Now I want to have a shit as an access badge or somethingā¦
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Sure they have USB-C, but itās only by government fiat. They were forced to, instead of going 100% wireless. (The statues/laws are really interesting, and the court admonishments are interesting tooā¦ if youāre into that sort of thing.)
Wanna talk about it?
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Did anyone remember Google wallet before they made it into an app? In like 2014 Google wallet was a physical card, and you would use your phone to decide which credit card it linked to. It never expired and you could switch cards on the fly. Seems like that would have been a perfect solution to our implants.
I still have the old physical card somewhere. Shane they discontinued it but Iām okay with the new implementation of the on phone wallet app.
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One review says they got shoe cleaner instead XD
Never been into tactical stuff but this looks kinda cool:
All it needs is a DT stickerā¦
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Wouldnāt the impact of a bullet break your neck if it was stopped by your face?
Looks cool
Hoolywood has misrepresented how much energy a bullet imparts
So just a headache?
Not reallyā¦ Hollywood has exaggerated what bullet impact is like
Remember newtons 3rd law
For every action equal and opposite reaction
The recoil of a firearm is ballpark what the bullets energy is on impactā¦
So imagine a rifle butt stock against your head and firing itā¦not great/ā¦ not insta neck break
Also itās going to come into play HOW the armor is defeating a bulletā¦
steel plate defeats it by being harder and deflects energy into the bullet spall
Composite is going to try to absorb or crumple zone
There IS a lot of energy in play, but it depends on surface area and time frame of transfer
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Damn you ai lol
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There are a lot of things that change the way a recoil is felt with different armaments. Buffer tubes, springs weights. I didnāt know if that is an accurate statement.
Kinetic Energy Of The Bullet
The bullet whistles through the air, fighting it are the forces of momentum and gravity, push and pull. Finally hitting its mark, the bullet imparts kinetic energy to the target equivalent to half of its mass multiplied by its velocity squared.
Correct
Those donāt REDUCE recoil as often colloquially described, but simply change the time frame in which the energy is transferredā¦ or a better way to explain is that it changes the recoil impulse
Other things such as muzzle breaks, and some compensators, do actually reduce recoil by venting gas in the direction of recoil impulse canceling some out
But something like a 12 gauge pump or a standard bolt action rifle doesnāt use these tricks to soften it, a 12 gauge recoil is still, but it doesnāt break your shoulder as people often love to over exaggerateā¦ at worst it bruises (typically from bad shooting form)
Back to the armor discussion,
armor is complicated
when looking at stuff like that helmet, the more important thing to look into is āback face deformationā
This is the effect of the armor catching and slowing down the bullet but it does it over a distance that is sometimes longer than the armor is thick, which results in forces being exerted into the body
In the case of a soft body armor (think cop vest)
It may stop the bullet but have something like 2ā of back face deformationā¦ so imagine instead of a bullet sized foot print on impacts itās a goofball sized impact that pushes into you 2-4ā at a good amount of velocity
Gunna hurt like a mother, possibly break ribs, or in the case of central thoracicā¦ it could stop or damage your heart depending on the shot
āStoppingā a bullet is only half the equation
You need to stop it quick enough without transferring too much blunt force impact to the wearer
Chinessium helmets often have very extreme levels of back face deformation, that would crack your skull or lead to severe TBI
Back face deformation, edge test, and shot density, and even special threat rounds are all things that complicate armor
NIJ is the standard go to org for certifications, but it costs money and many MANY companies skirt it by saying their product āmeets or exceedsā
(And only meeting or exceeding cherry picked parts)
or is ācompliantā rather than actually ācertified NIJ X standardā
Whatās even more fun and complicated is
Letās say you wanted to make armor that can stop .308 Winchester / 7.62x51 NATO
.223 Remington / 5.56x45 NATO is a smaller and lighter round, so youād THINK itās easier to stop that 308, but it depends on what type of armor we are talking aboutā¦
something like steel itās easier to stop 308 because itās a physically larger and slower bullet, regardless of energy
Where as the 223 will go thru it like a hot knife because of velocity and footprint
Those kind of Chinese companies will ātestā it with 308 and then let people make their own flawed conclusions that are everything lower is stopped by it
You also have things like poly plates, which uses I forget what, but a particular blend of plasticā¦ and works really wellā¦ until it gets coldā¦ and then itās properties changes
And ceramic plates if mistreated can develop internal hairline cracks that significantly weaken it
Fabric aramid soft armor can be significantly degraded from biological growth occurring inside it from humidity, so they are often sealed, but maybe that sealed bag is shitty and it allows in humidity from your body
Steel armor is often easily defeated by higher velocity rounds, and can cause such extreme spall from the shattered rounds to pose a lethal fragmentation risk
Anyone that says that body armor is easy, is either ignorant or lying
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They can also redirect the energy so that itās not all straight back into your hand and shoulder. Iām super interested in rifles like the kriss because it has a huge spring loaded weight in the stock that effectively shoots downward which redirects the energy and also counteracts muzzle lift. The full auto version for military can fire 45 caliber rounds one after another in auto mode and the muzzle barely moves.
Having shot the KRISS, Iām very underwhelmed in semi auto
Im sure the balance is great during full auto, but during semi, you still feel a lot of impulse, the timing is not synced well
Also the safety levels are god awefulā¦ digs into my thumb with every recoil impulseā¦
This. The recoil felt from the weapon is stored by the potential energy saved from the spring at each reload. So the statement that what is felt as recoil is equal to what is stopped isnāt genuine.
Alsoā¦
Equal and opposite reactions
An AR is not a blow back, the breach is sealed during most of the recoil impulse imparting force straight through the stock
Once it unlocks the bolt is driven back by gas pressure from the gas port
You should try shooting an ar with its gas system disabled it actually has a softer felt recoil since you arenāt slinging around a half pound of bolt carrier
Even in the case of a blow back design, springs donāt push back in only the direction you compress them,