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Cake day: July 3rd, 2023

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  • This is such a silly technical argument that I’ve seen twice now in this thread. Watts is just Joules/second. It’s entirely valid to wonder “what rate am I ‘consuming’ energy when I do X” rather than ask “how much energy did I ‘consume’ when I do X”

    Making this correction is similar to telling someone that asking how fast they moved is wrong, and they should only ask how far they moved.


  • 4790k was among the fastest per-core performance for many, many generations, even long after CPUs with 4x as many cores that could do 2x as much work total, 4790k could still beat them on single-core performance.

    Tbh, this is testament for Intel’s CPU stagnation more than anything else. Hence, why they are getting cooked financially today.

    Even today it’s still a great CPU and I’m still running one of my gaming machines with it.

    Idk if I would call it a great CPU today when you can achieve roughly double the performance with a budget tier ryzen 5 7600. Not to mention that a 7600 will get to use ddr5 rather than ddr3 memory.


  • Hehe, yeah, it’s a bit harsh to call it science fiction, especially this day in age when a lot of new physics lives in theoretical physics.

    Cosmological models are very difficult to test given their nature. In many cases they are tested in massive physics simulations. The general test is to simulate the cosmological theory and see if it produces a universe that has the same observable qualities as our current universe once the simulation reaches our present epoch.

    Nevertheless, Hawkins had his own reserves regarding his theory due to it not being experimentally falsifiable; but one must understand that rejecting the multiverse theory = rejecting the big bang theory since they are currently coupled.



  • Not exactly germ theory, but the early concepts of contamination which ultimately led to germ theory.

    The Native Americans at the time did not postulate the concept of bacteria and viruses, but they understood that sickness was not supernatural and that it was important to sterilize in order to prevent further sickness.

    Native American medicine was in many ways more advanced when compared to European medicine at the time. They also introduced things like sun screen, painkillers, and dental hygiene to Europeans.


  • Some Major Issues:

    1. The industrial revolution started almost a century and a half after 1600 (in 1760) which was well after European colonization.

    2. You are assuming that Europe would have developed the same way if they remained isolated. For example, the fundamental ideas which ultimately led to the modern concept of disease (bacteria and virus causing infection) was introduced to Europeans via the Native Americans. Beforehand, Europeans thought sickness was caused by religious superstition. This is why sterilization between surgeries wasn’t really a thing in Europe beforehand. European medicine involved reusing bloody knives to perform surgerys on different people because they didn’t understand the concept of cross contamination.

    The knowledge today is not purely the result of European thinkers. Your prediction grossly discounts the contributions to science and technology from other cultures in world.





  • I used the higher level 3-dimensional definition of work, and you told my I was wrong and provided my the high school level 1-dimensional definition of work. Then you hang it over my head and try to correct me as if my definition is incorrect.

    The fact is your knowledge of physics is so low that you didn’t even know this nuance; and you are not arguing in good faith because this is something you easily could have looked up and realized if all you cared about wasn’t “being right”.



  • reliv3@lemmy.worldtoMemes@sopuli.xyzPerpetual motion eludes us again.
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    3 months ago

    Not AI. I’m in academia, so I write academically.

    I specify “physics work” to mean physic’s definition of work (dot product between Force and Displacement).

    And to not connect the importance between the electric and magnetic field as it pertains to the the electrostatic force and magnetic force reveals your basic understanding of the physics. Hence, why your prior comment was so problematic…


  • reliv3@lemmy.worldtoMemes@sopuli.xyzPerpetual motion eludes us again.
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    3 months ago

    Oh boy, this is very incorrect, because it sounds like you are attempting to explain magnetism with electrostatic forces. Here is a basic model which separates the difference between the two:

    1. Electrostatic forces are caused by the electric field. Something produces an electric field simply by having an unbalanced charge. Positive attracts negative, negative repels negative, positive repels positive.

    2. Magnetic forces are caused by the magnetic field. Something produces a magnetic field by having an unbalanced charge AND is moving.

    This is why when trying to explain how solid magnets work, we focus on the electrons because electrons are charged particles that are always moving. So they produce both an electric field (being charged) and a magnetic field (being a moving charged system).

    Rhaedas is sorta correct. Any solid system has the capability of being a magnet, but this takes an incredible amount of physics work where iron is special. Iron’s electrons are able to easily maintain a synchronous orbit with each other which results in magnetic forces being observable at a macroscopic scale (seeing iron magnets pull on each other). In most other materials, the electrons orbits are chaotic, so even though magnetic fields are still being produced by their electrons, the lack of order results in no magnetic force being observable on the macroscopic scale; but if you place this non-iron material within a very strong magnetic field, you may be able to align their electrons orbits so that it becomes magnetic on the macroscopic scale (like iron).



