7 10 жыл бұрын

Another great video. I had no clue about the curvature of the blades. Thank you for enlightening us.

@viktorbergendahl2696 2 жыл бұрын

Bandy don't have a curvature on the blade like speed skating

@sjuns5159 2 жыл бұрын

@@viktorbergendahl2696 idk if you're saying that speed skates don't have curvature, but they do. It's just very subtle, so that you don't notice it unless you look closely.

@viktorbergendahl2696 2 жыл бұрын

@@sjuns5159 ok i didnt know that but i think that bandy skates dont have a curvature at all

@DMSrunit 10 жыл бұрын

im pretty sure for a lot of athletes do it from muscle memory...reasons for practice

@GldnTnkr19K 10 жыл бұрын

Exactly what i was saying... like when im playin ball, i make it in the hoop because i can feel my muscles telling me how much force and height i need to make it in. I aint doin no trigonometry or geometry to get that shit done.

@calebarchambault9706 10 жыл бұрын

muscle memory is not in the muscles your brain controls it all the genius part is that you have practiced so much that your brain can perform the geometry and trig without conscious thought and you can drive the ball to the hoop. where as if i tried to take the ball to the hoop I would mostly like trip, fall and hurt myself (seriously im not good at basketball at all)

@Zaviex 10 жыл бұрын

caleb archambault your brain is only remembering sensory input from your nerves in your arms when you shoot. and replicating that not the other way around

@AlasdairGR 4 жыл бұрын

There’s something strange about watching someone doing such graceful skating while they’re wearing jeans 😂

@somethingsomething2100 4 жыл бұрын

When you’re job is just being an extreme over thinker, love it

@RJ-ue3ub 4 жыл бұрын

Your*

@dorothymiles7097 3 жыл бұрын

I was watching this during the New Years countdown

@sofiadeleonardo2629 7 жыл бұрын

As a figure skater, skating comes so naturally to me now that I honestly don't even think about all physics and angles put into skating. It always seems weird when people that don't skate talk about skating. I don't know why but it just puts me in check realizing that not everyone knows about skating

@Fish220 Жыл бұрын

I play hockey, and it’s so true. I am a great defenseman but it’s so weird. I just kinda know where they are going. And I literally just use muscle memory to skate as I think “okay you here he’s gonna go here”

@lz5517 Жыл бұрын

This is true of everyone about the various skills in each individual's skillset - sports, music, art, etc.

@makaylaz2004 7 жыл бұрын

I don't understand any of this, but I'm interested

@nikolinadobreva3078 4 жыл бұрын

😂😂😂😭😭😭

@zilchbupkis3109 4 жыл бұрын

I always like when destin is asking questions and destin manages to make them smile and you can just tell they really needed that laugh that’s so awesome

@xxxy0l0xxxxyt4 4 жыл бұрын

I was watching this during the New Years countdown

@recorderboi2232 4 жыл бұрын

Rip 2019

@sawyer6241 4 жыл бұрын

Rip earth

@corruptlem0n868 4 жыл бұрын

So you have been studying for a year

@sameershah6377 4 жыл бұрын

@@corruptlem0n868 nice

@Bonjangle 4 жыл бұрын

One time I breathed

@UPlayNetwork 10 жыл бұрын

Very educational video, i feel smarter everyday watching these, thanks

@williamtishuk1159 9 жыл бұрын

I play hockey and i hate when figure skaters are on the ice before us because they carve up the ice

@StyilshSteph 9 жыл бұрын

I figure skate and I hate it when hockey players are on the ice before because even after the zamboni there are still dips in the ice

@williamtishuk1159 9 жыл бұрын

Lets just agree to disagree

@FlexibleToast 9 жыл бұрын

It was painful to watch the figure skater jumps. I'm a goalie and I feel like they're always trying to mess up the crease. Always huge divets in the ice after figure skaters.

@tpeezyYT 9 жыл бұрын

I play hockey and i hate figure skaters for all the same reasons and because they think because they can ice skate they can play hockey.

