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  1. lpetrich

    Alexandria Ocasio-Cortez

    Back to CommonDreams. He then linked to Duverger's law It makes me so happy to see a politician do something like that. He correctly recognizes that first-past-the-post produces a two-party system, and that third parties have no chance of winning unless some such party can displace some...
  2. lpetrich

    Alexandria Ocasio-Cortez

    "Yet this approach to politics has been essential in helping the left win a series of progressive victories over the course of Biden’s first term." AOC and the Squad’s List of Left-Wing Accomplishments Is Quite Long Biden’s newest climate rule takes an aggressive swing at coal power plants -...
  3. lpetrich

    Alexandria Ocasio-Cortez

    Back to CommonDreams. AR then says that in every poll he's seen, these AOC-haters are a small minority. But they are much louder than her supporters. AR then says that it's necessary to play to win, including winning elections. Seems like "They hate us for their freedoms", but when someone's...
  4. lpetrich

    Alexandria Ocasio-Cortez

    Opinion | Breaking Down AOC Derangement Syndrome | Common Dreams - "Relentlessly tearing down one of our most effective leaders undermines the capacity for progressives to win. And win we must." - by Aaron Regunberg, who ran for Rhode Island's House seat in 2023 What was this? WHAT THEY ARE...
  5. lpetrich

    The Race For 2024

    Bertrand Russell, in his "History of Western Philosophy", notes a book that advocated absolute monarchy. "Patriarcha: or The Natural Power of Kings", by Sir Robert Filmer, published in 1680. "In fact, both Protestant and Catholic divines, in their contest with Catholic and Protestant monarchs...
  6. lpetrich

    The Race For 2024

    Imperial Presidency? In 1973, Arthur Schlesinger Jr. wrote The Imperial Presidency AS wrote "...by the 1970s the American President had become on issues of war and peace the most absolute monarch (with the possible exception of Mao Tse-tung of China) among the great powers of the world." While...
  7. lpetrich

    The Race For 2024

    Donald Trump plans an imperial presidency. - "To carry out a deportation operation designed to remove more than 11 million people from the country, Trump told me, he would be willing to build migrant detention camps and deploy the U.S. military, both at the border and inland." His targets...
  8. lpetrich

    The Race For 2024

    Project 2025 - Project 2025 | Presidential Transition Project Donald Trump on What His Second Term Would Look Like | TIME Interviewer Eric Cortellessa toward the end of his interview:
  9. lpetrich

    Democrats trying to unseat each other III

    Although Jessica Cisneros isn't running this time, her main opponent both times, Henry Cuellar (D-Azerbaijan) is now in trouble over his Azerbaijan connections. Texas Rep. Henry Cuellar and wife indicted on bribery and foreign influence charges The two were released on $100,000 bond after an...
  10. lpetrich

    Black Holes: Some Recent Observations

    There are two solutions, one for the light coming nearly directly and one for the light making a detour around the mass: \displaystyle{ a_{obs} = \frac12 \left( a_{src} + \sqrt{(a_{src})^2 + (2 a_{ring})^2} \right) } and \displaystyle{ a_{obs} = \frac12 \left( a_{src} - \sqrt{(a_{src})^2 +...
  11. lpetrich

    Black Holes: Some Recent Observations

    ...a_{obs} = a_{src} + \frac{2R_{bh}}{b} } The impact parameter is \displaystyle{ b = D a_{obs} } where D is the reduced distance: D(src-mass) * D(mass-obs) / D(src-obs) very close to D(mass-obj) if D(src-mass) >> D(mass-obj). That gives us \displaystyle{ a_{obs} = a_{src} +...
  12. lpetrich

    Black Holes: Some Recent Observations

    ...- 2,000 K. Leaving that aside, what would the BH look like? Its Schwarzschild radius would be 47 km, and its minimum-passing-light diameter 3*sqrt(3) this or 246 km. Its size would be minimum 15, mean 21, maximum 39 milliarcseconds. But its gravitational-lens effect would be much larger...
  13. lpetrich

    Black Holes: Some Recent Observations

    I'll now consider the prospects of observing black hole Sgr A* from star S2. Main sequence - for definiteness, I will make it a B0V (main-sequence) start, with mass 18 Msun, radius 7.4 Rsun, luminosity 20,000 Lsun, and temperature 30,000 K. One would have to be in orbit around S2, but what...
  14. lpetrich

    Black Holes: Some Recent Observations

    For inspiral, most of the observations are of the last half-second, and after the merger, the resulting black hole "rings" for a short time more. With more than one observation of some event, one can find the direction of the event's source. With two, it is in a ring in the sky, with three, it...
  15. lpetrich

    Black Holes: Some Recent Observations

    First gravitational-wave detection of a mass-gap object merging with a neutron star - Northwestern Now - "The ‘mass gap’ might be ‘less empty than previously thought,’ researcher says" [2210.00425] On the Neutron Star/Black Hole Mass Gap and Black Hole Searches - the mass gap is between the...
  16. lpetrich

    Black Holes: Some Recent Observations

    General-relativity effects have been observed in the orbit of one of the closest stars to Sagittarius A* (Sgr A*) -- S2 (star) -- a blue giant This star's orbit: Period = 16.0518 years (astronomers use Julian years of 365.25) Major axis = 995.68 AU (observed angular) 0.12540" Mean orbital...
  17. lpetrich

    Black Holes: Some Recent Observations

    ...of the black holes that it has observed so far, the two with the largest angular size of event horizon: the central black holes of our Galaxy (Sgr A*) and of M87 (M87*). These most recent observations were done by looking for radio-wave polarization, and this polarization is a probe of the...
  18. lpetrich

    Black Holes: Some Recent Observations

    Not directly, of course, but from their gravity. The Gaia satellite recently detected evidence of three black holes, though very indirectly. It is an astrometric satellite, one designed to make precision measurements of the angles between stars. It does so repeatedly, and from repeated...
  19. lpetrich

    The Marjorie Taylor Greene case

    From some 1,500 years ago, Roman/Byzantine Emperor Justinian's New Law #77: The Novels of Justinian : Novel 77 ( Scott ) saying later in it that "crimes of this description cause famine, earthquakes, and pestilence". Author Gore Vidal shortened this to claiming that sodomy causes earthquakes.
  20. lpetrich

    Merged So what's next for Trump?

    Ranking Trump's Terrible Lawyers - YouTube - Sep 28, 2023 - LegalEagle Devin Stone of Legal Eagle (Jurist Bird?) Starting out with a Fox News commentator saying that politics is lawyers vs. lawyers, then complaining that his side doesn't seem to have the best lawyers. Donald Trump employs a...
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