Shockwave Shadows in Ultra Slow Motion (Bullet Schlieren) - Smarter Every Day 203

  • Published: 01 November 2018
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    Read about Schlieren Imagery

    Derek from Veritasium made a great video about Schlieren

    Mach Angle

    Transonic Regime

    Oblique Shock

    Normal Shock wave equations:

    .300 AAC Blackout

    Huge thanks to Dr. Kanistras

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    Ambiance and musicy things by: Gordon McGladdery did the outro music the video.
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    Warm Regards,


    Disclaimer: Information related to UAH contained in this video is subject to change by the appropriate officials of The University of Alabama in Huntsville without prior notice. Material and information in this video do not serve as a contract between The University of Alabama in Huntsville and any other party and do not serve as an endorsement of any paid sponsor of this video.”
  • Science and Technology Science and Technology

Comments • 4 125

  • It's Okay To Be Smart
    It's Okay To Be Smart  1 years back

    I dreamt of this day, and here it is. Thank you for doing the video I hoped you would one day do, Destin. So cool 😎

    • 711
      711  1 months back

      Can anybody plz tell what are those circles emmiting from the front of the bullet?

    • Muhammad Mohaiminul Islam
      Muhammad Mohaiminul Islam  5 months back

      0:47 Why did you "cut the half of light"?

    • Michael Kenney
      Michael Kenney  6 months back

      Those circles are micro cavitation waves. where the air is being compressed to what I would call the "bounce back point where it meets the next compression /cavitation circle and they just cascade behind it. a lot like a large ship seemingly drains the water behind it then it fills back in. but this is moving so fast that it sick air from the air that's already been compressed.

    • Ducaso
      Ducaso  8 months back

      @Sewan & Sawen Creations Well, any amount of exposure to loud sounds in the decibel range of a gunshot will likely cause permanent damage to the function of the ears if encountered often and without adequate hearing protection. The same can be said of people working in heavy machinery, industrial factories, construction, freight, airports, and aviation just to name a few.

    • Raymo_2_u
      Raymo_2_u  11 months back

      I would have loved to see a .45 fired as it travels much slower and I wonder if the waves would have started more towards the ends and not the middle, then out of a suppressor.

  • Haze Main
    Haze Main  3 days back

    Oh yeah, 12.. somethin...

    • Neeraj Sahu
      Neeraj Sahu  5 days back

      Professor was very cool and genius

      • 7curiogeo
        7curiogeo  6 days back

        As a target shooter I found this very Intresting.

        • Omer Celık
          Omer Celık  1 weeks back

          I dont understand but I enjoy please subtitle

          • Ryan Hawkins
            Ryan Hawkins  1 weeks back

            GREAT JOB, one of the coolest videos I have seen in a long time!

            • stellvrspvcy
              stellvrspvcy  1 weeks back

              this is a great video, but im really intrigued by the recommended book in your sponsor message. i havent read it yet, but its a very interesting topic of which we keep seeing more and more effects in society. a big fan of your content, but definitely a bigger fan of your character and mentality! kudos to you, sir :)

              • bo ptah
                bo ptah  1 weeks back

                It is interesting that the gun does not recoil until the bullet is well clear of the barrel.

                • Lil'Yeshua
                  Lil'Yeshua  2 weeks back

                  The subsonic round looks like a military jet going supersonic

                  • Peter Ruiz
                    Peter Ruiz  2 weeks back

                    " SUBSONIC".....ppffffvvvtt!...Cracks me up how guys thing subsonic is " higher performance". It is SLOWER. The FBI developed sub9 mils for suppressor
                    stuff. Quieter, not " faster".

                    • PessiOpt 9
                      PessiOpt 9  3 weeks back

                      What happen if an object going at mach 1 and beyond suddenly stops?

                      • Emmanuel Santos
                        Emmanuel Santos  3 weeks back

                        Smart people are dying for someone to ask them a question, so they can explode. I think if they don't let that out, they'll die. Cool video man.

                        • Truly Infamous
                          Truly Infamous  3 weeks back

                          I'd love to see taoderfledermaus shoot a 5k feet per second bb past that setup and see how shallow the angle would be.

                          • Ronald Hodgson
                            Ronald Hodgson  3 weeks back

                            They make these bottom barreled revolvers. It puts that shock wave right next to your fingers.

                            • Pyramid head
                              Pyramid head  4 weeks back

                              How many of you , can not only appreciate the beauty of shock waves , but also the turbulence in the wake of the bullet and in the expanding blast ?

                              • Derek
                                Derek  4 weeks back

                                I would love to see a video about transitional/intermediate ballistics with different muzzle devises like flash/sound suppressors, compensators, etc... like how the waves change, reduce the sound and direction of the waves. Or even how those waves or gasses not coming out symmetric chance the bullets path and accuracy.

