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La familia de Jonny Hickey un niño de ocho años, aislado y solitario debido al autismo que sufre, adoptó a una cachorra y con ello cambio la vida del pequeño Jonny y de la afortunada perrita Xena.
Poco antes que la perrita entrara en la vida del pequeño Jonny, el cachorro fue llevado a un refugio de animales.Con esfuerzo y dedicación, los trabajadores del refugio lograron reanimarla. Su recuperación fue progresiva y sorprendente a pesar de el estado en el que se encontraba. Había sido devorada por las pulgas y no podía caminar.
El día que Linda la mamá de jonny recogió a Xena del refugio para llevarla a casa, pasó por la escuela de Jonny. El pequeño dibujó una sonrisa inmensa en su rostro.Pasados unos unos pocos meses, la madre del niño no tiene dudas de que el niño nunca ha sido más feliz. Empezó a hablar, cantar y demostrar, por primera vez, el interés por el mundo que le rodea. La familia ha gastado miles de dólares en la terapia para Jonny, que después de todo podría ser sustituido por otro remedio, mucho más simple y más barato: la amistad leal que sólo un perro podría ofrecer. -
Site-specific cut paper installations by Mia Pearlman
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Este bombero iraní, Omid Abassi, salvó a esta niña de 9 años cediéndole su máscara de oxígeno. Poco después sufrió una muerte cerebral y sus órganos salvaron la vida de otras 4 personas.
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“The scariest memory of growing up in the Virgin Islands was Hurricane Marilyn in 1995. My entire house collapsed on top of my family and we were homeless for a week.”
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Planck Time
What is the smallest unit of time you can conceive? A second? A millisecond? Hard to say seeing as how time is relative. Under the right circumstances, hours can fly by and seconds can feel like a lifetime. But unfortunately for physicists, time is not something that can be delt with so philosophically. And since they deal with cosmological forces both infinitesimally large and small, they need units that can objectively measure them. When it comes to dealing with the small, Planck Time is the measurement of choice. Named after German physicist Max Planck, the founder of quantum theory, a unit of Planck time is the time it takes for light to travel, in a vacuum, a single unit of Planck length. Taken together, they part of the larger system of natural units known as Planck units.
Originally proposed in 1899 by German physicist Max Planck, Planck units are physical units of measurement defined exclusively in terms of five universal physical constants. These are the Gravitational constant (G), the Reduced Planck constant (h), the speed of light in a vacuum (c), the Coulomb constant(ke or k), and Boltzmann’s constant (kB, sometimes k). Each of these constants can be associated with at least one fundamental physical theory: c with special relativity, G with general relativity and Newtonian gravity, with quantum mechanics, with electrostatics, and kB with statistical mechanics and thermodynamics. They were invented as a means of simplifying the particular algebraic expressions appearing in theoretical physics, especially in quantum mechanics.
Ultimately, Planck time is derived from the field of mathematical physics known as dimensional analysis, which studies units of measurement and physical constants. The Planck time is the unique combination of the gravitational constant G, the relativity constant c, and the quantum constant h, to produce a constant with units of time. They are often semi-humorously referred to by physicists as “God’s units” because eliminate anthropocentric arbitrariness from the system of units, unlike the meter and second, which exist for purely historical reasons and are not derived from nature. Some challenges to Planck’s Time have been mounted. For example, in 2003 during the analysis of the Hubble Space Telescope Deep Field images, some scientists speculated that where there are space-time fluctuations on the Planck scale, images of extremely distant objects should be blurry. The Hubble images, they claimed, were too sharp for this to be the case. Other scientists disagreed with this assumption however, with some saying the fluctuations would be too small to be observable, others saying that the speculated blurring effect that was expected was off by a very large magnitude. A unit of Planck Time can be expressed (in the third picture).
Read more: http://www.universetoday.com/79418/planck-time/#ixzz2U4Nz4Ov1