@StyilshSteph 9 жыл бұрын

Tommy Page I don't know any figure skaters who think just because they can ice skate that they can play hockey...that's a very general assumption haha

@Ms.Anonymous Жыл бұрын

I love how when he's with experts he's able to say "I don't understand" and let them explain further No one is an expert in everything and it's fine to not get concepts right off the bat Even someone as smart as Destin learns new things everyday :))

@rakketz5976 Жыл бұрын

“The only true wisdom is in knowing you know nothing.” ― Socrates

@prawtism 5 жыл бұрын

"Can you imagine how much math is going through a bird's brain to fly?" :D:D

@koko-lores 4 жыл бұрын

you can cut out the brain, throw a bird up in the air and it will fly. after landing, it will just stay there. until you throw it up in the air again.

@TerrificCupid40 3 жыл бұрын

@@koko-lores well no, depends what part of the brain, then yes, the whole brain no. it would die since heart and all.

@koko-lores 3 жыл бұрын

@@TerrificCupid40 well, no, all of it. Same for cats: cut their brain off the rest of the body, put them on a treadmill, they will walk. Of course you need to make sure that they don't die from bleeding, but it shows that there is no "brain" involved in some of these aspects. Would work for humans, too. Unless we encounter an obstacle, then we suddenly need a brain.

@Scandium_quasar 3 жыл бұрын

@@koko-lores No? That's just not how that works... You need your brain to walk... and even vital functions like breathing, swallowing, digestion and heartbeat, there can be no life without it... Where on earth did you learn that you can walk without a brain??

@OatmealTheCrazy 3 жыл бұрын

@@koko-lores I think you're thinking of dead fish in a current

@Icarus.s 10 жыл бұрын

You sir, most definitely earned my subscription :)

@smartereveryday 10 жыл бұрын

Thanks Scott. I'll do my best to keep it.

@Icarus.s 10 жыл бұрын

:D Holy crap your like the first channel to actually respond to my comments! Dude....You Are AWESOME

@prometeusz2 8 жыл бұрын

+SmarterEveryDay Hi there! Small correction to an otherwise super video. The melting of ice under the skate isn't due to friction, but regelation, the decrease of the melting point temperature in greater pressure (because of the special thermodynamical properties of water). It's why glaciers move, and why a rope can go through slowly a block of ice, without cutting it in half.

@hassanimtiaz6415 7 жыл бұрын

Hhj

@vinceturano1720 7 жыл бұрын

Anton Pegram

@Savebythetender 4 жыл бұрын

I love that sharpness diagram! I use it all of the time and I never knew you guys made it! Also, goalies tend to sharpen their skates to have more bite because we have to be technical in our movements in order to position ourselves to stop the puck. The skaters tend to have less bite because, well, they skate more. It helps them skate faster and they don't need to grip the ice as much as goalies do.

@flare2000x 2 жыл бұрын

Really? I used to play goalie and we always had our skates duller to slide sideways easier.

@Savebythetender 2 жыл бұрын

@@flare2000x To be honest, not really sure why I said that. I must’ve had them flipped around. I’ve always liked mine sharper so I could get a better grip on my butterfly slide while my goalie coach‘s blades where flat and rusted.

@thelemershotx429 4 жыл бұрын

Hey destin! I just want to let you know that the reason behind ices slippery property is not due to friction melting, I would recommend watching Its Okay to Be Smart’s video on the subject matter,

@leotrombley6310 4 жыл бұрын

also an episode of Q I that explains it well

@ChipArgyle 10 жыл бұрын

Jocks and nerds are both physics geniuses. Nerds understand the concepts, math, and formulas involved using their cognition skills but are often not able to translate it into personal physical ability very well. Jocks understand physics intuitively and instantaneously with their bodies, muscles, and nervous systems, but not necessarily cognitively. Both are impressive.

@nobodycares85 10 жыл бұрын

That is 100% spot on and exactly what I was thinking though worded it much better than I would have.

@frollard 10 жыл бұрын

It's just a shame the two sides usually don't see the other's 'ability' as valuable...

@hermest99 10 жыл бұрын

frollard Not untill the nerd becomes the athlete, or the jock starts paying attention in physics class. glad to be the right amount of both :3

@SpiidAcis 10 жыл бұрын

Actually none of them are necesseraly geniuses. Knowing or executing known data doesn't make you a genius. Hmm.. implement imagination, improvisation, innovation - now that's a genius!

