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Posts by Jeff F

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  • Obama portraits make history with compelling works from significant painters

    02/15/2018 8:59:15 AM PST · 104 of 141
    Jeff F to Oldeconomybuyer
    "...breaking the tradition of commissioning official portraits from one - always white and always male - artist.”

    Did Rick Brettell, the founding director of the Edith O'Donnell Institute of Art History at UT Dallas forget about Elizabeth Shoumatoff? She painted not only the portraits of president Lyndon B. Johnson and Lady Bird Johnson but also the very well known "Unfinished" and final Portrait of President Franklin D. Roosevelt.

    Perhaps the most learned Mr. Brettell identifies Mrs. Shoumatoff as a man.

  • Samsung announces 4th Generation V-NAND and 32TB SSD in 2.5" package (64 Layer )

    08/11/2016 2:39:07 PM PDT · 20 of 30
    Jeff F to dfwgator
    Tosh - my Apple /// Profile hard drive also cost $3,495 but with half the storage at 5 MB. The entire thing came filled up with an Apple promotional video featuring Dick Cavett. Deleted that right away.

    I don't thick I ever fill the massive amount of storage doing mostly Quark word processing documents, Apple Basic programs, and 123 spreadsheets. The Apple /// was widely reviled but I loved mine. It was lightning fast at the above tasks, particularly the Quark word processor which was the best and by far the fastest on any PC.

  • Do We Need to Revise General Relativity?

    05/20/2016 1:18:39 PM PDT · 24 of 40
    Jeff F to ganeemead
    There is no such thing as “dark matter”...

    Matter of fact, it's all dark!

    (With apologies to Pink Floyd)

  • Kitchener woman follows GPS right into Tobermory, Ont., harbour

    05/14/2016 10:44:51 AM PDT · 23 of 34
    Jeff F to Lonesome in Massachussets

    Tobermory and the surrounding area is a very beautiful portion of Lake Huron and Georgian Bay. You have the wonderful Bruce Trail and Peninsula, the Escarpment, Indian Head Cove with the Grotto, and the Flowerpot Islands. After last year’s very cold winter and spring, the water temperature was still about 2 degrees Celsius in June.

  • Uber and Lyft will leave Austin, TX after losing vote on fingerprinting

    05/09/2016 11:17:52 AM PDT · 35 of 56
    Jeff F to matt04

    One of the lesser know societal benefits of Uber and Lyft is their widespread use by people who have been drinking. The services have been shown to save lives. Austin will probably now experience a rise in drunk driving fatalities. I would think the 6th street frequenting college kids are most at risk.

  • Russian fighters buzz U.S. Navy - Why? Because they can

    04/14/2016 10:22:13 AM PDT · 28 of 58
    Jeff F to A_Former_Democrat
    The captain would only be authorized to respond if fired upon and perhaps not even then. He and his crew have seen many similar if less extreme incidents staged by the Russians. They know this incident is for show and not for war. In any case, the ship and crew would not survive for long if the Russian actually decided to fully engage it in those waters.

    The purpose of the US ship is to show the flag, support allies, and to gather information. It is not to get into a hopeless fight that could lead to a much boarder and deadly conflict.

  • Russian fighters buzz U.S. Navy - Why? Because they can

    04/14/2016 10:09:14 AM PDT · 26 of 58
    Jeff F to Sean_Anthony
    While versions of this sort of intimidation tactic has been going on for some time now under Putin, I think the reason this incident was taken to the next level can be traced to the recent publication of the massive Panama bank data leak.

    The information implicates Putin's ruling entourage and thus Putin himself. That might actually cause his massive popularity at home to slip a bit. He autocratic rule and unchallenged authority depend partly upon his carefully crafted image. To chick away at that image is viewed as direct threat to his rule.

    Putin believes that the bank leak was a USA led black operation. He may be entirely correct as the leak seems to have implicated the Russian and Chinese oligarchy in particular. The Russians have quickly responded with their characteristic disinformation campaign while China has blocked all internet access to stories about the leak. Those responses can be viewed as a measure of the seriousness that each regime accords to this threat.

    Both the Russian and Chinese regimes have long conducted deep cyber penetrations of US government and US businesses. Both provided direct aid and protection for Edward Snowden who has caused massive harm to US intelligence gathering effort and to US interests.

    The embarrassing bank leak could well be payback and a shot across the bow. It demonstrates that the US can play the same game. Putin, in turn, seems to have authorized his own response literally across the USS Donald Cook's bow.

  • What’s Happening in China Is Happening Here [Our student loans are like their apartment blocks]

    08/13/2015 7:52:06 AM PDT · 4 of 7
    Jeff F to SeekAndFind

    I am not familiar with the author, Kevin D. Williamson, but I am impressed by his ability to turn a clever phrase while still writing clearly. I look forward to reading more of his articles.

  • OPM hack shows what happens when governments get too big

    07/13/2015 6:55:25 AM PDT · 4 of 13
    Jeff F to SeekAndFind
    The implication that this was some sort of technical oversight that left the data vulnerable to some sort of hack is total BS according to congressional testimony by Department of Homeland Security officials. Instead it was due to stupidity and incompetence on such a massive scale that it is impossible to overstate.

    OPM gave free access to it's databases to both a Chinese company and an Argentine company. That means that the Chinese government, at the very least, also had full access to the database and likely all OPM systems. The database contains very sensitive background information for all US Government employees including national security and intelligence employees.

    In a sane world this would result in overturning the current government and jail terms for many of its operatives. Instead, virtually no one knows or cares about this issue, and almost no one understands how dangerous a matter it is for all of us.

