Tuesday, March 29, 2005


Stages of Star Formation. A beautiful image of NGC 2467 that displays the many stages of star formation: young stars at the left, a star still surrounded by gas in the lower left, dark dust lanes in the center as possible sites for new star formation, and a bright wall of gas evaporating due to presence of bright stars at the right. (APOD January 31, 2005). Posted by Hello

History of the Universe

History of the Universe in 200 words or less - an old favorite.

Quantum fluctuation. Inflation. Expansion. Strong nuclear interaction. Particle-antiparticle annihilation. Deuterium and helium production. Density perturbations. Recombination. Blackbody radiation. Local contraction. Cluster formation. Reionization? Violent relaxation. Virialization. Biased galaxy formation? Turbulent fragmentation. Contraction. Ionization. Compression. Opaque hydrogen. Massive star formation. Deuterium ignition. Hydrogen fusion. Hydrogen depletion. Core contraction. Envelope expansion. Helium fusion. Carbon, oxygen, and silicon fusion. Iron production. Implosion. Supernova explosion. Metals injection. Star formation. Supernova explosions. Star formation. Condensation. Planetesimal accretion. Planetary differentiation. Crust solidification. Volatile gas expulsion. Water condensation. Water dissociation. Ozone production. Ultraviolet absorption. Photosynthetic unicellular organisms. Oxidation. Mutation. Natural selection and evolution. Respiration. Cell differentiation. Sexual reproduction. Fossilization. Land exploration. Dinosaur extinction. Mammal expansion. Glaciation. Homo sapiens manifestation. Animal domestication. Food surplus production. Civilization! Innovation. Exploration. Religion. Warring nations. Empire creation and destruction. Exploration. Colonization. Taxation without representation. Revolution. Constitution. Election. Expansion. Industrialization. Rebellion. Emancipation Proclamation. Invention. Mass production. Urbanization. Immigration. World conflagration. League of Nations. Suffrage extension. Depression. World conflagration. Fission explosions. United Nations. Space exploration. Assassinations. Lunar excursions. Resignation. Computerization. World Trade Organization. Terrorism. Internet expansion. Reunification. Dissolution. World-Wide Web creation. Composition. Extrapolation?

(The Annals of Improbable Research)

Saturday, March 26, 2005

Rumi, Once More

THE ALCHEMY OF LOVE

You come to us
from another world

From beyond the stars
and void of space.
Transcendent, Pure,
Of unimaginable beauty,
Bringing with you
the essence of love

You transform all
who are touched by you.
Mundane concerns,
troubles, and sorrows
dissolve in your presence,
Bringing joy
to ruler and ruled
To peasant and king

You bewilder us
with your grace.
All evils
transform into
goodness.

You are the master alchemist.

You light the fire of love
in earth and sky
in heart and soul
of every being.

Through your loving
existence and nonexistence merge.
All opposites unite.
All that is profane
becomes sacred again.

(The Love Poems of Rumi, Deepak Chopra ed.)

Thursday, March 24, 2005


Libyan dunes from above (UniverseToday.com). Posted by Hello

Ergs

In the Sahara, an "erg" refers to a sand dune, not a unit of energy. The above image, taken by ESA's Envisat satellite, is that of two large sand dunes in southwestern Libya. Details about the dunes in the following article:

  • Libya's Ubari and Murzuq Sand Seas

  • Extrasolar Planets

    Up until now, planets around other stars were studied indirectly by means of their gravitational "tug" on their star. However, thanks to NASA's Spitzer Telescope, the light from planets has now, for the first time, been detected directly. This is a great step in the field of extrasolar planetary astronomy! Here is one of the many articles published on the topic in the past few days:

  • First Light Seen from an Extrasolar Planet

  • Saturday, March 19, 2005


    Hubble image of early star formation in the Small Magellanic Cloud (HubbleSite.org). Posted by Hello

    Dark Energy

    The idea of dark energy being responsible for the accelerating expansion of the Universe has been discussed passionately by cosmologists in the past few years. The idea was first introduced by Albert Einstein in the early 20th century as a "cosmological constant" that would allow "his" Universe to remain static. As is well known among physicists, after Hubble's discovery of the expanding Universe, Einstein called the cosmological constant "the greatest blunder of [his] life." Here is a nice little article about our current views of dark energy and the expansion of the Universe:

  • Ripples in Spacetime Could Explain Dark Energy

  • Saturday, March 12, 2005

    Silence

    Breathtaking, inspiring, and expressing an awe-some silence. Some images from Merzouga, one of the most beautiful places in the world:

  • Pictures of the Sahara Desert at Merzouga, Morocco

  • The CMB and Large-Scale Structure

    A couple of people at Caltech, among others, are attempting to use the data from WMAP to probe the large-scale structure of the Universe, something that may prove a bit of a challenge. Brief article from Universe Today:

