Black Widow Pulsars: The Vengeful Corpses of Stars
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Jan. 22, 2014 Dr. Roger Romani (Stanford University) NASA's Fermi Gamma-ray Space Telescope has revealed a violent high-energy universe full of stellar explosions, black hole jets, and pulsing stars. These cosmic objects are often faint when observed with visible light, but glow bright with gamma rays. Dr. Romani describes the quest to discover the true nature of the most puzzling of these gamma-ray sources. Several turn out to be a kind of bizarre star corpse called a 'black widow' pulsar.
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no uhms, ers, coughs or or er or or or repetitive filling, other ticks or irritating 'get back to that later's - an American astrophysics lecturer you can actually listen to without thinking about training collars🙊🐩. started listening to one lecture last night and let me put it this way: if he had been reading out next week's lotto numbers I would have settled for match-3 rather than have to listen to him er his way through them all. probably be last week's numbers by the time he got there anyway......
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Good presentation!
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no mention of Magnettars?
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are we sure it is the gravity preventing light from "escaping" or is there some other mechanism preventing us from seeing the "light" near such a gravitational event? is the lack of light a byproduct? and if so, can we conclude that some interaction between black holes and "?" is merely stopping the light(photons) from being seen or should we assume that our eyes never lie to us? this is important because common physics teaches that the fastest thing in the universe is light..,
however, these black holes are powerful enough to overcome the light and even entrap it. but some black hole models show particles escaping a black hole. so someone screwed up somewhere in their calculations i think! :P -
It sounds like the same kid in different lectures asking questions. Its kind of funny for me listening at the end and hearing that same voice or kid. Could be a repeat visitor. Good for the kids to ask questions too.
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Let's show the interesting slides supporting this lecture only for a few seconds and
show a speaking man for almost one hour ... how interesting (for gays) -
Let me start by saying, I have not watched this video but, am only voicing my objection to the rhetoric of the title of this video. My objection may seem trivial to most, however, I feel this is very important if we ever hope to survive our own collective, short-sighted, human-centric, self-destructive behavior.
Stars, whether dead or not, are incapable of vengefulness or any other kind of feelings because, they are not sentient nor, are they life forms of any kind. This persistent, ubiquitous tendency to anthropomorphize every damned thing humans observe is extremely irritating to me and, it serves no purpose whatsoever except, to contribute to conditioning people to think completely in the wrong way. This is a holdover from religious, delusional conditioning that was, (and is still being), forced upon the human species by tyrannical parasites throughout at least the last two thousand years.
Understand this people:
ABSOLUTELY NOTHING WHATSOEVER IN THE ENTIRE UNIVERSE IS ABOUT HUMANITY, EXCEPT FOR THE HUMAN-CENTRIC, IMAGINARY WORLD THEY INSIST ON LIVING IN! -
in year 2013 at the peak of my insanity (that is how humans call my state of total utopia obduction) on the night sky with naked eyes i saw one star splitting in two that were quantum entangled and carry their so pure dance. the length of quantum entanglement path is no more than the length of two arms of a man in form of a hug (elliptically connected arm of one man hugging his beloved wife when she's absent) with the strait line along the chest where the hart is placed. words alone are not enough to describe this.
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That kid !
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Man these presentations are all amazing. Thanks SVAstronomyLectures.
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I wonder if its always the same kid or kids at these lectures. The voice to me always sounds the same. But good on them, and look at me turn green with envy :P
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What are the surface speeds of these pulsars? The Earth takes one day to spin a full circle and its tiny. If you could stand on the surface of one of these pulsars the galaxy would be but a blur.
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Very happy when I see one of these lectures go up :)
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