  • The US agency plundered by Chinese hackers made one of the dumbest security moves possible

    07/12/2015 6:05:45 AM PDT · 32 of 48
    Jeff F to Libloather
    I suspect that Edward Snowden's massive theft of NSA data is linked to this. He may have been recruited by the Chinese. At the very least, the Chinese would have known of his importance during his stay in Hong Kong, and would have thoroughly exploited it before allowing him to leave for Russia. Even if Snowden wanted to keep the Chinese from accessing his stolen files, he would have had no means to do so. The Truecrypt encryption program he used would have only temporarily impeded Chinese (and then Russian) intelligence.

    I think it is very likely that China and Russia have copies of the crown jewels of our intelligence databases. I think it is likely they have multiple active backdoors into key government databases to keep their database snapshots current. The backdoors are almost certainly augmented by redundant tiers of human agents.

    The level of stupidity, incompetence, and danger in this matter is so great that one can only deal with it by ignoring it. That seems to be working for now as very few citizens know anything about this, much less care. Americans have been well conditioned to have a broad contempt for their country, after all.

    Unfortunately, these are the sort of failures that result in lost wars. Every week we seem to be moving closer to war with one or both of our major adversaries.

  • SpaceX reviewing mountains of data to figure out why its rocket exploded

    06/29/2015 7:02:37 PM PDT · 27 of 32
    Jeff F to Steely Tom

    I also see you are a fellow veteran member here with a full 7 days of seniority over me. Dang!

  • SpaceX reviewing mountains of data to figure out why its rocket exploded

    06/29/2015 6:52:42 PM PDT · 26 of 32
    Jeff F to Steely Tom
    Mr. Jeff F yesterday guessed LOX tank rupture due to failed relief valve.

    You are kind to remember and credit me. And, no, sadly I am neither as funny as Jeff Foxworthy nor as smart as a rocket scientist.

  • SpaceX reviewing mountains of data to figure out why its rocket exploded

    06/29/2015 6:48:52 PM PDT · 25 of 32
    Jeff F to Ozark Tom
    Very nice summary. The G loading would have gone up even further with the rapid loss of mass from venting the LOX while the first stage still powered on for another eight seconds. The supersonic airstream would likely have been powerful enough to shred the open second stage once the capsule broke free. Capsule separation seemed to happen within a second or two of the tank rupture. The same shredding would then happen to the first stage along with the flash burning of what fuel remained leaving only the Dragon capsule intact.

    I haven't seen a good description yet of the tank overpressure event. If it was gradual, then the stuck relief value idea seems to make sense to me. If it was very sudden (you mentioned a spike), then there may have been an internal combustion event as with the Apollo 13 command module's LOX tank. Or perhaps the tank was suddenly deformed or crushed from some external force such as a structural failure of the upper stage body.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 8:29:48 PM PDT · 163 of 168
    Jeff F to jpsb
    Damn, I really like spaceX.

    This appears to me to be a problem with a simpler and easier to fix subsystem than would be the case if it involves one of the engines. Space-X has a track record of identifying and fixing lesser problems very quickly. It may take a while to regain the full confidence of all of their customers. This is particularly the case for their goal of having NASA certify their manned version of the Dragon capsule.

    Other positives are that the first stage and all nine engines continued to function in a controlled manner even well after the upper stage and capsule had started to come apart. Also, the capsule appeared to survive the breakup with telemetry still intact. Space-X may be able to argue this shows the robustness of their hardware. They may be able argue that if the capsule had been configured with the Draco thrusters as is the case with the manner version, that it would have escaped the breakup and landed safely.

    All this said, their still seems to be a tangible gap between the reliability of the Ariane and the ULA rockets and those of Space-X.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 10:58:23 AM PDT · 136 of 168
    Jeff F to Rockitz

    Musk did say an overpressure event in the liquid oxygen tank but perhaps a failed helium tank could have cause a cascading failure with the LOX.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 10:28:41 AM PDT · 128 of 168
    Jeff F to Jack Hydrazine
    Elon tweeted this: “There was an overpressure event in the upper stage liquid oxygen tank. Data suggests counterintuitive cause.”

    Looks like my early wild guess of a LOX tank rupture was about right. My other guess was that it was due to a failed relief valve but then that seems pretty intuitive so I may be all wet.

    BTW - You have an absolutely great screen name for this thread!

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 8:51:36 AM PDT · 92 of 168
    Jeff F to caww

    Looks to me like the manned version of the Space-X Dragon capsule would have safely separated just before or during the Falcon’s breakup. That capability was scheduled to be tested in the Fall with a planned maximum Q separation, but the test will now probably be pushed back.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 8:37:39 AM PDT · 83 of 168
    Jeff F to Jeff F

    I’ll follow up with a second wild guest - the relief value for the LOX tank failed leading to a rupture of the tank.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 8:27:31 AM PDT · 77 of 168
    Jeff F to BwanaNdege

    I don’t see any signs of the second stage igniting before separation. Instead, the upper part of the vehicle appears to be rapidly venting a gas for about 8 seconds before the rocket broke up. My wild guest is the second stage’s liquid oxygen tank ruptured.

  • SpaceX’s CRS-7 Mission Ends In Catastrophic Failure, Loss Of Vehicle

    06/28/2015 8:17:34 AM PDT · 73 of 168
    Jeff F to Delta 21

    Yes, the Falcon had gone supersonic and had moments before reached Max Q while traveling about a mile per second. The vehicle rapid disassembly may have been more a matter of aerodynamic forces rather than a true explosion or a commanded destruct sequence.