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The Magic Cafe Forum Index » » Not very magical, still... » » Rhonda Rousey vs Holly Holms........WOW!!! (4 Likes) Printer Friendly Version

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lunatik
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Is there more power if a shin hits someone in the head with its surface area much larger than a fist? Can the lack of speed make up in weight, hardness and mass?
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You were not a physics major were you?
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magicfish
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On Nov 23, 2015, lunatik wrote:
Is there more power if a shin hits someone in the head with its surface area much larger than a fist? Can the lack of speed make up in weight, hardness and mass?

No.
Slim King
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Hooks rattle the brain sideways and do not need to be as powerful as a straight punch in order to KO an opponent.
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Which of most of the big fights were fixed Slim?
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acesover
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Quote:
On Nov 23, 2015, magicfish wrote:
Quote:
On Nov 23, 2015, lunatik wrote:
Is there more power if a shin hits someone in the head with its surface area much larger than a fist? Can the lack of speed make up in weight, hardness and mass?

No.


Why is a .45 so devastating? It is moving slower and is definitely heavier than most handgun projectiles. This debate with guns has been going on a long time and has yet to be resolved. Which is more devastating lighter and faster or heavier and slower?
If I were to agree with you. Then we would both be wrong. As of Apr 5, 2015 10:26 pm I have 880 posts. Used to have over 1,000
Dannydoyle
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Not the same thing and what debate?
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On Nov 23, 2015, Dannydoyle wrote:
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On Nov 23, 2015, rowdymagi5 wrote:
Of course a lot depends on who is doing the kicking and punching. A lot of old timers might remember Bill "Superfoot" Wallace. His kicking power was legendary. And I am talking about high kicks to the face. Bill Wallace was 5'10" and I have seen him kick opponants that were 6'5" in the face with tremendous power.


Yea the "all things being equal" phrase needs to apply.


Good point!
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lunatik
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So now mass has nothing to do with anything.....wow!
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TonyB2009
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On Nov 24, 2015, rowdymagi5 wrote:
Interesting video:

http://forums.sherdog.com/forums/f11/pow......1181427/

True - but misleading. What we are saying here is that a punch to the head is more devastating than a kick to the head. In the video the kickboxer kicked to the waist. At waist height the kick is more powerful. At head height, no.
landmark
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Quote:
On Nov 24, 2015, acesover wrote:
Quote:
On Nov 23, 2015, magicfish wrote:
Quote:
On Nov 23, 2015, lunatik wrote:
Is there more power if a shin hits someone in the head with its surface area much larger than a fist? Can the lack of speed make up in weight, hardness and mass?

No.


Why is a .45 so devastating? It is moving slower and is definitely heavier than most handgun projectiles. This debate with guns has been going on a long time and has yet to be resolved. Which is more devastating lighter and faster or heavier and slower?


FWIW Isaac Newton said: Force = Mass x Acceleration
lunatik
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So there is only so much damage a fist can damage due to mass times acceleration? Is it possible that a heavier leg going slower could do more damage due to its mass?
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TonyB2009
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Lunatik, the physics are almost immaterial. The fact is that if you analyze fights, head kicks are less devastating that punches to the head. Because a foot or a fist is not a projectile, but is attached to a complex system of levers, Newtons Force = Mass x Acceleration is not the only thing in play.

At waist height the foot is more powerful but a punch still hurts. At knee height a kick is devastating, but a punch is laughable.

Another factor is where exactly the punch or kick lands. If it hits on the point of the chin the head rocks back and the knockout is almost inevitable. But if it lands on the centre of the cheekbone you can fairly much shake it off. The kick in this fight landed on the neck, again rocking the skull and doing other damage. But Rousey was out on her feet; a tap on the chest or a leg sweep would have brought her down just as certainly.
Dannydoyle
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Yes it is not about one equation. It is about a lot of different things not dissimilar to a golf swing or tennis racket swing. Getting stuck in your head on "a leg is bigger", which is essentially your point, really misses what is going on.
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magicfish
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On Nov 25, 2015, TonyB2009 wrote:
Lunatik, the physics are almost immaterial. The fact is that if you analyze fights, head kicks are less devastating that punches to the head. Because a foot or a fist is not a projectile, but is attached to a complex system of levers, Newtons Force = Mass x Acceleration is not the only thing in play.

At waist height the foot is more powerful but a punch still hurts. At knee height a kick is devastating, but a punch is laughable.

Another factor is where exactly the punch or kick lands. But if it lands on the centre of the cheekbone you can fairly much shake it off. The kick in this fight landed on the neck, again rocking the skull and doing other damage. But Rousey was out on her feet; a tap on the chest or a leg sweep would have brought her down just as certainly.


Like Danny, said, either a kick or a feather.
lunatik
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I've never seen anyone who's been unconscious stand up.
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TonyB2009
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On Nov 25, 2015, lunatik wrote:
I've never seen anyone who's been unconscious stand up.

I've never seen an elephant in the wild. Doesn't mean they aren't there.
Dannydoyle
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Http://everythingfight.blogspot.com/2010......nch.html

Maybe this will help. From the article.

"Ok, I am not a scientist or some medical guy but I know a lot about this phenomenon called the knockout. Through research, experimentation and painful experience, I have gained enough knockout knowledge and will express it here in very simple terms.

A knockout is something that occurs after a physical blow which renders a person on the receiving end immobilized or disoriented. Although not necessary, a knockout often implies unconsciousness. Therefore, any kind of hit to any part of a body that stops an opponent from doing functional movements for a relative amount of time is considered as a knockout. A body punch can knock the wind out of you; a roundhouse kick to the face can make you see stars."

Can we move past the unconsciousness part please? Now you are fixating on the mass of the leg like you did with the unconsciousness part and it is blinding you.
Danny Doyle
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<BR>In a time of universal deceit, telling the truth is a revolutionary act....George Orwell
Magnus Eisengrim
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Perhaps we should question the entertainment value of brain injury.
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.--Yeats
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