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Thread: What in the world is keeping you up at night? Official Thread

  1. #31

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    Quote Originally Posted by BigFatMeanie View Post
    -
    - Declining birthrate among Western nations
    combined with a nonsensical strong anti-immigrant push in most of those countries.

  2. #32

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    Quote Originally Posted by Green Monstah View Post
    Gravitational time dilation. I can wrap my head around time dilation caused by motion, but I am having a really hard time finding a layman's explanation for why time moves slower nearer to the source of a gravitational field that is an actual explanation rather than simply "your GPS works correctly because Einstein was right."
    Quote Originally Posted by Northwestcoug View Post
    My daughter's boyfriend, who is a physics major, can't dumb it down for me either.
    gravity time diagram.jpg

    Gravity bends space-time, dummies.

  3. #33
    Senior Member Eddie's Avatar
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    Pretty significant job role change that comes with some added responsibility kept me up Friday night. I just kept seeing varying deadlines for different reports and notices and freaked myself out with trying to remember what all of the deadlines are for all of the reports. Been working on a list I can post and follow - but it isn't done yet. I'm afraid I've got more sleepless nights ahead.......

  4. #34

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    Quote Originally Posted by Applejack View Post
    gravity time diagram.jpg

    Gravity bends space-time, dummies.
    Wow, thanks. Mind, exploded.

  5. #35

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    Quote Originally Posted by Applejack View Post
    gravity time diagram.jpg

    Gravity bends space-time, dummies.
    Stuff like this doesn't bother me. I don't ask silly questions like what ingredients are in the hot dog--I just eat it because it's delicious.

  6. #36
    Royal Rooter Green Monstah's Avatar
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    Quote Originally Posted by Applejack View Post
    gravity time diagram.jpg

    Gravity bends space-time, dummies.
    Is it more like: mass bends space time, creating gravity?

    It’s easier for me to visualize time dilation caused by motion.

    But the warping of space time is still tough for me to fully conceptualize. I think the warped grid visuals often shown are helpful to a point. So, using the graphic above, the higher magnitude of the warping causes a tick of a clock to be longer In stronger gravitational fields than in weaker ones. I guess it makes as much sense as gravity itself.
    Jesus wants me for a sunbeam.

    "Cog dis is a bitch." -James Patterson

  7. #37

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    Quote Originally Posted by Green Monstah View Post
    Gravitational time dilation. I can wrap my head around time dilation caused by motion, but I am having a really hard time finding a layman's explanation for why time moves slower nearer to the source of a gravitational field that is an actual explanation rather than simply "your GPS works correctly because Einstein was right."
    Quote Originally Posted by Green Monstah View Post
    Is it more like: mass bends space time, creating gravity?

    It’s easier for me to visualize time dilation caused by motion.

    But the warping of space time is still tough for me to fully conceptualize. I think the warped grid visuals often shown are helpful to a point. So, using the graphic above, the higher magnitude of the warping causes a tick of a clock to be longer In stronger gravitational fields than in weaker ones. I guess it makes as much sense as gravity itself.
    Well, yeah, but that's like saying the same thing, bro.

    You can't be too literal with relativity or (especially) Quantum mechanics. Visuals are helpful, to a point. But in the end, you just have to trust the math.

  8. #38
    Royal Rooter Green Monstah's Avatar
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    Quote Originally Posted by Applejack View Post
    Well, yeah, but that's like saying the same thing, bro.

    You can't be too literal with relativity or (especially) Quantum mechanics. Visuals are helpful, to a point. But in the end, you just have to trust the math.
    I disagree that its saying the same thing, but either way, space-time is curved.

    That is what is frustrating to me. For whatever reason, physics is my jam right now. Although I liked math, I haven't taken a math class since fall of 1998. I'm purchasing the "Theoretical Minimum" books by Susskind. Even though they're basic and dumbed down for the non-physics folks, they still require a working knowledge of trigenometry and are really written for people who have at least studied calculus (I have not).
    Jesus wants me for a sunbeam.

    "Cog dis is a bitch." -James Patterson

  9. #39
    Royal Rooter Green Monstah's Avatar
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    I have a long way to go before I tackle this, but honestly, the holographic principle is what got me on this kick. It literally kept me up at night for a few nights, but I realized I needed to start with Newton and Einstein before tackling quantum mechanics and string theory. I may be dead before I get to string theory.
    Jesus wants me for a sunbeam.

