The Universe is a strange place
About the Lecture Perhaps the universe is not so much strange as brimming with lovely paradox. The search for such beauty seems to lie at the heart of Frank Wilczek’s work. Twentieth century physics, from Einstein through Wilczek’s own Nobel Prize-winning efforts, involves demonstrating the existence of a topsy-turvy reality: for instance, that such sub-atomic particles as quarks and gluons, which have little or no mass, “orchestrate themselves into not just protons and neutrons but you and me,” according to Wilczek. “How is it possible to construct heavy objects out of objects that weigh nothing?,” he asks. Only by “creating mass out of pure energy.” These particles are essentially “excitations in otherwise empty space.” Says Wilczek: “That suggests something …beautiful and poetic: the masses of particles are not like, or similar to or metaphorically suggested by—they are the tones or frequencies of vibration patterns in dynamical voids.” The theory of quarks and gluons and the strong interaction accounts quantitatively for “the mass of protons, neutrons and ultimately you and me and everything around us.” But physics has not yet squared away all aspects of the universe. Wilzcek says that “in cosmology, we meet our match, and don’t know what’s going on.” This is because scientists can’t account for much of the mass in the cosmos. 70% of this mass is in “dark energy,” which is pushing the universe apart. Wilczek hopes that explanations for the dark stuff will emerge through improving equations, unifying theories of different interactions and extending their symmetries. “Beautifying equations leads not to ugly consequences but beautiful surprises,” he concludes.
About
the
Lecture
Perhaps
universe
is
not
so
much
strange
as
brimming
with
lovely
paradox.
The
search
for
such
beauty
seems
to
lie
at
heart
of
Frank
Wilczek’s
work.
Twentieth
century
physics
from
Einstein
through
own
Nobel
Prize-winning
efforts
involves
demonstrating
existence
topsy-turvy
reality:
instance
that
sub-atomic
particles
quarks
and
gluons
which
have
little
or
no
mass
“orchestrate
themselves
into
just
protons
neutrons
but
you
me
according
Wilczek.
“How
it
possible
construct
heavy
objects
out
weigh
nothing
he
asks.
Only
by
“creating
pure
energy.”
These
are
essentially
“excitations
in
otherwise
empty
space.”
Says
Wilczek:
“That
suggests
something
…beautiful
poetic:
masses
like
similar
metaphorically
suggested
by—they
tones
frequencies
vibration
patterns
dynamical
voids.”
theory
strong
interaction
accounts
quantitatively
“the
ultimately
everything
around
us.”
But
has
yet
squared
away
all
aspects
universe.
Wilzcek
says
“in
cosmology
we
meet
our
match
don’t
know
what’s
going
on.”
This
because
scientists
can’t
account
cosmos.
70
this
“dark
energy
pushing
apart.
Wilczek
hopes
explanations
dark
stuff
will
emerge
improving
equations
unifying
theories
different
interactions
extending
their
symmetries.
“Beautifying
leads
ugly
consequences
beautiful
surprises
concludes.
Channels:
Lectures In Astronomy
Cosmology
Major questions in astronomy
Added: 715 days ago by
deek
Runtime: 00:01 |
Views: 1208 |
Comments: 1
Neurological Health of Atheism TRUMPS the Psychosis of Faith 012210.mov
More scientific evidence that suggests Faith in Imaginary Friends aka GOD is a creation of a Delusions Accepting malfunctioning Brains. Emotions are created in the BRAIN
Neurological
Health
of
Atheism
TRUMPS
the
Psychosis
of
Faith
Channels:
Cosmic Debris
Added: 726 days ago by
deek
Runtime: 01:00 |
Views: 406 |
Comments: 3
Time is flying by on this busy, crowded planet as life changes and evolves from second to second. And yet the arc of human lifespan is getting longer: 65 years is the global average way up from just 20 in the Stone Age. Modern science, however, provides a humbling perspective. Our lives indeed the life span of the human species are just blips compared to the age of the universe, at 13.7 billion years and counting. It now seems that our entire universe is living on borrowed time. How long it can survive in any form depends on whether Stephen Hawking's theory checks out.