@tjNephilim 10 жыл бұрын

SpiidAcis Genius - an exceptional natural capacity of intellect, especially as show in creative and original work in science, art, music, ect.. a person having such capacity. We're all geniuses in our own elements. What are you a genius of?

@hayleeh18 7 жыл бұрын

3:17 "....... I'm sorry" "That's the SECOND TIME"

@nemo227 3 жыл бұрын

Thanks, Destin. I've been watching ice skating for more than 60 years and I've been on skates but I think I've learned MORE from your videos in just a few minutes. Thank you.

@user-vp1sc7tt4m 2 жыл бұрын

Please bring this back to the top of your channel along with many more of your older videos. Consider where you started and so many still are in that space. I watched your wonderful old 2014 video in 2021 and got so much out of it.

@verdatum 6 жыл бұрын

The editing on this video is just brilliant. He does picture-in-picture to provide commentary during a slo-mo shot and dynamically adjusts the size and position of the commentary frame to stay near the action without getting in the way. This allows engagement with the audience while presenting the visual information of the high-speed footage in a way that is so organic that it means that only film geeks are likely to notice it.

@BenightedStar 7 жыл бұрын

Sports physics is so fascinating! Please do this for more sports!! Volleyball would be awesome to breakdown.

@Mitsuraga Жыл бұрын

As a man who cares not for baseball, I would *love* to see a fastball getting hit by a bat through these super slow-motion cameras.

@nogoodnameideas3468 4 жыл бұрын

As a hockey player you don’t really think about friction and angles you just kinda stop. Like my man is overthinking skating

@mmonsterr 3 жыл бұрын

Or you are under thinking

@dajapa 3 жыл бұрын

@@mmonsterr that's his whole point to begin with 🙄

@marcuspvxea 3 жыл бұрын

Proves that you are a hockey player because the video is litteraly about going in depth about ice skates. This is not overthinking, it's called factual and science.

@biyuwu8894 3 жыл бұрын

Love seeing the dynamics of figure skating

@flaplaya 7 жыл бұрын

Jeez, no wonder the importance of the Zamboni. I had no idea so much damage was incurred on an ice surface.

@fizzybunniez4562 7 жыл бұрын

fla playa THE AMAZING ZAMBONI

@finley3459 3 жыл бұрын

Even with the zambonie they cant get all the deep divots out.

@GalaxxVA 3 жыл бұрын

@@finley3459 The hockey net dents 😖🤧😭

@float7567 3 жыл бұрын

"HELLO !, and welcome to tony bamboni's used zambonies!"

@lollertoaster 10 жыл бұрын

If they are geniuses, imagine how smart I am - I can stand straight and not fall over. It took me like 2 years of practice but I finally had figured that out.

10 жыл бұрын

Good for you.

@lollertoaster 10 жыл бұрын

***** en.wikipedia.org/wiki/Child_development_stages#Two-year-old poczytaj sobie.

@sethriggen5255 4 жыл бұрын

You should do one about rollerblade wheels holding on to pavement. I used to use rollerblades as transportation and it's crazy the angles that the wheels can hold at.

@defyinggravity8986 4 жыл бұрын

Yea we aren’t geniuses and we don’t think about the physics while playing obviously but am I the only hockey player who finds this really fascinating

@sebastianocampo8685 7 жыл бұрын

So today I had my very first Hockey training. I couldn't manage to do the Hockey stop, I didn't get how it worked at all. Now sir, my mind is in peace but my feet just can't handle too much greatness yet. A big fat thank you.

@SpiidAcis 10 жыл бұрын

Insects are geniuses too, cause I'm sure they recalculate all the formulas before taking off. They are also aware of their weight, wind velocity, air humidity and pressure.

@tjNephilim 10 жыл бұрын

There is a difference between a Pseudo-Smartass and actually being smart. You should know well enough that insects and human beings are WAY different when it comes to consciousness.

@xenomann442 10 жыл бұрын

tjNephilim he's mocking the idea that hockey players are doing physics calculations in their head in order to stop on ice.

