منابع مشابه
Stoking Ground Zero health worries
Following the attack of September 11th, public opinion polls showed a remarkable leap in Americans’ trust of their government. Some in New York City seem to be carving out an exception to that trust when it comes to the US Environmental Protection Agency. Fanned by some alarming news reports, there are doubts about whether the EPA has been telling the truth about the New York City air. In the w...
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The HIV/AIDS pandemic has so far caused about 35 million deaths, while 34 million individuals currently live with HIV. 2 Even if this will have no impact on the course of the epidemic, understanding the factors that allowed the successful emergence of HIV-1 is important, first as a moral obligation towards the victims, but also to draw lessons that could ultimately help mankind avoid facing sim...
متن کاملThe dripping faucet revisited.
High accuracy experimental results on the nonlinear dynamical behaviour of a dripping faucet are presented. The distribution functions for droplet sizes and drip intervals together with return maps are studied for various dripping rates. Increasing this control parameter, chaotic behaviour is obtained and discussed. (c) 1996 American Institute of Physics.
متن کاملDripping of a crystal.
Dripping is usually associated with fluid motion, but here we describe the analogous phenomenon of a 3He crystal growing and melting under the influence of surface tension and gravity. The pinch-off of the crystal is described by a purely geometric equation of motion, viscous dissipation or inertia being negligible. In analogy to fluid pinch-off, the minimum neck radius R{n} goes to zero like a...
متن کاملThe chaotic dripping faucet
We propose a simple model for the chaotic dripping of a faucet in terms of a return map constructed by analyzing the stability of a pendant drop. The return map couples two classical normal forms, an Andronov saddle-node bifurcation, and a Shilnikov homoclinic bifurcation. The former corresponds to the initiation of the instability when the drop volume exceed a critical value set by the balance...
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ژورنال
عنوان ژورنال: Intermédialités: Histoire et théorie des arts, des lettres et des techniques
سال: 2003
ISSN: 1705-8546,1920-3136
DOI: 10.7202/1005452ar