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6. ANOTHER OF SUPERHEROES and Invisibility:

-Invisibility:

Invisibility is a ma m you or and treated in films and books science fiction and fantasy when there's magic or magic items involved.

Clear examples: "The secret of Wilhelm

Sto ritz" " The Invisible Man " ," Man not so Mbra " , " Fantastic 4 " (Susan Storm, the Invisible Woman ) Predator and secular elas, as well as Alien vs Predator, "Heroes" (Claude), magic items ... we hab lar eg potions, capes, charms, single ring of Lord of the Rings ...

If Noso centers are able to see around us is due to light and our eyes . Inside the eye (which is the organ that detects said reflected light) becomes image into nerve impulses that travel through nerves to the central nervous system and then go to the cerebral cortex, which interprets them. For that to happen this occurs refraction at the cornea and lens, and the transformation takes place in the retina (qu and is opaque).

Objects absorb a portion of the light that hits them and reflect the re sto (opaque), others allow some light to pass through them are translucid years. To make an object invisible , the light has to pass through without any alteration (not re strip, does not absorb light, nor change the light to refract csr).

HG Wells, in his famous novel man l and put invisible main character is a scientist who theorized qu and if you changed the refractive index of a person to exactly match the air and your body does not absorb or reflect light, then would not be visible. Griffin (pr otagonista) manages to take forward the theory and becomes a man in visible. This gives you not notice a di storsión in the image we see the object or person in this case.

As a result of that, in a case where this occur and who had the same rate refractive not form images in the eye and could not see. For Susan Storm (by switching to another character known) could be invisible and at the same time, the lens should be. Therefore not be entirely invisible, we would see two points in the place where the eyes.

There are other ways in which an object can be classified as "invisible" if it can be observed by sight by the factors environment causing it to not reflect light. An object may be visible can be classified as invisible if it is in the position to:

• Being behind an object.
• it the same color as the background or appearance (camouflage).
• Being in an environment that is too dark or too bright.
• Being l and observer blind spot.
• be altering his own appearance, either biologically or technology
• Mimesi s: co m or in the case of some animals

Before the invisibility Dad was only possible in nature and occurred in gases and beings or objects by their size, the human eye could not capture without help of different technology. Scientists now believe they have found a way to alter the effect of light on objects with nanoscale electronic structures, objects getting invisibility small.

Who has not ever wanted to be invisible? I certainly yes ... Even as they say in Spiderman, "with great power comes great responsibility" and usually in most movies or novels that deal with this issue the character that has this quality or you can use just passing

the evil side or leaving the moral and ethical lost somewhere.

-A superhero without powers but with a great technology team behind (and, of course, his loyal butler Alfred): Batman

uses his fists to knock out their victims. Given that a punch is running a fist and pounding it exerts a force-wide implementation. All shock is

in the transfer the amount of movement between objects that interact. The mass in this case depends on the body part that is used and how it is used, taking into account that the momentum is the product of mass and velocity.

For Batman uses his whole body in the coup and the mass of the attacker and beaten are similar, while different with another form of wrestling, karate. With this technique, the karateka uses a hand or foot to knock the opponent and the mass of the latter is higher than its attack causing it to transfer more energy and causes more damage. The first attempt to tire the opponent slowly, the second tries to quickly reduce your opponent.

Alongside Batman can also include other characters known as Flash or Captain America.

Batman also has a hook that allows you to jump on some occasions as Spider-Man (and talk about this character in the 3 rd entry ) when using the spider web to go from building to building, as this uses a rope hook that prevents break due to cable resistance.

Its amazing car, the Batmobile even more impressive than Knight Rider and KITT why is amazing, you can go at high speeds (in the entry cited above I said that Flash has trouble turning and other movements when running so fast, well ... the same thing happens Batmobile and is very difficult to handle), braking, weapons, phones can reduce the width hitting a button ... ( specifications techniques )

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5.AMPLIACION CREATURES (2): Magnus 4.Efecto

dwindling creatures Extension:

The second subject we deal with Little Creatures , and now, I'll expand some more things about them.
As he had remarked that there were such creatures or some reduced in size would have some difficulties (the sound of voices, bones, temperature, relative strength and food) ... they also add some other problems and take advantage of this size.



