Recent comments in /f/todayilearned

SCWarriors44 t1_jav5hgj wrote

Right…the device I’m typing on was created by people who didn’t want to accept shitty situations so they made a better one. I mean most our tech giants today literally started out in garages with nothing. They pulled themselves up and made things better for everyone while everyone else was complaining, doing nothing, or didn’t even know any better to know things weren’t as good as they could be.

I don’t know maybe you’re a marvel fan. Literally every hero story in the MCU has been someone being in a shitty situation and then pulling themselves up by the bootstraps to get out of it. They made things better for themselves and then eventually for others. That’s why they’re hero’s.

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SCWarriors44 t1_jav4ww0 wrote

Read my damn comment again and just try to understand at least one of the sentences. Actions. I am responsible for my actions. Nowhere did I ever claim whatever junk you just spewed out. Do better.

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SCWarriors44 t1_jav4n64 wrote

And how is it wrong? People who want to live in a society clearly want to have an easier life full of pleasures, where the responsibility of themselves is lessened to the point where they don’t have to worry. Where they could purely live off the actions of others with no other positive input. A leach. Tell me how that’s wrong.

I’ve lived in the country have my life and the city half my life. The words I’d use to describe those in the country is giving, hard working, friendly, and family. Those in the city would be selfish, greedy, ignorant, and lazy. And I’m really not trying to be rude, just saying how I saw it. Of course not everyone fit that bill but enough did to allow me to generalize. Of course not everyone fit that top paragraph either but most did and the worst of them absolutely did. It was honestly quite sad to see so many people whining about their situations with no passion or want to put forth any effort on their parts to get out of it when they are absolutely capable of doing so, except they believe they can’t because of these self-made limitations. It’s sad man.

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SCWarriors44 t1_jav3tx8 wrote

Thanks for the long explanation. You’re very right that I believe there is a severe misunderstanding going on here. Picking yourself up by your bootstraps said to anyone regardless of how they view things isn’t ever meant to be cruel or an insult or insensitive to their situation (to anyone reading this who opposes the saying). As for your scenario with the dead wife, that’s one situation for example you probably wouldn’t even say something like that but if you did the intent would be out of care, like hey pick yourself up bud, I know it sucks and it’ll never get better but let’s get your mind on something else, find a way to move on. Like let’s be tough but in a good way.

But then again that phrase would hardly ever be used in that scenario, it’s really only ever meant to be motivating as you said or as you said again as a response to noticing someone isn’t doing enough for themselves, so then it’s more like hey wake up, trying to make them realize that by living in that doomer mindset isn’t going to fix anything. You gotta take action. I think of it also as a teach a man to fish vs giving him fish kind of thing. I think you should teach a man to fish whereas I see the other side just complaining that they don’t like the fish or that there isn’t enough fish or what have you. And as I said before I only want to help those who want to help themselves. If you don’t want to pick yourself up then there is no use in me helping you, you’ll be right back in the same spot again then kind of thing. That tells me you don’t want to grow or improve then. But hey again thanks for the long, honest, and respectful response unlike some of the others.

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Ameisen t1_jatk04m wrote

I imagine that it changed in 1524 and 1551 when the Imperial gulden was redefined (though they may have charged in Reichsthaler instead), in 1754 when the South German gulden was introduced, 1873 when the Imperial German Goldmark replaced it, 1914 when the Papiermark replaced that, 1924 when the Rentenmark and then the Reichsmark replaced that, 1948 when the Deutsche Mark replaced that, and lastly in 2002 when the Euro replaced that.

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Aye_Eye_Captain t1_jatgjgg wrote

The Inca were also among the first bird conservationists. Seabird guano was so essential as fertilizer for agricultural fields that bird colonies on offshore islands were heavily protected. Disturbing the colonies was punishable by death.

