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LHC Activado! :) noviembre 20, 2009

Posted by Julio Vannini in Ciencia y Tecnologia.
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Y bien, después de un año de ajustes y reparaciones, los Físicos de Partículas del CERN encendieron exitosamente el Gran Colisionador de Hadrones (LHC) y ha empezado a disparar haces de partículas altamente cargadas. Una vez el dispositivo se encuentre completamente “cargado”, los científicos haran colisionar partículas, tratando de descubrir que fue lo que realmente sucedió al momento del Big Bang… bueno, al menos acercarse lo suficiente en el mundo sub-atómico!

Felicidades!

Primera Vuelta Completada

Para más fotos, entra a este enlace: LHC Restart (2009)

Y si tu eres de los que dicen que el LHC destruirá al Mundo… pon bastante atención a la siguiente imagen:

... ¡y aprovecha para estudiar las cosas de verdad!

T’was the night before Everything diciembre 17, 2008

Posted by Julio Vannini in Actualidad Astronómica, Astronomia y Radio Aficion.
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For all you Cosmologists, Astrophysics and related crazy guys (hehe!), here it comes a poem written by Daniel Weston (?) and posted today in Space.com by jdweston.

T’was the night before, (as if night mattered) and all through the universe,
not a fermion was stirring, not a quark or it’s inverse.

Everything was nothing
yet in a moment later,
the size of a dot,
something – an energy radiator.

Then a phase transition,
caused a cosmic inflation,
that grew exponentially towards,
quark-gluon plasmatiation.

An excess of quarks as it cooled
In the first seconds,
by the time down to a billion K,
an annihilation dance beckons.

Time not to rest still way too hot, just not as hot as before,
particle energies drop, now the physics we can’t ignore.

379,000 light years later
the electrons and then nuclei combine,
Still 11,000 plus degrees C,
now into atoms it finally sublimes.

Then slowly gravitationally attracted,
to nearby each others and more,
two, four, eight, a million,
soon sextillions and decillions galore.

Then speckles and sparkles,
like first falling snow,
gives a depth to space,
and a pattern to the glow.

When out on the edge,
a shutter, and chatter,
from the swirls and the collapses,
out-shed matter.

When, what to the deep
and the deeper should show,
But a star that lasts more
then a fleeting you know.

With a force super lively
and light way too bright,
They shine, fade, expand,
and explode with the might.

More and more the elements
by orbital came,
And they spun in layers,
and periodic by name!

“Take Hydrogen first!
and now Helium! too,
make Lithium and Carbon
to name just a few!

Now, Nitrogen!, Now Oxygen! Now Beryllium and Boron!,
Now more and more and more they flew on!

To the column of the group and rows of little balls,
Now fusion away! Fusion away! Fusion away all!”

And then, in a twinkling of stars,
and a swill of dust danced,
Galactic arms twist to a center,
that disappeared into blackness.

Pulled towards the hole,
with one last drift around,
Down the chimney the light went
with only a slight sound.

Gravity wins or does it really a few great minds must ponder,
Does something leak out and fatten the warp, they now all wonder.

Space-time bends and it twists,
but does it break or falter.
Can we ever know just one
everything equation or another.

With all this and that when you add all the parts,
the mass not enough to hold the whole thing should fall apart.

The numbers not-exact but checked time and time again by the add-ers,
There’s only one answer (maybe), it’s full of Dark matter!

Will it grow forever,
until it’s runs out and lapses,
Just can’t stay the same,
must at least relapses!

But what is the mass balance
and how will we know,
whether times runs forever,
or someday backwards to no.

We measured the shift rates and much to our surprise,
not only just away they all flew but still accelerating, we weren’t very wise.

So we heard it exclaim,
I go ‘perpetually out of sight,
“Happy forever to all,
and to all a very slowly dimming night!”

—30—

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