Slow Mo Pellet Penetration

The Slow Mo Guys: Slow Mo Pellet Penetration

Gav and Dan whip out the air pistol and watch pellets travel majestically through the medium of... dude's deodorant. 

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Comments (23)

  • ElkDAWG FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    What someone should do with the one where it split at the top (3:51) is Photoshop someone parting it like it were the red sea.

  • hasta_la_pasta FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Sarah with an H

    1 week ago

    The last bit was so good I immediately watched it a second time  laughing

    Edit: And a third

  • noxxboxx FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    This was fun and interesting. Kind of a shame you only used the blue. It would be neat to see how the pellet reacts to the different types of deodorant. As you said, the blue seemed softer. Would the white ones shatter instead?

  • LCPeter

    1 week ago

    Slow Mo Guys: Now with 100% more Terry Crews. 


    I want that as a fragrance!

  • Peyto_Chesto FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    alright boys. How many sticks of deodorant to stop a real bullet?

  • Phatnaru FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    "Not really a test of anything, but it might look good"

    Isn't that it's own test though, Gavin?

  • Fionntastic FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    sell it in the merch store

  • ChrisLayCol FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    I would think the white sticks were just hardened powder while the blue is just gel. maybe im not sure

  • Rippedyanu1 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    They didn't cause as much damage to the light blue ones because a majority of the force that was propelling the pellet dissipated while going through the first two sticks of deodorant (the dark blue). It had little to nothing to do with heat or with them being shot in previous takes. It's also why the pellet stopped in the middle of one of the sticks (it had nothing left to propel it forward) and the penetration holes were significantly smaller (less force spread out after multiple exits and entrances, thus causing less damage through the tunneling).

    You'd see the same thing if you shot through four people with something like a hunting rifle and the bullet didn't hit bone throughout its trajectory. Same thing pops up when using a long row of ballistics gel, which is somewhat similar in density to deodorant sticks.

    Hope that helps clear things up.

    • JungleCorp FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      1 week ago

      you must be fun at parties

    • jest2 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      1 week ago

      Mate, they know this.

    • TheBoJaN FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      1 week ago

      How do you know it wouldn't have gone through more if they had all been the dark blue one? Or half as many if they were all the teal stick? There's quite a big difference in viscosity between the three sticks and the more gelly deodorants tend to turn to goop when left in the sun.

    • kamulas FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      1 week ago

      Your choice of example is... disturbing.

    • Rippedyanu1 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 days ago

      @jest2 If they knew this then why say otherwise in the video? I only typed what I typed as a way to clear up misconceptions on the off chance they read this.

      @TheBoJaN I'm an engineer and my main field is in propulsion. As far as I know, the density (viscosity means absolute jack crap when it comes to bullet penetration, since the bullet/pellet isn't sliding on top of the deodorant where viscosity would come into play) of deodorant sticks is fairly uniform. The reason I said little to nothing to do with the temperature is due to the equation for density, which in it's most simplified form isn't affected by temperature. That being said, temperature will slightly (hence the little of little to none) affect it but not by much because the difference in temperature between a room temperature of like 72 F and outside in spring in Texas of probably 88 F is so negligible it doesn't matter when calculating the difference in heat (info from Thermodynamics and Heat Transfer courses in college)

      @kamulas Fair enough. I honestly wasn't thinking of the implications of the example and just went with an example where this kind of effect would most likely be seen. The other alternative example which I gave was ballistics gel. There really isn't a whole lot of examples to use for bullet penetration physics. The only other example that comes to mind is bullets penetrating and traveling through water. Sorry if that example disturbed you, it wasn't my intention.

      Was my first time commenting on this site, will probably be my last after seeing the response to my comment. Was trying to enlighten folks given this is sorta my field of expertise. Take care folks

  • Ravyn4077 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    I enjoy the sound effect added when the pellet goes through the deodorant.  It's nice and goopey.

  • NerdTeacher FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    That's a fair glisten on Dan towards the end.

  • MartyGras2

    1 week ago

    Hope Dan is ok.  Took a little fall there.  

  • FirenautPhx FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Phoenician

    1 week ago

    Make your own air pellet ballistic gel with Old Spice deodorant.


    Also they're a little slippery apparently.

  • Nialori FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    That sound of the stick after being hit is rather weird....

  • XmasForJuan FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    Every time a new Slow-Mo Guys is uploaded it's like Christmas all over again.

  • hambone776 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    So, 50 BMG next.......?

  • cartmicah FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    Gav this is awesom

  • Liquidus_Snake0 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    1 week ago

    I was really hoping for some pressurized cans.