mistyladybug wrote:but if they tried I could roundhouse kick them in their face.
That'd be awesome
Only if your master was Chuck Norris.
Alja-Markir wrote:I'm not very active, but I sometimes used to practice Jitkyùndo with a buddy of mine. Despite my laziness, however, I do hold a deep reverance for martial arts.
When I was nine, I saw a Tai Chi master at a mixed arts exhibition. He was this seventyish year old man, five foot nothing, and he's fighting all these young guys from every style and school, and seemingly not lifting a finger.
At one point, he asked for a large group of volunteers, about a dozen, and challenged them to land a single strike against him. So they all ran at him, slightly staggered one after another, and he literally just started flinging them across the mat like ragdolls, hardly even moving to do it.
Lavos wrote:Do any of you forum members take any type of martial arts?
If you don't, you really should. Martial arts teaches you self defence, it makes you stronger, teaches you discipline and makes you more healthy.
Me? I take vovinam. Basically combining lightning fast aerial attacks and techniques with beautiful form. Its freaking awesome, you should check youtube for some videos.
Lavos wrote:Let me rephrase that, lightning fast attacks, combined with aerial attacks. And if you train in vietnam, they force you to practice freaking everywhere. On water, sand, concrete and rocks. I think someone who has endured chopping concrete everyday for a few years can severely hurt someone too.
tak197 wrote:Though not the intended meaning of the term, I actually picked up foil this past year, and intend on continuing on working with it. For those who are unsure what I mean, I am a beginning fencer. You know those guys in all white suits with alien like masks and big shiny swords? That s what I do.
Iverix wrote:Just to clear things up though as I think one of the newer members may possibly suffer from a learning disorder:
AKA: Mass times acceleration.
Or Work divided by time. Work, in this case, can also be considered Energy.
AKA: Force times distance.
[EDIT2] I would also like to point out that the scientific term for "speed" is velocity. I understand that when you use the term "velocity" it requires a direction, and in the case of Martial Arts, the correct term would be velocity.
Lord Chrusher wrote:
If we are going to bring calculus in to this which is the way it should be, then a few things need to be fixed.
The sum of all forces, the net force, on an object is equal to time derivative of its linear momentum. Objects usually have many forces acting on them. For instance if I push on one of the physics text books on my desk there are at least five forces acting on it, 1) me pushing on it, 2) the force of friction between the book and the desk, 3) gravity pushing down on the book, 4 air pressure pushing down and against the sides of the book and 5) the normal force of the table pushing up on the book. The book is not accelerating due to the friction or air pressure on it, it is only accelerating if the sum of the forces on it is non zero.
The F = ma formula is only true if the mass of the object is not changing as it moves. While this is true or close to true for many problems some problems like rockets and rain drops falling in clouds require the mass change to be taken into account.
Forces are rarely constant outside of high school and first year physics classes. Nor do forces often coincide with the path traveled which is not always a straight line.
An element of work is force times an element of displacement (distance). These elements can be summed together using an integral.
Power is work per time not work over time - the time derivative of work
Also both speed and velocity are both valid physics terms which slightly different meanings. Speed is a measure only how fast you are going while velocity tell how fast and in what direction you are going. 40 km/h is a speed and 40 km/h north east is a velocity.
Alja-Markir wrote:Mendhi wrote:But then...I don't hear of many battlegrounds recently littered with the bodies of martial artists either
That's because they all survived!
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