Sunday, December 21, 2008

How To Hack Three Mobile Dongle



Imagine a huge ball of garbage goes from space to New New York, which would you do to deflect it. Okay if you are guinoista maybe your idea of \u200b\u200bHollywood is sending a bomb on one of the failures of the ball to deflect it, but not if you are licensed in physics such as Futurama, dammit. But hey in the end this idea fails, so they decide develop another, even more crazed send another ball of equal mass and consistency to impact against it. It is a much better idea than a bomb, but now think for a moment the mass of garbage that was on the ground.


The film that taught Professor Farnsworth speaks of a garbage crisis in 2000 in New York, at that time its population was only about 8,000,000 people in the metropolitan area. Each person generates about one kilo of waste a day, come think that about half of these wastes are recycled, so do not account for the global computing means that each day New York produced about 4,000 tons of trash daily. If the crisis was so serious as paint waste would send into space a year, a significant amount. That would send into space signicaría approximately 1.5 million tons of trash in the direction of space. So moved by the interest I decided to calculate that energy we would need to accelerate the rocket to escape velocity of the earth. To do this I had to delve into the physics of rockets. Rockets ducted by direct application of Newton's third law: For every force acting on a body, it performs a force equal but opposite to the body that produced it. To do gas combustion occurs within a closed receptacle, such as on both sides of the chamber pressures are equal are to be balanced, while the pressure at the top will produce an absence of pressure thrust on the bottom, so we get an impulse response to the pressure in the combustion chamber .

For a deeper development of the calculations are going to do next, you can visit this page where you will find everything relevant to the physics of rockets. If we now consider the rocket as an isolated system must satisfy the principle of conservation of momentum. If the rocket has an initial mass Mo, the mass after the expulsion of M gases, the exhaust rate of gases Uo the initial time, and volume of gases expelled to the instant t is Dt, and the velocity V, we get that the speed of the rocket can be expressed as:


Therefore we can easily calculate the initial mass that will have the rocket and from it calculate the amount of fuel it carries. If we assume that the speed we want to achieve is the escape velocity of the earth, about 11200 m / s and the initial velocity at which the gases of the rocket is about 2000 m / s. We show that the initial mass of the rocket must be about 9.9 million tonnes. If we now consider that the tenth part ofthe rocket's mass corresponds to the fuel tank, we obtain that 8.4 million tonnes fuel, which also corresponds to Dt, a mass about five times larger than the mass of garbage that we send into space. Now calculate the total energy has necessitated the rocket to reach Earth escape velocity, for it will add the kinetic energy that reaches the rocket, along with the gases expelled from the time to to time t, making the resulting adjustments to obtain energy is determined obtain that need 3.35 x10 ^ 15 joules, about one megaton, the energy released by exploding a nuclear bomb. If instead of using this energy to send into space the garbage had been used to heat large ball away and considering having a heat like the human body you specified: 3470 J / (kg C °), assuming that it is organic matter, the rest has been recycled. The garbage would have reached about 600 degrees. Another noteworthy that chapter, is the Oloroscopio. Totally absurd from the physical point of view. The odors are produced by certain substances to the atmosphere off small molecules that then grasp with our sense of smell. That means that to escape the astrological object in question and be captured by the oloroscopio, the molecules must reach the escape velocity of the planet, that means that the heavier are less likely to reach our planet. You like oloroscopio is located on the surface, means that the molecule must reach through our atmosphere from interplanetary space, something like trying to hit with a dart at any point of a football field. Not only that, to reach our atmosphere would join all the molecules that prevent air swarm know its origin.

Posted by admin at 12:27 PM

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