sexta-feira, 30 de novembro de 2012

Endless scissor - travelling above light speed



A scissors is made of two rods attached by one of its ends. While the scissors closes,  the other two end began to move one against another. The point of contact, called "wire scissors' sliding the wire to the tip.

By opening and closing, it is remarkable that the wire slides from one point to another stem growing fast enough that in a given moment it's been impossible to accompany him with his eyes.

In example, I'll use a very large scissor, with 300.000 kilometers each rod. Positioned at 90º, as a Cartesian plan. Between the two rods is positioned a sphere of insignificant size.

Then we have a sphere resting in right angle between the two rods. We started to close the scissors at 300,000 kilometers per second on each stem. They approaches faster because each one goes against the other and doubles the final speed.

The final positioning of scissors would be 45º degrees as each rod is going toward each other.

To get the time it takes to close the scissors we just need to use the angular velocity of Newton:

W = A / T
where:

W = angular velocity (km \ s);
A = angle (degrees);
T = time (s).

then we have:

600 km \ s = 45 / T
T = 45/600
T = 0.075 s.

We now know that the scissors will close 45º at 0.075 seconds and the sphere will travel a distance of 300,000 kilometers at this time. We now calculate the speed like a straight. Because the wire will go through an entire rod.

V = D / T
V = 300,000 km / s 0.075.
V = 4,000,000 km \ s
where:

V = velocity (km \ s);
D = distance (km);
T = time (s).

Thus, this sphere can achieve in just 300,000 kilometers a speed of 4,000,000 kilometers per second, well, much more than light itself.

In another example:

Let's use a 50 meters rod.

Pi = 50 meters x 160 meters (rounded)

 112 500 000 rpm / 60 = 1,875,000 revolutions per second

1,875,000 x 160 = 300,000,000 m \ s (angular velocity\W)


This is the limit for a rod of 50 meters, 112.5 million rpm (revolutions per minute).

Now let's see how the wire will produce with a max angular speed for a rod of 50 meters.

W = A / T
600,000,000 m \ s = 45 /  T
T = 45/600 000 000 m \ s
T  = 0.00000002 s

V = D / T
V = 25 m /  0.00000002 s
V = 1,250,000,000 m \ s

A  50 meters rod produce 4x the speed of light and is "only" needed an engine with power of 112.5 million rpm.

Starting from the beginning of the two first Newton equations, to construct a final equation for rods and scissors respecting relativity:

W = A / T
V = D / T

Then we replace T:
V = D / (W / W)

or

V = D / W 1 x / A
V x A = W x D

W, which was within this equation can be replace by this:

wheel diameter x pi = length of the circumference x (Rpm/60) = m\s x  3.6 =  Km \ h

or

W = [D x π x (rpm/60)]

The result was:

V x A = D / 2 x [D x π x (rpm/60)]

D / 2 - half because it is for a half rod and not the entire one.

More detailed yet:

rpm/60 = H (hertz), thus:

Π x D x H <= 300,000,000 m \ s
Minor equal to 300,000,000 m \ s because we do not want to exceed the speed of light, it is not permitted 
to physics laws.

Then

D x π x H <= C
soon,

(D x π x H) / C = 0

We return to the equation:

V x A = D / 2 x π x D x H / C
However, as we have two rods moving toward one another, W is doubled.

2 x V x A x C =  D x (π x D x H) ²

Every scissors or similar mechanism must obey this mathematical rule or law:

D x (π x D x H) ² / 2 x V x A x C = 0

Where,

π = pi;
D = diameter;
H = Hertz;
V = Velocity of wire;
A = Angle;
C = speed of light.

Thus, the speed of the wire scissors, does not exceed the speed of light and to take away the actual proof, we use the second example to see how it changes the whole outcome when entering the line of relativity.
We use a rod of 50 meters at a frequency of 1,875,000 Hz, which is the maximum that the rod supports.

D x (π x D x H) ² / 2 x V x A x C = 0
50 x (50 x 3.14 x 1.875 million) ² / 2 x V x 45 x 300 000 000 = 0
V = 160 475 260 m \ s or 577710937.5 km \ h

This will be the maximum speed that the wire will shear obeying Einstein's relativity.

But there is a problem. It was to run the wire to 1.25 billion m \ s according to Newton and naturally, but relativity will stop the wire to 160 million m \ s. As Einstein himself said,  space-time is what distorts.  

Suppose the following will occur in the simulation of this event:

As was to run the wire to 1.25 billion meters per second and can only go to 160 mi, rods and wire will not distort. I think that at nearly 90% of the length of the rod will be formed beads / circles, by themselves, and return to 70% extension of the rod to then, follow the natural sense. That's because relativity "stop" the wire, in fact she needs to distort the rod to turn this event in the limit of speed. I call it the time-warp, what happens is that the scissors will distort 1 billion kilometers and wonder, the space in front of the sphere will goes backward ? behind the sphere that is being pushed?

I think this will happen in the simulation, and this is what I'm producing at the moment.

As this simple example, where 3 is the bending moment:
Under construction.

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