Channels:
Cosmology
Major questions in astronomy
Added: 766 days ago by
lonewolf
Runtime: 01:00 |
Views: 191 |
Comments: 0
The Ascent of Man - 10: World within World 5/5
Part 1: http://www.youtube.com/watch?v=h2cqMDBOrGI Playlist: http://www.youtube.com/view_play_list?p=A3FC4D7ED67F4B1A The inspiration for Carl Sagans 1980 series, Cosmos, Jacob Bronowskis 1973 series, The Ascent of Man, alludes to and seeks to somewhat challenge the notion of some of Charles Darwins conclusions in The Decent of Man. Over the course of thirteen episodes, Bronowski travelled around the world in order to trace the development of human society through its understanding of science. Jacob Bronowski was one of a small group of men and women in any age who find all of human knowledge-the arts and sciences, philosophy and psychology-interesting and accessible. He was not confined to a single discipline, but ranged over the entire panorama of human learning. His book and television series, The Ascent of Man, are a superb teaching tool and a remarkable memorial; they are, in a way, an account of how human beings and human brains grew up together. Carl Sagan, The Dragons of Eden Part 10: World within World Bronowski explores the chemical world: from the periodic table to quantum mechanics.
Jacob
bronowski
carl
sagan
cosmos
Charles
Darwin
history
methodology
science
understanding
knowledge
culture
evolution
intelligence
the
ascent
decent
of
man
scientist
Channels:
The Astronomers
Added: 820 days ago by
deek
Runtime: 10:49 |
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The Ascent of Man - 11: Knowledge or Certainty 4/5
Part 1: http://www.youtube.com/watch?v=_1nnPXh2f1A Playlist: http://www.youtube.com/view_play_list?p=A3FC4D7ED67F4B1A The inspiration for Carl Sagans 1980 series, Cosmos, Jacob Bronowskis 1973 series, The Ascent of Man, alludes to and seeks to somewhat challenge the notion of some of Charles Darwins conclusions in The Decent of Man. Over the course of thirteen episodes, Bronowski travelled around the world in order to trace the development of human society through its understanding of science. Jacob Bronowski was one of a small group of men and women in any age who find all of human knowledge-the arts and sciences, philosophy and psychology-interesting and accessible. He was not confined to a single discipline, but ranged over the entire panorama of human learning. His book and television series, The Ascent of Man, are a superb teaching tool and a remarkable memorial; they are, in a way, an account of how human beings and human brains grew up together. Carl Sagan, The Dragons of Eden Part 11: Knowledge or Certainty Bronowski explores the impossibility of absolute certainty dictated by the laws of quantum mechanics .
Jacob
bronowski
carl
sagan
cosmos
Charles
Darwin
history
methodology
science
understanding
knowledge
culture
evolution
intelligence
the
ascent
decent
of
man
scientist
Channels:
The Astronomers
Added: 820 days ago by
deek
Runtime: 10:12 |
Views: 405 |
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Structure of the Atom 3 The Rutherford Model
Structure
of
the
Atom
Rutherford
Model
Channels:
The Astronomers
Added: 820 days ago by
deek
Runtime: 09:10 |
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Towards a Spin Foam Model of Quantum Gravity
NOTE: pdf link for transparencies- http://math.ucr.edu/home/baez/loops05/loops05.pdf Probably not everyones cup of tea. A clip from a lecture by John Baez in conjunction with the LOOPS 'O5 series by the Max Planck Institute of Gravitation (Albert Einstein Institute) regarding a proposal for quantum gravity (the clip appears to start at page 14 of the transparencies). Date- 11th Oct 05. Source- http://math.ucr.edu/home/baez/loops05/ LOOPS '05- http://loops05.aei.mpg.de/ 'Spin foam models include several different classes of physical theories: lattice gauge theories, dynamical triangulation models of quantum gravity, "chain mail" quantum field theories, and topological string theories. Is there a spin foam model of quantum gravity in 4 dimensions? To address this question, we review recent work on causal dynamical triangulations and the renormalization group. This suggests that quantum gravity is a well-defined theory with the curious property that spacetime is effectively 4-dimensional at large distance scales, but 2-dimensional at very short distance scales. This is just what one might expect from a spin foam model, since spacetime is fundamentally 2-dimensional in these theories. We discuss properties a spin foam model should have in order to approximate general relativity at large distance scales.'
