Journey Through the Universe: From Birth to End
BUILD YOUR OWN UNIVERSE
SESSION INTRODUCTION
Hubble Space Telescope image of a cluster of galaxies. Some appear as they did 12 billion years ago.
Image courtesy of NASA/ESA/STScI.
THE FIRST FEW SECONDS
Fundamental Particles
found in threes, make up
the matter around us
carry electric
charge in circuits
particle of light
antimatter
partner of
the electron
interact very
little with
normal matter
T = >100,000,000,000
o
C
THE FIRST FEW SECONDS
T = 3,000,000,000
o
C
down quark
down quark
down quark
up quark
up quark
up quark
proton
neutron
THE FIRST TWO ELEMENTS
…to make
helium-4 + two
extra protons
add another
helium-3…
…to make
helium -3
add a proton to the
new neutron…
…to make
deuterium
proton
becomes a
neutron: beta
decay
add another
proton…
THE BIRTH OF NEUTRAL ATOMS
charge = -1
charge = +1
overall charge = 0
overall charge = 0
Cosmic background radiation imaged by the Planck satellite.
Image courtesy of ESA/NASA
TIME = 100 MILLION YEARS
Elements heavier than helium are
made by fusion in the heart of stars.
Image courtesy of ESA.
THE END
Explore the fascinating cosmic journey from the birth of fundamental particles to the creation of elements in stars, leading to the formation of galaxies and the birth of neutral atoms. Witness the evolution of our universe in captivating images and descriptions, unraveling the mysteries of space and time.
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Presentation Transcript
SESSION INTRODUCTION Hubble Space Telescope image of a cluster of galaxies. Some appear as they did 12 billion years ago. Image courtesy of NASA/ESA/STScI.
THE FIRST FEW SECONDS T = >100,000,000,000oC Fundamental Particles positron neutrino up quark electron down quark photon antimatter partner of the electron particle of light found in threes, make up the matter around us carry electric charge in circuits interact very little with normal matter
THE FIRST FEW SECONDS T = 3,000,000,000oC up quark up quark proton down quark neutron down quark down quark up quark
THE FIRST TWO ELEMENTS 2 He 4.0026 1 to make deuterium H 1.01 add another helium-3 to make helium -3 add another proton proton becomes a neutron: beta decay add a proton to the new neutron to make helium-4 + two extra protons
THE BIRTH OF NEUTRAL ATOMS charge = +1 charge = -1 Cosmic background radiation imaged by the Planck satellite. Image courtesy of ESA/NASA overall charge = 0 overall charge = 0
TIME = 100 MILLION YEARS Elements heavier than helium are made by fusion in the heart of stars. Image courtesy of ESA.
