COLD HARD SCIENCE: SLAPSHOT Physics in Slow Motion - Smarter Every Day 112

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Tweet this: http://bit.ly/SlapShotSci - FB it: http://bit.ly/SlapShotSlow Download a free Audio book: http://bit.ly/AudibleSED Infographics are Here: http://smartereveryday.tumblr.com/ I shot the skaters with a Phantom MIRO LC320S made by Vision Research: http://www.visionresearch.com/Products/High-Speed-Cameras/Phantom-Miro-M320S/ Most speeds were around 3271 fps, but I shot the full body shot at 1200 fps. Smarter Every Day Infographics are Here: http://smartereveryday.tumblr.com/ Slow Motion sound design made by Gordon McGladdery, "A Shell In the Pit". Gordon's work is awesome, you should check it out. I like his music. http://ashellinthepit.bandcamp.com/ Hockey Stick Rigidity data plotted, and equations formatted into LaTeX format by Will Leahy: http://www.willleahy.info/ "Whippness" Graphic, and shear moment diagrams by: Emily Weddle Design http://www.emilyweddledesign.com ------------------------------- With thanks to: My friend Dr. Jeff Evans. Tenured Mechanical Engineering professor at UAH UAH Director of Hockey Operations Nick Laurila The nameless UAH Hockey player Go Chargers! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION The stick rigidity data collected by Dr. Evans and I is not a formal reflection on the manufacturers because the sticks were previously used and we could not find an ASTM standard to setup our test. The possibility exists that I put the support positions too close together, which would make the values lower. The players however gave us the sticks because they were "so used they were now flimsy". Our data reflected this. If I had it to do over again I would test a new stick vs an old stick. Kettering University has done some research on this subject and we tried to setup our test apparatus similar to theirs. They applied the force to the foot of the stick. We applied the force to the center. http://www.kettering.edu/news/taking-stick-check I thought this was a great video of a product that has normalized the process by constraining the 1 inch deflection measurement. https://www.youtube.com/watch?v=S2f7SQgn-9I Tweet ideas to me @SmarterEveryDay ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SUPPORT This episode graciously supported by several people via Subbable and Patreon. Two such supporters are Mike Ledermueller, and Gabriel S. Redner who both support via Subbable. If you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO! If you REALLY liked it, feel free to support "Smarter Every Day" on either of these two support platforms. Patreon Support Link: http://www.patreon.com/smartereveryday Subbable Support Link: http://subbable.com/smartereveryday Both sites have various perks in exchange for support. Subbable is better for physical things like posters, where Patreon is better for personal interactions. I greatly appreciate your consideration! Warm Regards, Destin

Comments

Local Canadian : As a goalie, when he said he respects us more, that felt great

InvictusByzantium : 3:37 Velcome to hoodraulic press channel!

ShellyTheSeal : That guy has such a thick Canadian accent

Anthony Chon : not going to lie, at 2:20 my brain told me to duck lol

TheLILHIRN : A couple other things that may effect the differences in your numbers is the fact that most players cut their sticks to fit their heights, which can effect the flex. And also most sticks are designed with custom kick points, which means that the stick will flex the most at a certain position on the stick (not always the middle)

Rainbow Six Clips : Who plays hockey here ME

Landon Taylor : I play ice hockey so this was interesting

Ryan Manak : The way you used to measure the flex of the stick was incorrect. Many sticks are stiffer in different areas.

BeerLeagueDust : He should've gotten weber ot chara

GoRepairs : Very interesting to see the power comes from the energy stored in the stick rather than directly.Would be cool to see some more items tested to destruction.....purely for scientific reasons of course. :) 

Sweet Tooth : 0:54 Let me take a selfi

Alex Murdoch : When calculating the compression of the puck, did you consider the temperature of the rubber? In the NHL, rule 13.2 covers frozen pucks: 13.2 Supply - The home team shall be responsible for providing an adequate supply of official pucks which shall be kept in a frozen condition.  The frozen pucks are stiffer and less likely to bounce.

