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Thread: Bullet Cam?
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March 23rd, 2014, 08:05 PM #11
Re: Bullet Cam?
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March 23rd, 2014, 08:23 PM #12Grand Member
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March 23rd, 2014, 08:55 PM #13
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March 23rd, 2014, 09:31 PM #14
Re: Bullet Cam?
Yes I think I forgot to convert feet to meters in my final velocity. But I am unsure if your time from ignition to projectile reaching highest velocity is correct.
I had though it was .0005 seconds
Either way there is unlikely to be any technology that can withstand g forces in the 1000+ range.
If we could solve that problem, we could also make drone fighter jets that could turn 180 on themselves in an instant. Humans don't hold up to G forces very well anyway as we require things like blood to perfuse all our tissues relatively equally.
But I doubt that it will ever be physically possible to create anything that is mechanical that can handle that acceleration. Damn inertia.
A bullet cam is so far our of our reach that I predict that we will be able to warp space time easier than create such a device.
For it to be feasible it must be somehow part of the bullet homogeneously so that it won't come apart. It must be strong as a bullet also.
Beyond handling the acceleration. It would also need to handle the pressure which is presents itself as incredible heat. Something that electronics don't do well with.
Retrieving the images would be quite simple once you solve the first two problems as a bullet that can handle 30000+ G's could also handle -30000 + G's.
In fact that may be the way to think about the problem. Create a camera that can survive crashing into a hard medium that only allows 5" of penetration at 254 m/s without being destroyed. If you can do that, you win.
Hell get one to survive 100m/s with deceleration to 0 occurring in .001 seconds and every defense and space agency will want to talk to you. As you will have discovered the most incredible substance known to humans.Voluntary transactions are the only moral kind.
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March 24th, 2014, 10:14 AM #15
Re: Bullet Cam?
I would imagine that the bullet used to house the cam would not be of the same material as a traditional bullet. Bullets undergo some severe forces in a very short period of time, including obturation and angular acceleration besides linear acceleration. The linear acceleration inside the barrel would be greater due to overcoming the frictional force of the rifled barrel. The bullet would need to be of incompressible material, fired from a smooth bore barrel.
Not sure of any practical application for a camera mounted bullet, except whether it can be done.
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March 24th, 2014, 10:26 AM #16Banned
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March 24th, 2014, 10:55 AM #17Senior Member
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Re: Bullet Cam?
Why not one of those slow motion videos attached somehow to a firearm to follow the bullets path from a rear angle?
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March 24th, 2014, 06:36 PM #18Grand Member
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Re: Bullet Cam?
If you think the G forces are high leaving the barrel......they are a lot higher hitting the target. Imagine going from full speed to 0 in the length of a bullet.
You can try and shoot it into something soft but I am not sure it will work. Although a bullet can survive 30,000 (or 300,000) G's and not be deformed, a bullet shot into something soft will mushroom a little. Does this mean higher G's or is it something else?
Also, the biggest fault in seeing anything from a bullet cam is that your not taking into account the spin of a bullet. I didn't bother to Google or calculate it but if I remember correctly a rifle bullet spins at 200,000 (+/-) rotations per minute.
You wouldn't see anything.
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March 24th, 2014, 08:23 PM #19
Re: Bullet Cam?
If you shoot it into ballistic gelatin that should be survivable for a harden cam. Again at this point it just a thought experiment.
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March 24th, 2014, 08:27 PM #20
Re: Bullet Cam?
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