    "Cog dis is a bitch." -James Patterson

  10. #40
    It is NOT a monkey! creekster's Avatar
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    In the past 40+ years I can only recall not being able to go to sleep when I want to three times: 1) The night before the first day of the first bar exam I took. The subsequent nights and the ones I took in other states did not keep me up. 2) Once when one of my kids was briefly in a very bad situation. 3) The night before the first day of trial in a "bet the company" piece of litigation I was handling.

    That's it. And they stand out because they are so rare. Otherwise, I can pretty much put my head on the pillow, close my eyes and go to sleep. My friends have pointed out the saying that only sociopaths and simpletons sleep like that. I am def on the simpleton side of the scale, I think. I feel badly for any of you who suffer insomnia, but I cannot empathize.
    PLesa excuse the tpyos.

  11. #41
    Board Bookworm happyone's Avatar
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    Quote Originally Posted by creekster View Post
    In the past 40+ years I can only recall not being able to go to sleep when I want to three times: 1) The night before the first day of the first bar exam I took. The subsequent nights and the ones I took in other states did not keep me up. 2) Once when one of my kids was briefly in a very bad situation. 3) The night before the first day of trial in a "bet the company" piece of litigation I was handling.

    That's it. And they stand out because they are so rare. Otherwise, I can pretty much put my head on the pillow, close my eyes and go to sleep. My friends have pointed out the saying that only sociopaths and simpletons sleep like that. I am def on the simpleton side of the scale, I think. I feel badly for any of you who suffer insomnia, but I cannot empathize.
    I can think of twice - The first time I was about to go to war. We were on alert to go to Granada, we'd had our final officers call, the BN CDR told us to go home and get some sleep, first formation at 0430 to draw weapons, masks and ammunition. The C-5 (which was on the ground at Ft. Campbell) would be wheels up at 0730. I got home at about 9 PM and tossed and turned all night - not so much worrying about my personal safety ( I was the BN signal Officer - if I was getting shot at, things had really gone to hell in a hand basket!), but something I would do or not do would get someone killed. About 2 in the morning, I get a call from the SDO saying (this a quote - I don't think I'll ever forget his words) "We're not going, first formation 0630, PT Uniform - tell your people."

    The second time, my 2 yr daughter was hospitalized with asthma and they couldn't get her oxygen levels above 70 - she was about to be lifeflighted to Primary Children's when they finally stabilized and recovered a bit - she spent about a week in the hospital

    Like the esteemed Creekster, when I go to sleep, I sleep. I don't remember dreams or anything like that. I also must be on the simpleton side of the equation.
    Last edited by happyone; 06-18-2019 at 06:42 PM.

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  12. #42
    вот так штука CardiacCoug's Avatar
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    Quote Originally Posted by creekster View Post
    In the past 40+ years I can only recall not being able to go to sleep when I want to three times: 1) The night before the first day of the first bar exam I took. The subsequent nights and the ones I took in other states did not keep me up. 2) Once when one of my kids was briefly in a very bad situation. 3) The night before the first day of trial in a "bet the company" piece of litigation I was handling.

    That's it. And they stand out because they are so rare. Otherwise, I can pretty much put my head on the pillow, close my eyes and go to sleep. My friends have pointed out the saying that only sociopaths and simpletons sleep like that. I am def on the simpleton side of the scale, I think. I feel badly for any of you who suffer insomnia, but I cannot empathize.
    Yep similarly I can always fall asleep.

    Sometimes when I’m stressed out about something though I wake up at 3-4 AM and am very alert, definitely not able to sleep anymore.

  13. #43

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    Quote Originally Posted by Northwestcoug View Post
    My fish pond keeps growing string algae, even after I use algicide regularly. I tried the green route by adding snails, but it didnít work. Iím wondering if itís because I altered the microbiome by adding a bacterial solution to decrease the sludge at the bottom of the pond. I think my fish actually enjoy the cover it provides, but it is growing uncontrollably. I just donít know what I should do now.

    Oh yeah, and I worry about my kids becoming responsible adults, yadda yadda.
    Update on the string algae. I got tired of it, so I just started pulling and twisting it with my finger. It came out in big gobs pretty easily. And it hasn't returned. Yay!

