Arquivo para June 13th, 2018

Can a butterfly wing strike cause a tornado?

13 Jun

The so-called butterfly effect, arose from an article by E. Lorenz in 1975 in an atmospheric forecasting journal and for this reason was a long time concealed as a “phenomenon”.
The first question is this, there is even this article, because it is so little mentioned even more in Brazil since the name of the country appears in the title: “Predictability: Does the Flap of a Butterfly’s Wings in Brazil Set off the Tornado in Texas? “, yes the article does exist.
The other two questions posed by Lorenz himself are: if a single butterfly could generate a tornado, the earlier or subsequent wing beats could also cause the millions of other butterflies as well, and if they could cause they could also avoid them.
What Lorenz proposed in general terms + and that minuscule perturbations do not increase or decrease the frequency of events like tornados, the question he puts in his article is that the immediate influence of a single butterfly can make the presence of a tornado evolve in two different situations, being able in some very early instance to decide its presence or not.
This small event can be fundamental, linked to others, able to modify the regime of the winds and the temperature in a vast region, would spend hours and the meeting of the masses of air can provoke a heavy rain in areas that before was determined sun.
Hence Poincare enunciated in 1908 as “sensitivity of the initial conditions,” but it must be said that the formulation of Lorenz’s chaotic systems distanced itself much from what is called nonlinear systems in mathematics, from the idea that linear is the most common, while unstable or chaotic are unconventional.
Most systems are unstable, and this is fundamental, Heisenberg of whom we spoke in our previous post, said: “quantum physics has defeated the causality and certainty that stable and predictable systems offer us, its phrase is famous:” Physics quantum provided the definitive refutation of the principle of causality. ”
Small actions, in human systems, can also cause huge differences and lead human systems to stability or not