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Joined 2 years ago
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Cake day: June 14th, 2023

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  • Based on what the guy said in the video it sounds like his driveway snow melter is resistive electric. That means the coefficient of performance is 1.0: you get 1 watt of heat in the driveway for every watt of electricity you consume.

    We already consider that to be unacceptable for household heating. With a modern heat pump you can achieve a COP above 4.0, even when ambient temperatures are below freezing. So why not have a heat pump driving refrigerant lines under the driveway surface? With COP 4.0 you’re 4 times the efficiency of electric resistive heating which means your costs are 1/4:

    $26.33/4=$6.58

    Now that is a lot more reasonable!


  • The original comment was “insects are not meat.” That’s it! That’s the whole claim you’re trying to defend. It’s like saying “chickens are not meat.” So they’re vegetables then?! It’s a ridiculous claim!

    There are different senses (or uses) of the word meat. One sense, the narrowest one which butchers use when they talk about separating whole muscle from skin, bones, and other tissues, is the one which you are insisting is the only true definition. Another sense, the broader dietary one, classifies any product or byproduct from an animal as meat, including the whole unprocessed carcass.

    Since the original claim was simply the unqualified statement “insects are not meat”, I am claiming the freedom to use the broader dietary sense of the word to show how ridiculous that statement is. You, by your insistence on the narrower sense of the word, are the one being pedantic.



  • If I buy a whole chicken at the grocery store, I buy it in the meat section. No one would say “you’re buying a whole chicken, therefore you’re not buying meat.”

    With lobster you can extract the meat and eat it. You can also boil the empty shell to make a lobster stock as a base for a seafood soup or a pan sauce. Just as with chicken you don’t eat the bones but you can boil them to make stocks for soup or pan sauces. They’re still classified as meat and the products you make from them are considered meat products.





  • I think after the younger partner reaches age 30 the rule doesn’t matter anymore.

    If a 30 year old decides to get together with an 80 year old then nobody should be shaming either of them. If they’re both mature, consenting adults then we should celebrate their happiness. Of course if one or the other is unable to consent by reason of cognitive disability then that’s a different story altogether (and would be a problem even if their ages were very close).




  • I’ve seen too many alien-themed horror movies to buy into the “aliens are gonna be Vulcans” trope. I think it’s more likely that we see one of many variations on the “aliens are unknowable horrifying parasites that will consume/transform all life on the planet to suit themselves.”


  • Very nice, though one thing to note for readers is the pictures are of transverse waves like you’d see in a vibrating string. Sound waves are longitudinal pressure waves which propagate outward in expanding spheres from the source of the noise. The loudness of a sound you hear corresponds to the pressure and frequency it imparts on your eardrum at the point of intersection between that expanding sphere and your ear.

    This pressure is directly proportional to the surface area of your eardrum on the surface of that sphere. As you may or may not recall from high school geometry, the surface area of a sphere is 4pi*r^2. If you consider the pressure of a sound wave as being evenly spread out over the surface of that expanding sphere (assuming an ideal gas), then doubling the distance from the sound source will quadruple the surface area of the sphere, thus decreasing the pressure your eardrum experiences by a factor of four! Sounds from very far away rapidly lose pressure (so are quieter) without the aid of constructive interference to boost them.

    If you’ve ever heard an echo, you know that sounds can bounce off solid surfaces. Combined with the phenomenon of constructive interference, sound reflections can achieve a great deal of amplification (and attenuation with destructive interference). This is the principle upon which architectural acoustics is based.


  • What is your routine like? Do you go to work? Volunteer? Have hobbies?

    I ask this because going through a breakup — any breakup — involves a grieving process. Part of grieving is about moving on. A big part of doing that is finding new things to do, new people to talk to, and new things to talk about.

    Counseling is good, but talking to other friends and family about her can make it very difficult. If you meet someone new — doesn’t have to be romantic, can be any gender, can just be a friend — can give you a person to talk to and topics to discuss that involve you and your interests and have nothing to do with her.

    When you’re in a relationship for a long time a lot of your thoughts and even the objects around you in life get tangled up in that so that when she’s gone these things still remind you of her. What you need is to be selfish — grieving is a selfish process — because you need to reorient your mindset around yourself and taking care of yourself.

    Lastly, I think it’s also helpful to have a third space where you can focus on stuff completely outside yourself and all that. For me it’s been volunteering as a tutor for high school kids. It gives me a time and a space each week to forget about everything and focus on something else. Helping kids and seeing them learn is a nice bonus for that. That may not be your cup of tea though, but something else may be! If you aren’t already into volunteering I’d encourage you to look into some volunteer organizations near you and try to find one that fits your interests.