    Now it's Mrs. NWC's cough that is keeping me up at night

  14. #44
    Bald not naked Pelado's Avatar
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    Quote Originally Posted by Northwestcoug View Post
    Update on the string algae. I got tired of it, so I just started pulling and twisting it with my finger. It came out in big gobs pretty easily. And it hasn't returned. Yay!

    Now it's Mrs. NWC's cough that is keeping me up at night
    You should have Mrs. NWC talk to Green Monstah about that cough.
    "I think it was King Benjamin who said 'you sorry ass shitbags who have no skills that the market values also have an obligation to have the attitude that if one day you do in fact win the PowerBall Lottery that you will then impart of your substance to those without.'"
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  15. #45

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    Quote Originally Posted by Pelado View Post
    You should have Mrs. NWC talk to Green Monstah about that cough.
    Why, did he give it to her?!?

  16. #46
    Bald not naked Pelado's Avatar
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    Quote Originally Posted by Northwestcoug View Post
    Why, did he give it to her?!?
    Not that I know of, but he might have a remedy for it anyway.
    "I think it was King Benjamin who said 'you sorry ass shitbags who have no skills that the market values also have an obligation to have the attitude that if one day you do in fact win the PowerBall Lottery that you will then impart of your substance to those without.'"
    - Goatnapper'96

  17. #47

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    https://nationalpost.com/opinion/bar...ory-goes-wrong

    When gender identity education and theory goes wrong

    To recap briefly: the Buffones’ daughter N, six years old, and by their account a happy girl (comfortable in her skin, adored school), was abruptly plunged into considerable distress when informed by her teacher (young, three years experience) during a session on gender identity that gender is fluid and untethered to biology, and that “girls are not real” and “boys are not real.”

    In their Human Rights Tribunal of Ontario claim, the Buffones request as a remedy that the tribunal order the school board to ensure that classroom instruction does “not devalue, deny, or undermine in any way the female gender identity,” and that parents be informed “when lessons on gender identity will take place, including the teaching objectives and the materials that will be or have been used for such lessons."

  18. #48

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    Quote Originally Posted by tooblue View Post
    https://nationalpost.com/opinion/bar...ory-goes-wrong

    When gender identity education and theory goes wrong
    That's nuts.

  19. #49
    My Mic Sounds Nice falafel's Avatar
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    Canada.
    Ain't it like most people, I'm no different. We love to talk on things we don't know about.

    "The only one of us who is so significant that Jeff owes us something simply because he decided to grace us with his presence is falafel." -- All-American

    GIVE 'EM HELL, BRIGHAM!

  20. #50

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    Florida principal refused to call the Holocaust a 'factual, historical event'

    https://www.usatoday.com/story/news/...al/1671938001/

  21. #51
    𐐐𐐄𐐢𐐆𐐤𐐝 𐐓𐐅 𐐜 𐐢𐐃𐐡𐐔 Uncle Ted's Avatar
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    USING A SOFTWARE DEFINED RADIO TO SEND FAKE PRESIDENTIAL ALERTS OVER LTE

    Modern cell phones in the USA are all required to support the Wireless Emergency Alert (WEA) program, which allows citizens to receive urgent messages like AMBER (child abduction) alerts, severe weather warnings and Presidential Alerts.

    In January 2018 an incoming missile alert was accidentally issued to residents in Hawaii, resulting in panic and disruption. More recently an unblockable Presidential Alert test message was sent to all US phones. These events have prompted researchers at the University of Colorado Boulder to investigate concerns over how this alert system could be hacked, potentially allowing bad actors to cause mass panic on demand (SciHub Paper).

    Their research showed that four low cost USRP or bladeRF TX capable software defined radios (SDR) with 1 watt output power each, combined with open source LTE base station software could be used to send a fake Presidential Alert to a stadium of 50,000 people (note that this was only simulated - real world tests were performed responsibly in a controlled environment). The attack works by creating a fake and malicious LTE cell tower on the SDR that nearby cell phones connect to. Once connected an alert can easily be crafted and sent to all connected phones. There is no way to verify that an alert is legitimate.
    [...]
    https://www.rtl-sdr.com/using-a-soft...erts-over-lte/

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    GIVE 'EM HELL, BRIGHAM!

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