* Water:

What if the little creature out of a river?

- If we consider a normal sized person leaves the water when it is attached to your skin a ¼ liter, as compared with the tiny person (which would be identical to the normal person, except that it has X times smaller in size), would also have a thin film of water on his body, although minor, for him, in relation to its size would be a great weight. Therefore, unlike what happens to people of normal size, this being would be very difficult to move swiftly.

To explain the mobility or lack of it if it is soaked in water, we use the Reynolds number indicates the ability displacement of a body in a fluid and is given by the ratio of inertial forces and viscous forces, with which the displacement in a fluid depends on the size. The larger the body, the greater the Reynolds number and, conversely, the smaller, the lower your number.

surface tension also acts in the case of the drops of water. In the movie "The Incredible Shrinking Man " when you drop a drop of water on to star t influences the surface ENSIONS

* much muscle and physiological problems:

A diminutive man robust and would be too much muscle, so these muscles could destroy his body. This is what should have happened in the film shrinking man. By contrast, a man who has been increased in size would be fragile and, as already mentioned it in the first inning, would have a very small relative strength.

By reducing the size of the average person, also reduces the lungs, arteries, ... but not enough and this would reduce their metabolic rate would continue to be above normal, which would cause some failures. Therefore people who have a larger than normal or much lower the average tend to live a few years and have physiological problems.



* Previously also commented on the problem of communication with others of normal size or larger, given the frequency of the sounds (if you remember, the smaller the creature, the more acute is the voice and how much more is to be more serious is the voice), this also must add the time difference would need to say the same sentence ... For example, a giant take longer to say "Hello" to a person normal.



After all these problems and disadvantages Why would anyone want to be tiny? Would I find any advantage in it?

If you plan far from certain heights fall off ... you would not hurt to have somewhat reduced in size, would be a great advantage:

An object in free fall as the air reaches the speed limit when its weight equals the resistance force opposes the advance of the air. This resistance depends, for small speeds, frame rate on the fluid. Which is to say that the smaller the object falls, the lower the speed with which it does.

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Physics and Sports:

thought that this entry had already published some time ago, but I was wrong .. now I found when I went up the other.

Sometimes when we see a football game or a repetition of certain releases we keep the mouth open (at least to me if that ever happened to me xD). People tend to talk a lot about sports and the bus is a good place for it (a peak travel time and gives a lot of things ...) and even if you do not participate in the conversation as you learn to have them around. I came to my mind one of the conversations, and discuss how it gives the effect in some sports balls / balls.

Who has not ever released a shot with effect? Who has not tried to stop a throw threaded playing ping pong and the ball is gone for a walk?

Newton in the past and noticed the curved path of a spherical projectile that could follow a tennis ball because friction but the theory is known at present corresponds to a study by Magnus.

" The Magnus Effect could be explained as the shot in which the rotating ball creates a vortex of air around them, carrying the same direction as the flow of air which presents the ball, thus increasing the speed on that side of the ball. On the other side of the ball the vortex rotates in the opposite direction of airflow, which causes slow down due to friction, so the air pressure is lower on one side than another, causing a force perpendicular to the direction of the airflow that bypasses the area of \u200b\u200bhis career. "

therefore affects rotating bodies perpendicular to its movement through a fluid. When moving in the air is a resistance which depends on the relative velocity of the object from the air and in the case of the ball, this force is greater on one side than another.

"Wanted "

If we translate this into a movie like "Wanted" in which bullets are diverted from straight and around obstacles to reach the desired goal that is because there is a force that causes the bullet to make a rope and the force that causes this rope is a force that interacts with the bullet's flight.

Therefore, if you can deflect bullets as the Magnus effect, but one thing is divert .. and another to do the film.

leave here a trailer of the movie in case some do not know. That looks like fire and save the obstacle to reach the target of the fund.

http://www.youtube.com/watch?v=O7ftozVc3lI

also leave this web on aerodynamics in table tennis is very interesting.