An interesting presentation on CMB

1. Hello…!

2. “Cosmic Microwave Background.”
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⋆ The Cosmic Microwave Background
radiation, or CMB for short, is a faint
glow of light that fills the universe,
falling on Earth from every direction
with nearly uniform intensity.

3. When did CMB formed?
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The CMB was created at a time in cosmic
history called the ‘Recombination Era’. The
universe had cooled to a temperature of
about 2,700 degrees Celsius, cool enough for
electrons and protons to “recombine” into
hydrogen atoms.

4. It is the residual heat of creation of the afterglow
of the big bang streaming through space, these last
14 billion years like the heat
from a sun warmed rock, reradiated at night.

5. “
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⋆ On May 20, 1964, American radio
astronomers Robert Wilson and Arno
Penzias discovered
the cosmic microwave background
radiation (CMB), the ancient light
that began saturating the universe
380,000 years after its creation.
Brains Behind CMB,

6. How does it really looks…
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7. You don’t need to keep this slide in your presentation. It’s only here to serve you as a design guide if you
need to create new slides or download the fonts to edit the presentation in PowerPoint®
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Where Is CMB in big bang Expansion..
You can’t see
me.

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⋆ The CMB is the oldest light we can see
the farthest back both in time and
space that we can look.
⋆ This light set out on its journey more
than 14 billion years ago, long before
the Earth or even our galaxy existed.
What is it Exactly…

9. ⋆ When this cosmic background light was released
billions of years ago, it was as hot and bright as the
surface of a star.
⋆ The expansion of the universe, however, has
stretched space by a factor of a thousand.
⋆ Since then The wavelength of the light has
stretched with it into the microwave part of the
electromagnetic spectrum.
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10. How is it now ?
⋆ The CMB has cooled to its present day
temperature
⋆ something the glorified thermometers
known as radio telescopes register at about
2.73 degrees above absolute zero.
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11. Placeyour screenshot here
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⋆ Anecdote that you can “see” the CMB
radiation in the noise of your analog TV
(if you still have one).
⋆ About 1% of the noise betweenthe
channels of your TV programme are
CMB
⋆ The same is true for FM radios, whenthe
radio is tuned to a frequency that is
betweenstations, part of the hiss that
you hear, called “white noise”,is leftover
radiation from the Big Bang some 13.7
billion years ago.

12. ⋆ The most important thing
accomplished by the ultimate
discovery of the 3 °K radiation
background (Penzias and Wilson,
1965) was to force all of us to
take seriously the idea that
there was an “early universe”.
⋆ — Steven Weinberg
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Thanks!
ANY QUESTIONS?
You can find me at @Balveer C L &
balveer.01c@gmail.com

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