quantum
gravity
general
relativity
grand
unified
theory
of
everything
GUT
TOE
john
baez
Channels:
Major questions in astronomy
Added: 821 days ago by
deek
Runtime: 09:43 |
Views: 216 |
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UC Berkeley's Raphael Bousso presents a friendly introduction to the ideas behind the holographic principle, which may be very important in the hunt for a theory of quantum gravity. Series: "Lawrence Berkeley National Laboratory Summer Lecture Series" [3/2006] [Science] [Show ID: 11140]
Raphael
Bousso
holographic
theory
of
quantum
gravity
science
Channels:
Major questions in astronomy
Added: 821 days ago by
deek
Runtime: 54:34 |
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The Library Of Alexandria - Best Of Carl Sagan's Cosmos (7)
The Library Of Alexandria - Best Of Carl Sagan's Cosmos (Part 7). --- Subscribe to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/SagansCosmos • http://www.youtube.com/FFreeThinker --- BEST OF CARL SAGAN'S "COSMOS": 1) 10 Years After: Carl Sagan & Ann Druyan Reflect: http://www.youtube.com/watch?v=leTNfwfH0Jc 2) Lost Between Immensity And Eternity: http://www.youtube.com/watch?v=vIVsDg6U0LU 3) The Realm Of The Galaxies: http://www.youtube.com/watch?v=1axoV6HhWfI 4) Our Galaxy, The Milky Way: http://www.youtube.com/watch?v=eOazBTHzRYA 5) Our Solar System: http://www.youtube.com/watch?v=iBqjob-UVeo 6) Eratosthenes And The Round Earth Model: http://www.youtube.com/watch?v=en5UKtcNujI 7) The Library Of Alexandria: http://www.youtube.com/watch?v=vVQs4B2jAW0 8) A Short History Of The Universe: http://www.youtube.com/watch?v=7n2r0qOxJ6k 9) Artificial And Natural Selection: http://www.youtube.com/watch?v=i3uToVWZkWM 10) The Cosmic Year: http://www.youtube.com/watch?v=yFqbm_94nTM 11) Tree Of Life - 4 Billion Years Of Evolution: http://www.youtube.com/watch?v=KF0UECN4ndA 12) The Miracle Of Life: http://www.youtube.com/watch?v=TOyojWeOYNA 13) DNA - The Common Basis Of Life: http://www.youtube.com/watch?v=ecmuvjSykf8 14) Abiogenesis The Origin Of Life: http://www.youtube.com/watch?v=yet1xkAv_HY 15) Astronomy vs Astrology: http://www.youtube.com/watch?v=ImaQS9NJ0nI 16) Pictures In The Sky: http://www.youtube.com/watch?v=iwCAwc4bge4 17) Ancient Astronomy: http://www.youtube.com/watch?v=H-5dwJwau1Y 18) Triumph Of Modern Science Over Medieval Superstition: http://www.youtube.com/watch?v=8lfmRqT-B_c 19) The Mysterious Tonguska Event: http://www.youtube.com/watch?v=irVof7adq4s --- Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method. http://www.carlsagan.com .
The
Library
Of
Alexandria
Egypt
Greece
Ancient
History
Best
Carl
Sagan
Sagans
Cosmos
Episode
Scientists
Science
Astronomy
Astronomer
Astrophysics
Universe
Education
SETI
Hubble
Images
Big
Bang
Space
Solar
System
Planets
Physics
Origin
Life
Human
Evolution
Lecture
Videos
Series
Einstein
Theory
Relativity
Time
Dilation
Albert
Black
Holes
Dark
Matter
Energy
Milky
Way
Galaxy
Atoms
Quarks
Speed
Light
Gravity
Channels:
The Astronomers
Added: 824 days ago by
deek
Runtime: 10:59 |
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Episodio 3: La armonía de los mundos Contenido: Astronomía vs astrología Ptolomeo y el modelo geocéntrico Johannes Kepler y Tycho Brahe Las Leyes de Kepler. Fuente: http://es.wikipedia.org/wiki/Cosmos:_Un_viaje_personal Episode 3: The Harmony of the Worlds Contents: 1. Opening 2. Astronomers vs. Astrologers Astronomy vs. astrology 3. Astrology Careful observations, fuzzy thinking and pious fraud. 4. Laws of Nature 5. Constellations Constellations and ancient astronomy 6. Astronomers Anasazian ceremonial calendar 7. Ptolemy/Copernicus Ptolemy and the geocentric world view 8. Johannes Kepler 9. Kepler and Tycho Brahe 10. Kepler's Laws 11. The Somnium The first Science Fiction book: The Dream Source: http://en.wikipedia.org/wiki/Cosmos:_A_Personal_Voyage
Cosmos
Carl
Sagan
English
Español
Português
Deutsch
Français
Italiano
Episode
The
Harmony
of
Worlds
subtitulos
subtitulado
Armonía
de
los
mundos
Astronomía
vs
Astrología
galaxias
estrellas
planetas
Kepler
Brahe
Astronomy
Astrology
Stern
Subtitles
Channels:
The Astronomers
Added: 824 days ago by
deek
Runtime: 03:47 |
Views: 308 |
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Not yet rated
Triumph Of Modern Science Over Medieval Superstition