  • Probing the Large-Scale Structure of the Universe

  • Tuesday, March 08, 2005

    Passing of a Great Physicist

    Hans Bethe, one of the physicists involved with the Manhattan project, has passed away. Bethe won the Nobel Prize in 1967, developed the carbon cycle, and believed strongly in nuclear disarmament. From the New York Times:

  • Hans Bethe, Father of Nuclear Astrophysics, Dies at 98

  • Large Hadron Collider

    With the lowering of the first superconducting magnet into the accelerator tunnel at CERN, the construction of the Large Hadron Collider (LHC) is underway. Protons collided in the LHC will reach energy levels of 14 TeV, with the hope of eventually discovering the Higgs boson. This would be a huge breakthrough for particle physics in confirming the Standard Model! The LHC hopes to be finished by 2007. Here is a short article from PhysOrg:

  • LHC Magnets: The Great Descent

  • Monday, March 07, 2005

    Inflation

    Unfortunately, this has nothing to do with the cosmological version, but rather, that of Dartmouth administrators' salaries. I'll refrain from lengthy commentary but I'm sure you can imagine my thoughts on the matter. From The Dartmouth:

  • College Administrators' Salaries

  • The Apollo Conspiracy

    This is great. The Apollo conspiracy theory followers have been around for a while, but now the ESA intends on putting them in their place with images of the Apollo landing sites from their SMART-1 probe. Of course, should their images be missing evidence of landing artifacts, there are many explanations more likely than that the landings never occurred. Here is the Space.com article, and don't forget to check the Top 10 Apollo Hoax Theories:

  • End of Conspiracy Theories?

  • Sunday, March 06, 2005

    The Wonder of Rumi

    Few people have been able to express their fascination with the divine and their search for unity as Rumi did. Links to more of his poetry can be found to the right.

    THE AWAKENING

    In the early dawn of happiness
    you gave me three kisses
    so that I would wake up
    to this moment of love

    I tried to remember in my heart
    what I’d dreamt about
    during the night
    before I became aware
    of this moving
    of life

    I found my dreams
    but the moon took me away
    It lifted me up to the firmament
    and suspended me there
    I saw how my heart had fallen
    on your path
    singing a song

    Between my love and my heart
    things were happening which
    slowly slowly
    made me recall everything

    You amuse me with your touch
    although I can’t see your hands.
    You have kissed me with tenderness
    although I haven’t seen your lips
    You are hidden from me.

    But it is you who keeps me alive

    Perhaps the time will come
    when you will tire of kisses
    I shall be happy
    even for insults from you
    I only ask that you
    keep some attention on me.

    Sagarmatha: Forehead of the Sky

    Today's APOD image, an old favorite, speaks for itself:

  • Sagarmatha: Mount Everest

  • Friday, March 04, 2005


    Galaxy in Motion. This beautiful galaxy, NGC 1427A, is being pulled toward the center of the Fornax cluster, and the pressure is triggering the pink, star-forming regions toward the top of the galaxy. (From HubbleSite.org) Posted by Hello

    Thursday, March 03, 2005

    Wilber and Consciousness

    A long, intricate article about Wilber's general worldview. Also a good summary of various current areas of psychology and the truths Wilber draws from each one. Wilber is difficult to read, but so important and refreshing:

  • Ken Wilber: An Integral Theory of Consciousness


  • History of the Universe Posted by Hello

    Phase Transitions in the Early Universe

    Although a topic I knew nothing of a mere few weeks ago, phase transitions is an extremely fascinating area of cosmology. By bringing together the Big Bang theory and modern particle physics, this field allows us to probe the earliest formative moments of the Universe. Here is Marcelo's review article on the subject, and while some parts require a certain physics background, it is well worth the read even for non-scientists. Here is the arXiv preprint:

  • Marcelo Gleiser: Phase Transitions in the Universe

  • The Big Bang Part II

    This is one of the anti-Big Bang sites I came across last night, and read with fascination. It's worth a read, because it seems a lot of people feel the same scepticism as this guy.

  • David Pratt: Cosmology and the Big Bang

  • The Theory of Evolution

    I am coming across a lot of this lately, perhaps because of my studying the early Universe, but there are is a shocking number of anti-Big Bang websites out there, where the Big Bang is dismissed as "just a theory" without much observational support. Here is an article in Space.com published today expressing similar frustrations about evolution:

  • Evolution: It's Only a Theory, But One Worth Teaching

  • Wednesday, March 02, 2005

    The Big Bang

    A nice introduction to the Big Bang theory for those not mathematically enclined:

  • WMAP: The Big Bang

  • Cambridge Cosmology: The Hot Big Bang Model


  • At peace. Posted by Hello