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OfflineHeffy
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Registered: 08/30/04
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Re: Bullets don't fly...they glide [Re: clam_dude]
    #15568914 - 12/24/11 10:51 PM (12 years, 2 months ago)

Quote:

clam_dude said:
Well technically, you might say that I misspoke - when I say "propels itself," I mean it propels itself along the flight path. However, maybe I didn't misspeak because I said a flying object "propels itself through the air".  Bullets propel themselves inside the barrel of a gun, but not externally.  In addition, a shell casing which stores the gunpowder is not the projectile itself.



Are you suggesting there isn't air in the barrel of a gun?


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InvisibleKillerPicklez
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Re: Bullets don't fly...they glide [Re: Dany0]
    #15568943 - 12/24/11 11:00 PM (12 years, 2 months ago)

Quote:

Dany0 said:
It's not flying! its falling with style!






:ilold:

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Offlineclam_dude
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Registered: 09/10/03
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Re: Bullets don't fly...they glide [Re: Heffy]
    #15568946 - 12/24/11 11:00 PM (12 years, 2 months ago)

Well if something is traveling through a barrell, it's not flying because the object is resting on the barrel and can't fall anyways. (Self propulsion isn't the only requirement for flight - a car doesn't fly).  But this is beside the point because like I said, the cartridge and gunpowder that propel the bullet are separate from the projectile.


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"I would like to thank god for making me an atheist" - Ricky Gervais

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InvisibleDieCommie

Registered: 12/11/03
Posts: 29,258
Re: Bullets don't fly...they glide [Re: Heffy]
    #15569260 - 12/25/11 12:48 AM (12 years, 2 months ago)

.

Edited by DieCommie (11/24/16 02:31 PM)

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OnlineBaby_Hitler
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Re: Bullets don't fly...they glide [Re: DieCommie]
    #15569323 - 12/25/11 01:11 AM (12 years, 2 months ago)

Bullets projectile.


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Invisible4runner
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Re: Bullets don't fly...they glide [Re: Baby_Hitler]
    #15569327 - 12/25/11 01:12 AM (12 years, 2 months ago)

God dammit.

Bullets fall.

Sheesh.

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Offlineclam_dude
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Re: Bullets don't fly...they glide [Re: DieCommie]
    #15569365 - 12/25/11 01:32 AM (12 years, 2 months ago)

Quote:

DieCommie said:
Quote:

Heffy said:
Quote:

On Wikipedia, they define flights as an object that propels itself through the air, but then they also include ballistic flight.  This definition must be technically wrong.  I understand that there is a difference between the casual use of a word, and the technical.  But a physicist would tell you that bullets don't fly.  Any physicists care to set the record straight?




Are you under the impression that bullets don't propel themselves?

I mean the gun certainly doesn't propel them.




A bullet cannot propel itself.  Its a combination of the gun, powder and shell that gives the bullet its initial velocity and then shortly after it leaves the gun its on its own.  This is what makes a bullet ballistic rather than self propelled.

A couple thousand years ago some did think that ballistic objects had some kind of 'force' acting on them to keep them going.  They thought that air currents behind the rock, arrow, etc formed little vorticies that caused ballistic motion.  But now days we know that isn't the case.




Quote:

clam_dude said:
I know it sounds ridiculous, but the reason this irks me so much is that when I googled "bullets don't fly" or "bullets don't fly, they glide" I couldn't find my point being brought up anywhere.  But there are countless websites that mention bullets "flying through the air," even sites that are all about guns and ammo, or ballistics, or even physics.  So it seems I'm all alone here, but ask a physicist and they will tell you I'm right.




I have two degrees in physics.  I dont think you are right.  :tongue:





Well, seeing as you have two degrees in physics, I would genuinely like to know why I am wrong.  Since you agree with me that a bullet is not self-propelled, we are simply talking about semantics. Let me ask you, does an arrow fly?  I'm just trying to figure out, how slow does an object have to go before it is no longer flying?


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InvisibleAsante
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Re: Bullets don't fly...they glide [Re: clam_dude]
    #15569518 - 12/25/11 03:29 AM (12 years, 2 months ago)

A rocket is self propelled, a bullet is applied an impulse to.


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InvisibleDieCommie

Registered: 12/11/03
Posts: 29,258
Re: Bullets don't fly...they glide [Re: clam_dude]
    #15570433 - 12/25/11 12:03 PM (12 years, 2 months ago)

Quote:

clam_dude said:
Well, seeing as you have two degrees in physics, I would genuinely like to know why I am wrong.  Since you agree with me that a bullet is not self-propelled, we are simply talking about semantics. Let me ask you, does an arrow fly?  I'm just trying to figure out, how slow does an object have to go before it is no longer flying?




It doesn't matter.  Flying is not a technical term in physics.  It doesn't have a specific unambiguous definition like velocity or acceleration do.  Many terms are like this.  Science doesn't distinguish between creeping and crawling, crouching and stooping, etc.  There is no reason to technically and unambiguously define flying so its not done.

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