Johannes Kepler And The Triumph Of Modern Science Over Medieval Superstition - Best Of Carl Sagan's Cosmos (Part 18). Subscribe to Science & Reason: • http://www.youtube.com/SagansCosmos • http://www.youtube.com/Best0fScience • http://www.youtube.com/FFreeThinker BEST OF CARL SAGAN'S "COSMOS": 1) 10 Years After: Carl Sagan & Ann Druyan Reflect: http://www.youtube.com/watch?v=leTNfwfH0Jc 2) Lost Between Immensity And Eternity: http://www.youtube.com/watch?v=vIVsDg6U0LU 3) The Realm Of The Galaxies: http://www.youtube.com/watch?v=1axoV6HhWfI 4) Our Galaxy, The Milky Way: http://www.youtube.com/watch?v=eOazBTHzRYA 5) Our Solar System: http://www.youtube.com/watch?v=iBqjob-UVeo 6) Eratosthenes And The Round Earth Model: http://www.youtube.com/watch?v=en5UKtcNujI 7) The Library Of Alexandria: http://www.youtube.com/watch?v=vVQs4B2jAW0 8) A Short History Of The Universe: http://www.youtube.com/watch?v=7n2r0qOxJ6k 9) Artificial And Natural Selection: http://www.youtube.com/watch?v=i3uToVWZkWM 10) The Cosmic Year: http://www.youtube.com/watch?v=yFqbm_94nTM 11) Tree Of Life - 4 Billion Years Of Evolution: http://www.youtube.com/watch?v=KF0UECN4ndA 12) The Miracle Of Life: http://www.youtube.com/watch?v=TOyojWeOYNA 13) DNA - The Common Basis Of Life: http://www.youtube.com/watch?v=ecmuvjSykf8 14) Abiogenesis The Origin Of Life: http://www.youtube.com/watch?v=yet1xkAv_HY 15) Astronomy vs Astrology: http://www.youtube.com/watch?v=ImaQS9NJ0nI 16) Pictures In The Sky: http://www.youtube.com/watch?v=iwCAwc4bge4 17) Ancient Astronomy: http://www.youtube.com/watch?v=H-5dwJwau1Y 18) Triumph Of Modern Science Over Medieval Superstition: http://www.youtube.com/watch?v=8lfmRqT-B_c 19) The Mysterious Tonguska Event: coming soon Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method. • http://www.carlsagan.com Johannes Kepler (1571-1630) was a German mathematician, astronomer and astrologer, and key figure in the 17th century scientific revolution. He is best known for his eponymous laws of planetary motion, codified by later astronomers based on his works "Astronomia nova", "Harmonices Mundi", and "Epitome of Copernican Astrononomy". They also provided one of the foundations for Isaac Newton's theory of universal gravitation. During his career, Kepler was a mathematics teacher at a seminary school in Graz, Austria, an assistant to astronomer Tycho Brahe, the court mathematician to Emperor Rudolf II, a mathematics teacher in Linz, Austria, and an adviser to General Wallenstein. He also did fundamental work in the field of optics, invented an improved version of the refracting telescope (the Keplerian Telescope), and helped to legitimize the telescopic discoveries of his contemporary Galileo Galilei. Kepler lived in an era when there was no clear distinction between astronomy and astrology, but there was a strong division between astronomy (a branch of mathematics within the liberal arts) and physics (a branch of natural philosophy). • http://en.wikipedia.org/wiki/Johannes_Kepler .
Johannes
Kepler
Triumph
Of
Modern
Science
Over
Medieval
Superstition
Best
Carl
Sagan
Sagans
Cosmos
Nicolaus
Copernicus
Claudius
Ptolemaeus
Ptolemy
Martin
Luther
Newton
Tycho
Brahe
Galileo
Galilei
Maulbronn
Tübingen
Graz
Scientists
Astronomy
Astronomer
Astrophysics
Education
Educational
SETI
Big
Bang
Space
Galaxies
Solar
System
Planets
Physics
Lecture
Videos
Series
Einstein
Theory
Relativity
Black
Holes
Dark
Matter
Energy
Milky
Way
Galaxy
Atoms
Speed
Light
Gravity
Channels:
The Astronomers
Added: 824 days ago by
deek
Runtime: 10:59 |
Views: 521 |
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PRAISE THE LAWS (of physics) - Ordono Mundi
One time fellow traveller welcome to the ministry of tspace time and the church of great stdy , I am the very reverend Ordo mundi humble servant of universe, maintainer of the laws of physic and student of the on ething greater than I am. great googly moogly
PRAISE
THE
LAWS
of
physics
Ordono
Mundi
Channels:
Ordono Mundi
Added: 824 days ago by
deek
Runtime: 09:54 |
Views: 373 |
Comments: 0
Ordono Mundi - In the beginning
Fellow travellers , welcome, to the middle of time, join us at the astronomers.org To rid the world of ignorant savages, spread the facts and travel the eternal road of infinite study
Fellow
travellers
welcome
to
the
middle
of
time
join
us
at
astronomers.org
rid
world
ignorant
savages
Channels:
Ordono Mundi
Added: 824 days ago by
deek
Runtime: 07:03 |
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Stephen Hawking discusses his stint on 'The Simpsons'
Stephen Hawking discusses his first stint on The Simpsons in the episode "They Saved Lisa's Brain." and praises the show to be the best thing on American television.