@DarthSinistris 10 жыл бұрын

tjNephilim /watch?v=xECUrlnXCqk

@TheKribu 10 жыл бұрын

Adam Wojtczak Insects do complicated physics calculations as well however they use very specialized processors to do so and due to this fact they get more done with smaller processor. Hockey players DO complicated physics calculations but they do them using part of the brain we call subconciousness and precalculated values (Center of mass, weight of their limbs, stregth differentia of different muscles that have been figured out over years and stored at readily available memory registers for subconciousness) and thus manage to do it efficiently on the fly.

@vedant6633 6 жыл бұрын

IF SO, THEN MATTER IS ALSO GENIUS, IT ALSO FOLLOWS QUANTUM PHYSICS

@UltrasonicRhino 4 жыл бұрын

KZfaq in 2014: KZfaq in 2020: Hey! Watch this.

@articfoxqueen7550 5 жыл бұрын

This video is helping me with my figure skating jumps- thanks Glenn!

@GoRepairs 10 жыл бұрын

Really fascinating stuff. I never knew about the bottom of the blades, good to know.

@CyclingMikey 10 жыл бұрын

I recall reading a study that suggested ice skates don't melt the ice when gliding across it, and that this was a popular but wrong myth.

@prankfiles 10 жыл бұрын

This makes me want to watch hockey.

@averywetfrog 10 жыл бұрын

He talks about this at 8:07 the layer of water is a few nano meters thick.

@zacharyweiner2152 10 жыл бұрын

Skates generate a large pressure on the edge. Ice is less dense than water (why it floats). When you increase the pressure enough, you force H2O to go into its most dense state, which is water. That is why there is a layer of water you glide on while ice skating. You may have also had a science class that "boiled" water at room temperature by putting it in a vacuum - same concept.

@lhstodqaimvf 2 жыл бұрын

This is the first video I watched from this channel and I AM definitely subscribing with notifications on.

@mp4339 Жыл бұрын

its not hard to stop in hockey. love your vids, cool how you make it so complex. I've been playing hockey for 7 years and I didnt even know how in depth this is. i really dont even think about stopping, you kind of just do it

@TheFeralcatz 10 жыл бұрын

You should make a slow-mo video of someone playing guitar! I bet it would be awesome.

@mooshutwentytwo 10 жыл бұрын

Needed this video two weeks ago brother.

@TS-xj5mt 2 жыл бұрын

I knew most of this but still very interesting and great to see the slow motion footage. Real pro presenter and great explanations.

@hailfire27 3 жыл бұрын

Wow after watching this video I realized how much better you've gotten at making videos.

@LeaLikesIcecream 9 жыл бұрын

This was fascinatiing. I am a figure skater and I feel like I understand myself better now :D

@Vatsyayana87 4 жыл бұрын

i like ice cream too..

@keithhenriquez1531 10 жыл бұрын

Your videos are just awesome.

@Pathrissia 3 жыл бұрын

This is amazing and my kind of brain food! Love the presentation! I'd love to see one on snookers and pool! As well as inline skating vs roller skating!

@animod8797 4 жыл бұрын

This is at least my second time watching this video, and I just noticed the awesome editing trick you did with the skate switch but your kid doesn't change. well, either cool editing trick, or AWESOME parenting!

@techexamined 10 жыл бұрын

That's why hockey is the best sport in the world!! LOL.. probably not but I think it is.. Great job as always Destin!!

@gia1420 10 жыл бұрын

I really enjoyed this.

@ella2381 2 жыл бұрын

im relatively new to figure skating (1.5 years - ish) and i still trip over my toe pick but this helped me to understand more! and also learning about hockey skates is so interesting :)

@sionjones1675 4 жыл бұрын

This was awesome. I used to rollerblade years ago and I've ice skated on occasion, I snowboard a lot, and combining those two meant I thought I had a basic understanding of how ice skates worked. But everything I thought I knew, was wrong! Wonderful! I love moments like that!

@RodrigoVzq 10 жыл бұрын

this episode was awesome

@ImReadyD151 9 жыл бұрын

Will you all stop complaining about who ruins the ice before you and all that. Chances are if you've ever skated at all you've put a div it in the ice, doesn't matter what skate you wore.

@Brynnster146 2 ай бұрын

Thank you for this, I’m taking the nerd approach to learning hockey and I am so fascinated by how skating even works, but the more I understand the physics and ergonomics the easier it is to get it in practice.