JasonHockey46 : The "hockey stick whip index" isn't as correct; this is more of how it actually is. 75 - Whip Flex 85 - Regular Flex 100 - Stiff Flex 110 - Pro Stiff Flex either way I loved this episode of SED. can you please make more involving hockey like wrist shots or body checks!

July777 : Do baseball pitches!! Fastballs knuckle balls and how each formation is different and how the ball moves in the air...

graaf : 2:20 made me jump from my chair

Phalinx : I played pee wee hockey for a few years, I always tried to hit the puck like a golf shot, not the ice before. WHERE WAS THIS VIDEO 15 YEARS AGO?!?!?!

buk1237 : You should look at Archery sometime

Su Ring : LOVE this, especially featuring UAH hockey in this very interesting science lesson!

Fjerid : 0:58 That dude probably wears glasses. Look at his hands moving towards his nose/eyes. haha

Jeffrey Rose : we want more hockey!!!

Mrgunsngear Channel : Man I wish I had access to your gear!   Great video as usual. 

Justin Zymbaluk : That hockey puck looked extremely dangerous! Glad he dealt with it

jayfulf : Destin I think you should forward this to professors of first year engineering and have them forward it to their students.  Having studied it I think this is a great video to demonstrate shear and moment diagrams, bending stress, sheer stress, deflection etc.

Veo 16 : How long did it take you to set up that transition in the beginning? 0:01

Specific Love Creations : Very cool, I did not realize the stick would flex that much.

DoxNP : Read the text under notes at 4:22 :D

Level Zero D&D : is that slo mo sound accurate as well? or was some sound effect added in?

radet2 : U lost me when U started talking physics !

Lorenzo Breda : Physics is just cool.

Abdul Ahmed : When u guys were testing the flex of the stick maybe wrong because different sticks have different flex points and players get the one that fits their style of play. I like taking quick shots and getting a quick release on the puck so the flex point for my stick is near the bottom of the stick, closer to the blade. Vice - versa for people who like to load up on their shots and what not. And some sticks are not well balanced as well, Some sticks that are expensive, their balance point would be in the middle, It will be different for cheaper sticks.

Vandrefalk : Pure joy watching stuff like this, thank you so much!

gotja : A lacrosse one now please

Gergo Lippai : *now* I go over to Patreon and set up some support for you

Bahrzy : Could you talk about the physics of hockey hits, i feel you and others might find it quite interesting. (Could we also get a video of you skating) Love the videos keep it up!!!

Foreigner : I hope he gets a new stick. ..

794613825 : 3:00 The "EXIT" sign is blinking!

darbreter : Science aside, are you learning and enjoy this greatest of all team sports?

Xinthose : Psalm 111:2 King James Version (KJV) 2 The works of the Lord are great, sought out of all them that have pleasure therein.

Nick Torres : I am learning about shear stress and moments in my engineering classes at YSU! This definitely makes it more interesting! Thanks!!!

Feed That Emptiness : 1:03 Is it possible that the guy looks more attractive missing a front tooth? Cuz he looks violent and comical at the same time. xD

togogot0 : Wow it says "No views". I've never had that before

padlockd : What's your process for adding audio to the slow-mo shots?  Are you using the same audio that you captured during the event, or is it all in post?

Dudok22 : Zdeno Chara is master at this. and snapping the hockey sticks in half :)

Salim Boo : I definitely enjoyed learning this new concept. Very awesome.

Eric Pettersen : 21 views and 22 likes. This channel is just too good.

Kram1032 : That's some insane stuff! Nice!

chapel976 : TIL Hockey exists in Alabama. Good on ya.

Vic Vandamme : 5:57 "Thanks for 'sticking' with me"

CovertFutureV2 : I play hockey and already knew the mechanics behind a slap shot. Even though I thought I knew it all I still learned about the flex and how the companies are all lying to us.