Recent content by dshield55

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    Sound of 2 identical horns cancels out?

    What if I'm not in between the clarinets at all? As in I was actually wondering if standing at a perimeter several meters outside the two clarinets... not having to hear them at all. I was hoping they'd cancel out in the middle before bouncing off any walls and making it back to me.
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    Sound of 2 identical horns cancels out?

    I'm wondering if the sound of two identical horns positioned perfectly in front of each other and emitting the same sounds/pressure will cancel each other out no matter what where the only variable changing is how far apart the horns are from each other. Maybe an example would be two clarinets...
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    Recoil of bullet passing through firearm barrel

    Thanks, that was more what I was asking. Another question I've asked on here before had to do with recoil over time. A faster bullet has more recoil because more momentum, but it's also going to take more hand strength to stabilize the gun since the recoil is spread out over less time. The...
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    Recoil of bullet passing through firearm barrel

    To clarify the question: compared with a bullet shot with a hot load (more powder), is the more mild load of powder going to cause the gun to flip more than hot load before the bullet exits the barrel causing the point of impact of the bullet 20 yards down range to be higher? The rationale...
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    Recoil of bullet passing through firearm barrel

    I was on a firearms forum and a guy said something along the lines of this. When you're handloading your own cartridges, if you use a mild powder load (less powder) in a handgun versus a hot load (more powder), you would think that shifts the point of impact of the bullet on the target lower...
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    Would changing the weight of gun components affect recoil?

    If recoil is a vector, couldn't it also be a force? Force and Momentum are both vectors, right? For instance, for the purpose of this question, I didn't want to deal with the recoil associated with the bullet and gasses leaving the front of the barrel. Conceptually, I can see that as being a...
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    Would changing the weight of gun components affect recoil?

    So, now I have a whole bunch of questions that I need answering. If kinetic energy compresses a spring, we have the formula (1/2)mv^2=(1/2)kx^2. But if energy is related to momentum then the kinetic energy formula for that is (p^2)/2m. Either way, the momentum of an 8oz bolt system going twice...
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    Would changing the weight of gun components affect recoil?

    Well, according to wikipedia, recoil is momentum. http://en.wikipedia.org/wiki/Recoil#Perception_of_recoil
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    Would changing the weight of gun components affect recoil?

    Well, it couldn't be momentum. I would think it's either kinetic energy, work, or force. If you have a larger buttstock, I know the extra surface area helps you feel. In this video, the guy measures recoil in Newtons, which would be force, right?
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    Physically measuring forces of gun recoil

    I want to measure the forc e of an AR15 recoiling over time from a single shot. The gun cycles at about 900 rpm, so the recoil impulses should be over within 67 miliseconds. There are two different parts to the recoil impulse. Within less than a milisecond, there should be a large impulse that...
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    Would changing the weight of gun components affect recoil?

    Hell if I know. Do you know? I actually wonder this.
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    Would changing the weight of gun components affect recoil?

    I chose my wording poorly there, I do not want to get into discussions of "felt recoil." I just mean recoil attributed to the moving mass of the bolt carrier and buffer.
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    Would changing the weight of gun components affect recoil?

    For the purposes of this discussion, I didn't want to deal with the recoil caused by the bullet and gasses leaving the front of the barrel, I just want to focus on the felt recoil caused by the moving parts of the semi-automatic action. Those parts are just starting to move rearward as the...
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    Would changing the weight of gun components affect recoil?

    Just for clarification, you're saying that the lighter/faster bolt has more recoil than the heavier/slower bolt?
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    Would changing the weight of gun components affect recoil?

    I guess my next question if subjective, but if you're feeling that over 1/26th of a second (800rpm for a light bcg but only half the time is spent applying rearward pressure) versus 1/16th of a second (500rpm for a heavy bcg,) does it really matter? Would a person shoulder even notice since...
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