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CERN: the weapon of Science

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by

Irene Gracia

on 2 February 2014

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Transcript of CERN: the weapon of Science

How many more are left to discover?
Trying to chase the

ABSOLUTE
KNOWLEDGE
of
BIG
things
and ones
TINY
the curiosity of scientists is setting the steps of a large chain of discoveries...
C
N
R
E
onseil
uropéen
echerche

ucléaire
for example
POUR
LA
Located in
Geneva
...
this institution was born in
1954
based on the agreement of 12 countries.

Right now, there are
20
EUROPEAN

MEMBERS
These are some of the mysteries hidden in our Universe...
and almost
12000
from more than
nationalities
100
PHYSICISTS AND ENGINEERS
CERN researches have given us a large number of diverse
TECHNOLOGICAL APPLICATIONS
such as the World Wide Web
and some of the brightest advances in Science
These last were discovered at the greatest particle accelerator of all history:
LARGE HADRON COLLIDER
but, how does it work?
to accelerate a particle =

changing it's speed
When the proton is attracted by the negative electrode, it experiments a positive acceleration.
The LHC uses the same method, accelerating protons in
opposite directions
with dozens of charged plaques and powerful superconducting electromagnets...
A COMPLEX INFRASTRUCTURE...
27
km
in circumference
100
underground
meters
... AND SOME GUINESS RECORDS
The Universe's largest vacuum
The Earth's fastest circuit

Internal pressure of 10-13 atm.
11.245 laps/second
Over 36000 collisions/min
The Universe's coldest place
Temperature: -271,3 ºC
The world's most powerful computer
Thousands of GB compiled every year
TO ALMOST THE SPEED OF LIGTH
(99,99%)
These particles with
HIGH ENERGY
are made to
COLLIDE
against each others
Thanks to:
E=mc²
the
ENERGY
turns into
MASS
and
a lot of
NEW PARTICLES
appear
Finally, the "pictures" of the collision are taken by the detectors...
Each line is a single particle
and analyzed by the physicists.
?
But why...?
ALREADY ANSWERED...
THE HIGGS BOSON
73%
DARK ENERGY
23%
DARK MATTER
is visible
Only
4
to us
%
Recipe of the Universe:
WHAT'S THE UNIVERSE MADE OF?
Why
MATTER
beat
ANTIMATTER?
UNIVERSE
STRUCTURE OF THE
PRIMITIVE
predicts the existence of
1
DIMENSIONS
1
10 spacial + 1 temporal
STRING THEORY
ALICE
A LARGE ION COLLIDER EXPERIMENT
2 beams of
LEAD

WHY DO PARTICLES HAVE THE MASS THEY HAVE?
WHAT IS MASS?
are made to collide.
Quark-gluon plasma
Lead nucleus
Lead nucleus
TINY DROPLET
THEN APPEARS A

OF A
QUARK-GLUON PLASMA...
...WHICH EXPANDS FOR LESS THAN A THOUSANDTH OF A SECOND
NUCLEI
Full transcript