                                • Derek
                                  Derek  4 weeks back

                                  I guess you kind of did this in your 204 video. Super cool and I would still love to see you delve deeper into this

                                • Derek
                                  Derek  4 weeks back


                              • Willi M
                                Willi M  4 weeks back

                                Excelente video felicitaciones muy buena tecnología para desarrollarlo gracias sigue adelante.

                                • Arbuthnot Mumsboy
                                  Arbuthnot Mumsboy  1 months back

                                  Smarter every day? Bit less stupid every day doesn't sound quite so inticing.
                                  Wiser every day is a whole different challenge.

                                  • Remington Bradley
                                    Remington Bradley  1 months back

                                    2:32 Destin: Fye.. cehhh couggg cahhh. LOL you gotta love 50BMG's!

                                    • TechTICAL gaming
                                      TechTICAL gaming  1 months back

                                      Do RPG-7 back blast

                                      • HEROL HENRY
                                        HEROL HENRY  1 months back

                                        how about the Nagant M1895 with suppressor preferably?

                                        • Hisalee
                                          Hisalee  1 months back


                                          • Thiago Freitas
                                            Thiago Freitas  1 months back


                                            • Asim Rehman
                                              Asim Rehman  1 months back

                                              i studied whole subject about aerodynamics yet wasnt clear about this till now hats off man

                                              • Dmitry Ivanov
                                                Dmitry Ivanov  1 months back

                                                Do it 3d

                                                • Life4Cinema
                                                  Life4Cinema  1 months back

                                                  I love this. It is fascinating! I still wonder for what reason is half of the light cut away? 0:45

                                                  • raptorsean #1
                                                    raptorsean #1  1 months back

                                                    Wow, cool!!!!

                                                    • Mohammad Ans Ishtiaq
                                                      Mohammad Ans Ishtiaq  1 months back

                                                      light scan is strange is tha a joke

                                                      • Putimo Jan
                                                        Putimo Jan  1 months back

                                                        They’re the only guys who just bullied a bullet

                                                        • shasys
                                                          shasys  1 months back

                                                          You're the first YouTuber I've allowed bell notifications

                                                          • Helder Paixao Felix Filho

                                                            fk man
                                                            ty for this

                                                            • Stxllor
                                                              Stxllor  1 months back

                                                              Linus would say,

                                                              HOLY $H!T!

                                                              • Abhishek Srivastava
                                                                Abhishek Srivastava  1 months back

                                                                This is the best video on Youtube posted ever. Period.

                                                                • إبراهيم الهلالي

                                                                  whats is your "aerodynamics book" you talked about in the video ? @SmarterEveryDay

                                                                  • إبراهيم الهلالي

                                                                    whats is your "aerodynamics book" you talked about in the video ? @UC6107grRI4m0o2-emgoDnAA

                                                                    • Deezie Jones
                                                                      Deezie Jones  1 months back

                                                                      I wanna see s bullet go through a wall of water in slow motion

                                                                      • Random world
                                                                        Random world  2 months back

                                                                        Russian are far more better in physics then western

                                                                        • Cliff Kelley
                                                                          Cliff Kelley  2 months back

                                                                          The slow-mo video of the revolver also shows the hilarity of putting suppressors on revolvers!

                                                                          • * *
                                                                            * *  2 months back

                                                                            I could watch these all day.

                                                                            • K CC
                                                                              K CC  2 months back

                                                                              Woooow what a Video !!!! Please more of this bullet things !!! Please !!! Like ballistic !!!

                                                                              • Konstantinos Ntinos
                                                                                Konstantinos Ntinos  2 months back

                                                                                I fully understood this guy when he said: Δεν γουι γκόου μπακ του σαμπσόνικ. Ιτς ε νόρμαλ σοκ.

                                                                                • LeGut
                                                                                  LeGut  2 months back

                                                                                  I've slowed down the last video to 0,25x to see it even better. haha. I'm guessing a bunch of other people did the same. Thanks, YT.

                                                                                  • guloguloguy
                                                                                    guloguloguy  2 months back

                                                                                    ......AND WHAT ABOUT SOUND WAVES, UNDERWATER??!!!!!!

                                                                                    • guloguloguy
                                                                                      guloguloguy  2 months back

                                                                                      WHAT ABOUT "SUPPRESSED" FIREARMS???!!!!!........

                                                                                      • guloguloguy
                                                                                        guloguloguy  2 months back


                                                                                        • Gringo Foraster
                                                                                          Gringo Foraster  2 months back


                                                                                          • RAGE BULL
                                                                                            RAGE BULL  2 months back

                                                                                            You know when you see Destin with a parabolic mirror right?😅😆😆😆😆

                                                                                            • Tony Troi Komenda
                                                                                              Tony Troi Komenda  2 months back

                                                                                              greatest cool job!