@abe3252 6 жыл бұрын

I can't count on both hands how many times I've watched this video. Fantastic video Destin!

@white_shadow_123 10 жыл бұрын

Thank you Destin. You did an amazing job explaining how these sports work. I missed smartereveryday..

@this_too_shaII_pass 9 жыл бұрын

Hahaha you are totally overrating how hard it is to stop on ice skates, you just do it on feeling, it's like keeping your balance on a bike, you don't have to know the physics of it at all :D

@teddydavis5383 9 жыл бұрын

cat intensifies You don't have to know the physics of breathing, or drinking water, you just do it. If someone told you to stop running at a specific place, your mind calculates when to angle your foot, and how to do it. You don't even have to give it a thought, its your subconscious doing all the work. But you do have to know the physics of how to do it, its just not that hard for you to do so. Its amazing what our minds can do. :)

@this_too_shaII_pass 9 жыл бұрын

Yep

@connorhuard9679 8 жыл бұрын

+cat intensifies stop trying for people think you are good

@this_too_shaII_pass 8 жыл бұрын

I'm not saying that I'm good at iceskating, I'm saying that braking on them is like keeping your balance on a bike, you don't have to know the physics of it

@neddh92 8 жыл бұрын

have you seen his video on the reverse bike? its not so easy like we want to belive it

@ZamboniJerry81 4 жыл бұрын

Dude you are great at explaining things. I know everything that you just talked about and you tackled it perfectly.

@mikestopak4072 4 жыл бұрын

Hockey player living in Colorado via Alabama! Absolutely love your videos. Your passion is obvious and content always interesting. Thank you for showing the world the wonderful things Alabama has to offer! Great stuff!

@smamit2 9 жыл бұрын

Dustin!!!! Talking about the precision of a hockey player, i thought about the precision of a skater or pro-skater. A skater doing flip tricks has some amazing physics going on, and the level of skill and precision is awesome. I would love to see a video about that! Thanks

@thomasg690 5 жыл бұрын

Wat u said

@Vatsyayana87 4 жыл бұрын

Its Destin

@thormaster06 10 жыл бұрын

One of your best videos!!

@cs4390 3 жыл бұрын

Destin Thank you so much!!!! Great videos!

@benson3955 4 жыл бұрын

2:45 I couldn’t wait for the spike to land

@XplosivCookie 9 жыл бұрын

Interesting that you should say that about curling, one of my school's physics teachers is on the national curling team ^^

@frankiemancuso6511 7 жыл бұрын

Thanks for making me feel good, off to my game!

@jennhoff03 4 жыл бұрын

The difference between most of the moves in figure skating is which edge you're on. One spin is forward on your inside edge, and another is backwards on your outside edge. Every jump has a specific edge you take off from and a specific edge you land on. It IS something that most people don't seem to realize!

@erickatlynstarling1036 4 жыл бұрын

I'm sure you don't read comments on a video this old, but you are awesome, man! I click on a lot of your videos thinking there's not much to learn about the topic, but I ALWAYS learn something cool. Keep it going, bud!

@STARPHASE 10 жыл бұрын

First time I went ice skating, I sucked, because I tried figure skates first. it was awful. Tried hockey skates, and I easily picked it up...Just like roller blades. I roller blade very well, but can't use quad-skates for my life =P Also, most hockey players are very smart. A lot of them go to high end colleges, the goalie of our local ECHL team, had a degree is accounting I think. And that's not uncommon. They're also the athletes you hear the least about..you almost never hear about 'scandals' and/or crime when it comes to hockey players.

@JamesBrown059 9 жыл бұрын

-smart- > -degree in accounting- top kek

@KingHalbatorix 9 жыл бұрын

Xthreeo >maymay arrows

@jakeman8273 9 жыл бұрын

It takes lots of practice for skating. My hockey team was one of the best in my state last year

@AJEDDY97 9 жыл бұрын

Gotta ask, what team you from Stein?

@STARPHASE 9 жыл бұрын

The ECHL? The Ontario Reign.

@Azivegu 10 жыл бұрын

No I feel stupid. I knew that skates had two edges, but never thought about why they did. I guess I just assumed it was to make them stop faster. Thanks for the wonderful information!!! And if you ever come to the Netherlands, I would advise going to the speed-skating training center. I heard they even had an ice physics department there.

