AK-47 Underwater at 27,450 frames per second (Part 2) – Smarter Every Day 97

In which Destin uses an AK-47 to teach you the Physics of cavitation.
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Diagrams created by Larom Lancaster as part of his personal creativity experiment

We used 2 high speed cameras in this video. Both were made by Vision Research:

I the stuff above water level with a Miro LC310

Gavin shot all the stuff below water with the V1610

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31 comments Add yours
  1. I have to correct you at 3:42. The rest of the cycle is not driven by inertia only. The small gas vents do not vent all the gas, it is just a means of managing excess pressure so the weapon doesn't over-cycle.

  2. I noticed something else nicely demonstrated here. Thunder.
    When the atmosphere is super heated by lightning, the expanding gases are creating huge bubbles very like the ones seen in the pool. As those bubble collapse and bounce back and forth until the energy is dispersed, notice the noise created. Sounds just like scaled down thunder.
    We've all heard of this, but here you can see it happening.

  3. I think I feel like I am going to get terrified sick by thinking of me getting shot by guns for not shooting an animal and that would happen if I don't, then I get fired and get shot by guns for the people who are disappointed in me.

  4. Might have better luck using a sabot stainless steel fluted sharp pointed dart like the underwater cowboys did in the old west, the downside would entail making a custom sabot to fit the fukking dart.

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