stephen
hawking
the
simpsons
homer
bart
lisa
marge
maggie
mensa
fox
family
guy
brief
history
of
time
universe
scientist
Channels:
The Astronomers
Added: 825 days ago by
deek
Runtime: 01:53 |
Views: 451 |
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Stephen Hawking - Campus Party speech (2006)
Prof Stephen Hawking speech to Campus Party 2006 Hawking's principal fields of research are theoretical cosmology and quantum gravity. In 1971, in collaboration with Sir Roger Penrose, he proved the first of many singularity theorems; such theorems provide a set of sufficient conditions for the existence of a singularity in space-time. This work showed that, far from being mathematical curiosities which appear only in special cases, singularities are a fairly generic feature of general relativity. Hawking also suggested that, after the Big Bang, primordial or mini black holes were formed. With Bardeen and Carter, he proposed the four Laws of black hole mechanics, drawing an analogy with thermodynamics. In 1974, he calculated that black holes should thermally create and emit subatomic particles, known as Hawking radiation, until they exhaust their energy and evaporate. In collaboration with Jim Hartle, Hawking developed a model in which the Universe had no boundary in space-time, replacing the initial singularity of the classical Big Bang models with a region akin to the North pole; while one cannot travel North of the North pole, there is no boundary there. While originally the no-boundary proposal predicted a closed Universe, discussions with Neil Turok led to the realization that the no-boundary proposal is consistent with a Universe which is not closed also.
Stephen
Hawking
university
of
cambridge
2006
special
events
campus
party06
united
kingdom
technology
oxford
science
Channels:
The Astronomers
Added: 825 days ago by
deek
Runtime: 03:49 |
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Join NASA on the Kepler Mission as this traveling telescope images the light from faraway stars to locate Earth-sized and smaller planets. Using the transit method, the Kepler telescope measures the brightness of a star and uses the data to predict habitable zones.
Education
NASA
eClips
NIA
Launchpad
high
school
secondary
eclipse
transit
habitable
zones
telescopes
orbit
planets
stars
Kepler
CCD
field
of
view
Channels:
Major questions in astronomy
Added: 831 days ago by
adminn
Runtime: 05:15 |
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Pope Bans Copernicus Theory of Sun-Centered Universe
The Catholic Church listed Copernicus' "De revolutionibus" on its Index of Prohibited Books, thus prohibiting its publication and denying the physical reality of the earth's movement around the sun. Andreas Cellarius circumvented the ban by depicting the theory in the lavish and ingenious drawings of "Harmonia macrocosmica", the most beautiful and famous Celestial Atlas. See Perfect Re-creations of Cellarius' works and the Church-banned Mercator World Map at DiscoveryEditions.com/Heresy...
News
Pope
Catholic
Church
Copernicus
Cellarius
celestial
map
star
chart
index
of
prohibited
books
heresy
Channels:
The Astronomers
Added: 831 days ago by
adminn
Runtime: 01:19 |
Views: 382 |
Comments: 0
Galileo Galilei Greek Subtitles
Channels:
The Astronomers
Added: 831 days ago by
adminn
Runtime: 07:13 |
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Earth seems to have its first fuzzy photos of four alien planets outside our solar system. Three of them orbit the same distant star, Fomalhaut. The fourth circles a different star.
Earth
seems
to
have
its
first
fuzzy
photos
of
four
alien
planets
outside
our
solar
system.
Three
them
orbit
the
same
Channels:
Extragalactic astronomy
Observational astronomy
Major questions in astronomy
Added: 1172 days ago by
Astro
Runtime: 01:25 |
Views: 588 |
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How we calculate the age of the earth
Earth: How scientists can calculate the age of the earth
Earth:
How
scientists
can
calculate
the
age
of
earth
Channels:
The Astronomers
Planetary science
Added: 1183 days ago by
Astro
Runtime: 09:03 |
Views: 538 |
Comments: 1