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Joined 2 years ago
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Cake day: July 6th, 2023

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  • I actually have another one… my now father in law, back when I first meet my wife, got me an empty dvd case of some random D movie nobody has ever heard of from the dollar bin at Walmart.

    Somehow the dvd was plastic wrap sealed and still had the $1 sticker on it, but I later opened the case up and it was empty.

    I initially took offense, because it really seemed like an insult, but it turns out that 14 Christmas holidays later and he still gets weird random useless stuff for everyone for Christmas, it wasn’t just me.





  • Notepad ++ is invaluable for writing code, I’ve used it for a long while now.

    Also great is paint dot net which is a super advanced paint application that is borderline as good as photo shop, particularly when you add on all the community-created functionality.

    Revo uninstaller is the first thing I put on a new machine before I delete all the bloatware that comes with a fresh install of windows. You would be surprised what is left over when you only use the built in ‘remove a program’ process.

    Lastly, browser based but free and excellent, is sketch up, which is an architectural rendering application great for designing restaurants and retail spaces. A little bit of a learning curve but very smooth and functional once you get the hang of it.

    Edit - VLC goes without saying right?


  • Because if we were all somewhere else, you would be asking the same question about that place.

    “This is rather as if you imagine a puddle waking up one morning and thinking, ‘This is an interesting world I find myself in — an interesting hole I find myself in — fits me rather neatly, doesn’t it? In fact it fits me staggeringly well, must have been made to have me in it!’ This is such a powerful idea that as the sun rises in the sky and the air heats up and as, gradually, the puddle gets smaller and smaller, frantically hanging on to the notion that everything’s going to be alright, because this world was meant to have him in it, was built to have him in it; so the moment he disappears catches him rather by surprise. I think this may be something we need to be on the watch out for.”


  • If you are in pain now, you will love it when they are finished with the root canal. I have had six of them over the years, and every time I went from feeling absolutely horrible to 100% in the 1 hour it took them to do the operation.

    The only thing that is not comfortable are the initial numbing shots.

    Make sure they get you good and numb. If you have any doubt as to whether you need another shot, just get another shot.

    After 3 or 4 or 5 shots of numbing agent, you won’t feel a thing.

    Once the numbing wears off you will feel totally fine.

    It’s really not that bad, much better than living with tooth pain.

    Also, ask for a big gloop of topical anesthetic where they are planning to do the injections, it helps a little bit.

    Lastly, ask for 10 milligrams of diazepam if you have someone to drive you. A little benzo to take the edge off goes a super long way and dentists have no problem prescribing it. Have the dentist prescribe it and take it 1 hour before the appointment. I am 200lbs and 10mg does the trick.


  • Walz did a great job, I am super happy.

    I like how Walz chose not to dig into Vance too much, but instead he focused on a return to some sort of a normal functioning government.

    Even some republicans are tired of the war between the left and right, and some of those who publicly identify as trump supporters may secretly vote for Harris simply because they do not want to continue to be at odds with their left wing family members.

    Some republicans might recall a time when they were the patriotic ones, loving their football, their police, and their country. Now the party of trump is being told that football is woke, that the police are weak, and that the country is a shithole.

    I think some of them miss what the Republican party used to be.

    Even if it is just 5 percent of trump voters, Walz did a great job sending the message that it’s time we come together as a country and start making progress where it can be made, rather than feeding into the identity politics game of mud slinging.

    Vance and his ilk wear their atrocious views on their sleeves, we don’t need to waste any time pointing out how terrible they are, we need to instead focus entirely on what we can accomplish together.

    Everyone who is eligible needs to vote this time around, let’s all do our part to make it a landslide.



  • I love old movies. Here are 15 great ones. Watch these and you will love old movies too! Most are available on internet archive. I could probably add another 85 to this list.

    • Lawrence of Arabia (1962)
    • All About Eve (1950)
    • The Apartment (1960)
    • What Ever Happened to Baby Jane (1962)
    • Sunset Boulevard (1950)
    • Witness for the Prosecution (1957)
    • The Maltese Falcon (1941)
    • Rear Window (1954)
    • Laura (1944)
    • Rope (1948)
    • To Have and Have Not (1944)
    • Key Largo (1948)
    • Lifeboat (1944)
    • The Letter (1940)
    • Now Voyager (1942)

    Edit: bonus movie

    • Gold Diggers of 1933 (1933)






  • Copy paste top answer from the original question is below.

    I find it refreshing that there are actually people out there who are smart and understand this stuff, when I am constantly surrounded by stupid people like myself.

    For an exact calculation we need to address a few choices: (you can change them, the answer will not be tremendously affected)

    1. What is the receiver? Let’s assume a 70 m dish, like this one [CDSCC] in the Deep Space Network.
    2. [Voyager 1] can transmit at 2.3GHz or 8.4GHz. Let’s assume 8.4GHz, for better beam forming (but probably it can only use the lowest frequency at the highest power, so this could be too optimistic).
    3. Does “received” mean all photons hitting the antenna dish, or only those entering the electronic circuit of the first LNA? A similar question can be asked for the transmitter in the space craft. We’ll ignore this here since losses related to illuminators or Cassegrain construction will not even be one order of magnitude, insignificant compared with the rest. Answers:\

    A) Voyager sends 160 bits/second with 23W. Using 8.3GHz this is 4⋅1024 photons per second, or 2.6⋅1022 per bit, because for frequency f the energy per photon is only Eϕ=ℏω=2πℏf=5.5⋅10−24J  or  5.5 yJ (yoctojoule).

    B) The beam forming by Voyager’s d=3.7mdish will direct them predominantly to Earth, with (πd/λ)2 antenna gain, but still, at the current distance of R=23.5 billion kilometers, this only results in 3.4⋅10−22 Watt per square meter reaching Earth, so a receiver with a D=70m dish will collect only 1.3 attowatt (1.3⋅10−18W), summarized by: Preceived=Ptransmit (πdλ)2 14πR2 πD24 Dividing by Eϕ we see that this power then still corresponds to c. 240000 photons per second, or 1500 photons per bit. If we assume f=2.3GHz this becomes 415 photons per bit. And if we introduce some realistic losses here and there perhaps only half of that.

    C) (Although not asked in the question) how many photons per bit are needed? The [Shannon limit] C=Blog2(1+SN), relates bandwidth B, and S/N ratio to maximum channel capacity. It follows that with only thermal noise N=kTnoiseB, the required energy per bit is: Ebit=SC=kTnoise 2C/B−1C/B ⇒ limC≪B  Ebit=kTnoiselog2, where C≪B is the so-called “ultimate” Shannon limit. With only the CMB (Tnoise=3K)we would then need 41yJ, or 41⋅10−24J, per bit. That’s only 7.5 photons at 8.3GHz. But additional atmospheric noise and circuit noise, even with a good cryogenic receiver, could easily raise Tnoise to about 10K and then we need 25photons per bit at 8.3GHz, and even 91 at 2.3GHz. So clearly there is not much margin.