@dionysius1b870 3 жыл бұрын

Two things I love the most Hockey and Physics! Great video!

@ryanjankowski1990 5 жыл бұрын

This was so great to watch

@BruceNJeffAreMyFlies 10 жыл бұрын

I loved this video, and my dad was happy to finally have an answer as to what a clap skate does, but I went to the tumbler link and the 'Why do speed skates hinge' picture wasn't there. I'd love it if you could put that up somewhere!!! Either way, love the videos and keep up the awesome work :)

@smartereveryday 10 жыл бұрын

Here you go: smartereveryday.tumblr.com/image/75904936126

@BruceNJeffAreMyFlies 10 жыл бұрын

I LOVE YOU! Thanks :D

@jamesallen4983 7 жыл бұрын

BruceNJeffAreMyFlies be ,b,,

@DreadlockDrummer 7 жыл бұрын

i understand that there is math and complex calculations involved in everything, but i'm pretty sure large majority of people are thinking little to none of that when it comes to doing things like ice skating. It's cool to know the math and science of whats really going on, but not necessary to do it, pretty sure most of them do it by practice and feel, not "hey if i turn my legs at this specific angle and apply 30% power to my left leg, then i should be able to turn quicker and come out of that turn at such and such a speed".

@zekerandolph1397 5 жыл бұрын

If a computer lacks the introspection to recognize that it is computing, does that make it not a computer?

@sach219 6 жыл бұрын

Amazing to find this video was uploaded exactly 4 years ago!!

@gedog77 Жыл бұрын

As an old-time sub this is awesome to come back to.

@servals2384 7 жыл бұрын

My chemistry teacher always told us that ice skates work not by friction, but because of the pressure of the thin blade on the ice. According to her, water is the only element that actually expands as it becomes a solid, therefore when pressure is put on the solid it forms the layer of liquid water you mentioned. Is this actually true or is it just the friction, or maybe partially both?

@scotthix2926 7 жыл бұрын

Yes you have the right explanation.

@nikolaihedler8883 6 жыл бұрын

It's a common misconception; in fact, ice has a layer along the surface where the crystal structure can't form properly, so it's still sort of liquid. This layer is only a few molecules thick, but it's enough to create a low-friction surface on the ice.

@dwergmeneer2419 2 жыл бұрын

You're right but water isn't an element :p

@shadow81818 9 жыл бұрын

Fun fact: That "hockey stop" motion is also how you stop on a pair of skis. It's also called a hockey stop.

@PriestKikyo 9 жыл бұрын

shadow81818 NAH REALLY?!?!?!

@gilgamesh2399 8 жыл бұрын

+PriestKikyo Really, controlling your hockey stop will allow you to traverse cliffs, chutes (cliffs with trees and are narrow) and bowls in the mountains or on harder terrain. It is easier to stay in control and it is harder to fall into the snow when hockey stopping. It is my experience that a pizza stop (skies like a V) in deep snow will end up as a faceplant with your tips two feet below you.

@MrVocalBaby 5 жыл бұрын

this is an absolute masterpiece!

@christianspangler 2 жыл бұрын

Kinda fun to come back to vids like this

@lil_kenny_jones 2 жыл бұрын

I’m a college pole vaulter and there’s a lot of Physics behind it and also a lot that goes into the equipment. An episode on pole vaulting would be super sick.

@waynesaban2607 2 жыл бұрын

As far as friction melting goes, I’ve always believed that the melting was from pressure. We know that water expands as it freezes. That makes ice less dense than water. Conversely, compressing ice increases its density, which causes the phase transition back to water. Water is unique in that in its solid state it becomes less dense, that is why ice goats in water.

@nopigeon 5 ай бұрын

My favorite thing to do in life was ice skate. It felt like it was the best sport with the less friction/contact between me and the ground or water. But your video is answering all the why's. I have lived in Florida for 51 years after spending the first twenty years of my life mostly in the frozen north, Canada - ice skating on the Rideau Canal in Ottawa to work at one end and attending classes at the university at the other end. I was SO thrilled when somebody invented rollerblades and was able to carry on my dream to the closest thing to ice skating I would be able to find in a tropical climate. Thank you for the video.