  • It’s actually a bit ironic, because CRT is viewed by many White Americans as a theory which demonizes them; but CRT also defines how racism has harmed poor white people in the past and continues to do so today.

    CRT defines the biggest winners of Racism in America as being wealthy white folks. According to CRT, Racism as we know it today, was created as a means to take advantage of poor whites. Rich plantation owners recognized slavery caused great economic harm to poorer whites who did not own slaves. So a solution to stop revolt was to create this system of Race so that poor whites would remain divided from black slaves, and not work together to retaliate.

    CRT also claims that this is still occuring today. Racism continues to divide poor white people from poor people of color so that they don’t work together to fight against Injustice.



  • reliv3@lemmy.worldtoScience Memes@mander.xyzMultiverse
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    8 months ago

    I am not entirely certain what point you’re making here. Is the premise that conclusions based on evidence that involves literally seeing the thing are stronger than any conclusions where we haven’t directly seen the thing? If so, then we better throw out a majority of our scientific hypotheses, since most of them have not are not based on evidence where we have directly seen the thing (most of quantum mechanics, most of general relativity, most of astronomy, etc.)

    Human sight is a very restrictive window into observing our universe. We can only see a sliver of the light spectrum (visible light). We can expand this window slightly by using other senses to observe our universe (sound, taste, touch, scent). Where science shines is the practitioners ability to use abstract models and thought processes to draw conclusions about things we cannot observe. This expands our window into understanding our universe far more than leaning only on concrete models (things we can directly observed).

    In simpler terms, most of science’s conclusions involve ones that are closer to Planet X rather than directly seeing an exoplanet. Therefore, we cannot cheapen these type of conclusions.

    All science requires is models that make accurate predictions. For example, atoms. We have never seen an atom before, but we have used this model of the atom to accurately predict outcomes of experiments. Because of this, the atom still exists as a working hypothesis in science.


  • reliv3@lemmy.worldtoScience Memes@mander.xyzMultiverse
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    8 months ago

    Sort of. It’s kinda similar to science’s conclusion about the existence of intelligent alien life. Have we directly observed evidence of intelligent alien life? No. Are we pretty confident that intelligent alien life exists? Yes. It’s a probability thing. If we can exist in this massive universe, then it’s almost insane to think that we could be the only intelligent life that exists: the principle of mediocrity.

    When it comes to the standard cosmological model, it allows for universes with different shaped space-time continuums, different masses of elementary particles, etc. So, if it allows for all of these variables to be different, then it’s almost insane to think that our universe is the only universe that exists: principle of mediocrity again.

    In the BBT, the multiverse hypothesis comes in during the inflation epoch. At some point our universe bubble expanded faster than the speed of light. This creates a sorta localized boundary. Since we observe light with our eyes and we cannot go FTL, then we cannot observe or go places beyond this localized bubble which exists within our localized space. The BBT posits that other localized universe bubbles were also created during the epoch of inflation: the multiverse. Of course, to get to another localized bubble, one would have to travel faster than the speed of light and transverse through literal nothing (no space or time) to get there.

    Now keep in mind that the multiverse hypothesis is pretty cutting edge, so yes, there is still a lot of argument regarding its validity. One argument is that it is not a scientific hypothesis because there is no feasible way to observe outside our own localized bubble. Nevertheless there are scientists who are designing tests. For example, some physicists posit that if our localized bubble collided with another localized bubble, then it could result in an observable effect on the cosmic background radiation.


  • reliv3@lemmy.worldtoScience Memes@mander.xyzMultiverse
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    8 months ago

    You are correct. But this doesn’t restrict the big bang theory’s ability to conclude that other universes would have been created during the event.

    Imagine analyzing a moving ball while simultaneously not knowing what caused the ball to move in the first place. We can still say a lot about this ball without the knowledge of how it started moving in the first place…

    As Hawkings once said, asking questions about what caused the big bang is fruitless. Cause and Effect assumes a timeline, and there was no timeline before the big bang, therefore, asking what caused the big bang is actually a useless question. Therefore, it’s only fruitful to analyze the effect of the big bang, and through analyzing it’s effect, we conclude that other universes were likely created during the event.

    A lot of this is based on the theoretical mathematics which define the big bang, but it’s also based on the standard cosmological model of our universe. The fact is cosmological theories already suggest the possibility of different universes which have different initial parameters. Our universe isn’t special, therefore it makes sense that other universes with different initial parameters could exist. The big bang theory aligns with this idea and suggests that different universes with different initial parameters could have also been created during the event, therefore, the multiverse.