|
Post by confuded on Sept 1, 2007 15:25:07 GMT -5
Parkour - dont you get trained to fall properly, roll over properly etc..?
|
|
|
Post by goliath797 on Sept 2, 2007 21:28:07 GMT -5
Parkour - dont you get trained to fall properly, roll over properly etc..? Parkour is more like a homesport You dont really get trained, you kind of train yourself And yes, i know how to fall/roll properly, and to distribute weight and the such, but we're not invincible
|
|
|
Post by rayndragon06 on Sept 3, 2007 17:04:28 GMT -5
It seems like fear and anger and sadness or big triggers with me. I have accidentally levitated before. It seems like when my body thinks danger it does it. There was a car coming at me and my boyfriend. We were walking home from the movies. We had gone to see that movie Premonition. It was like 11:00 PM. We were crossing the street. I thought a car was about to hit us My first instinct was to grab him and jump. I kind of learned to do this from part of my martial arts training. I was going to send energy into my legs to strengthen to them so that I could propel us forward in a horizontal direction so that I could get us to safety in the shortest time. It was a split second thinking. I do it. Instead of going across I went up a few feet and did not come back down for a couple of seconds. I was holding my boyfriends arm, while in the air. The car kind of misses us. I fall to the ground, but the way that I fell my legs buckled and felt like they almost broke or something. I think I landed with the wrong amount of force at the wrong angle or something. We are walking home and I am like did you see that? How did I do that? That is not possible? Did you do something? Wouldn't the mass of a person blow out my nervous system or fry my brain or something ? Why did I do it and not even feel strained? We got back to my apartment. I asked him what he saw from his end. He said that when that happened he heard a very very very annoying whistling sound. It was loud and high pitched and was giving him a headache and making his ears feel like they were about to go pop and had stopped when I fell I start looking around and the closet thing that I could find was acoustic levitation. "The idea that something so intangible can lift objects can seem unbelievable, but it's a real phenomenon. Acoustic levitation takes advantage of the properties of sound to cause solids, liquids and heavy gases to float. The process can take place in normal or reduced gravity. In other words, sound can levitate objects on Earth or in gas-filled enclosures in space. To understand how acoustic levitation works, you first need to know a little about gravity, air and sound. First, gravity is a force that causes objects to attract one another. The simplest way to understand gravity is through Isaac Newton's law of universal gravitation. This law states that every particle in the universe attracts every other particle. The more massive an object is, the more strongly it attracts other objects. The closer objects are, the more strongly they attract each other. An enormous object, like the Earth, easily attracts objects that are close to it, like apples hanging from trees. Scientists haven't decided exactly what causes this attraction, but they believe it exists everywhere in the universe. Second, air is a fluid that behaves essentially the same way liquids do. Like liquids, air is made of microscopic particles that move in relation to one another. Air also moves like water does -- in fact, some aerodynamic tests take place underwater instead of in the air. The particles in gasses, like the ones that make up air, are simply farther apart and move faster than the particles in liquids. Third, sound is a vibration that travels through a medium, like a gas, a liquid or a solid object. A sound's source is an object that moves or changes shape very rapidly. For example, if you strike a bell, the bell vibrates in the air. As one side of the bell moves out, it pushes the air molecules next to it, increasing the pressure in that region of the air. This area of higher pressure is a compression. As the side of the bell moves back in, it pulls the molecules apart, creating a lower-pressure region called a rarefaction. The bell then repeats the process, creating a repeating series of compressions and rarefactions. Each repetition is one wavelength of the sound wave. The sound wave travels as the moving molecules push and pull the molecules around them. Each molecule moves the one next to it in turn. Without this movement of molecules, the sound could not travel, which is why there is no sound in a vacuum. Acoustic levitation uses sound traveling through a fluid -- usually a gas -- to balance the force of gravity. On Earth, this can cause objects and materials to hover unsupported in the air. In space, it can hold objects steady so they don't move or drift." This can be found at science.howstuffworks.com/acoustic-levitation.htmI do not know if that is how I did it. I really don't. This is just a guess.
|
|