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Fake_William_Shatner t1_jatfjv7 wrote

>I'm assuming u understand gravity, could u eli5 that for me,

Gravity, as per the most popular "official" theories in physics describes it. Is not in itself a force, but is the result of what they call a "Time Gradient." Before this, relativity and gravity wells distorting light had been described as similar to how a long shoreline causes waves to reach a beach in parallel. It's a similar concept. The leading edge of a photon or any object is slowed down by time itself -- as objects with mass have an effect on the rate of time. Enough of this "gravity well" and eventually objects or light falls into it. A video might do a better job of explaining this; https://www.youtube.com/watch?v=-OkwGDKoY0o

But the "curve" they talk about in space (or the gravity well), is the relative difference in rate of time. If you put a clock on Earth, and one in empty space without relative acceleration, the clock in space will move faster.

It doesn't stop there. If you REALLY want to understand the difference between a magnetic field and an electric current, it's all about relativity. If an electron is spinning about a metal pole -- it becomes a magnetic field. Here is a good explanation; https://www.youtube.com/watch?v=1TKSfAkWWN0&t=3s

​

Since I grabbed a book on relativity when I was a kid until about a year ago, it's been bothering me how relativity doesn't really work in a complex model with one space-time curve. So I always thought it was incomplete. Relativity itself is relative depending on which thing you are measuring. Which I doubt would trouble the better versed physicists. It's like having a gear spinning another gear. No matter how fast the driving gear goes, the other gear turns at the same rate relative to it. However -- that doesn't work when you have all the gears at every angle connected in the Universe. Relativity cannot allow for anything to move with one value for the spacetime curve. There is no one value of time, nor is there any way to determine if you are coming or going from an object. Einstein discovered his theory of relativity trying to figure out how particles created by cosmic rays striking the atmosphere that decayed so rapidly they didn't have time to reach the earth, regularly could make the trip. So he realized that the decay rate of the particle to itself was not changing, but it was extended in our time frame due to its relative acceleration. Their theory posits Earth's time is slowed a tiny bit in the same process so you can't say which is accelerating towards the other -- it's all from the Observers point of view. However, the smaller particle is getting a greater slowdown in its observed time than the Earth is (relative mass). But -- the Earth is also just a bunch of particles. If all physics is local (a principle and fundamental theory other than ideas of entanglement and spooky at a distance might suggest), how is there cumulative effects? Meanwhile, the particle that lasts longer than it should, is moving away at high velocity from something else. So from a certain point of view, space is expanding between objects hurtling at high speed towards each other, and contracting as they retreat. And, that goes both ways when we talk about stars. However, the effect of relativity between high velocity particles at different vectors has to be huge. There is an aggregate value of spacetime curvature that is the baseline, and then another relative curve between each moving particle. So space-time is very bumpy and is not experienced the same way by each observer. Just on average.

A magnetic field exerts a force only on moving particles. Thus cosmic rays are diverted as they move towards the earth by our magnetic field, in sort of a reverse of how gravity attracts larger, slower particles. The force is proportional to the velocity. And, isn't velocity about relative time?

Simply put; things taking time to get from point A to B is why we have space. If we could move at infinite speed -- there would be no distance or "space."

So when I think about relativity, it requires more than one TIME and that everything on a different vector has a different relative time in relationship to everything else -- so then the "slope" of the gravity well is a average value -- it's not the same slope for all things.

I'm going a bit further and saying that a lot of our confusion is seeing the Universe from a 4 dimensional perspective (X Y and Z dimensions plus Time). Relativity then is the appearance that time is the same rate from your local point of view. But, at a distance, we can see things violate relativity. This is explained by space being able to violate the "law of relativity" by moving. But what is space?

So I think I've got some ideas around that which I haven't heard from others. It's where quantum physics meets general relativity.

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96_doomer t1_jat7ha9 wrote

OK there's a lot to unpack there, and if i responded to each of those points, it might take quite some time. I'm not saying those are all boring stuff, would like to discuss about some of those, but for now, I'm assuming u understand gravity, could u eli5 that for me, like explain in very simple terms. Cause I don't seem to understand what gravity is or like why it works the way it does, kinda like magnets, I don't understand what that is either or what makes it work that way. So let's start there lol. Please tell me about gravity, but as I mentioned before, try explaining in a very simple way like u would to a child, so I may try and understand it. No, I'm not joking lol, I'm curious, cause my brain don't have enough knowledge or understanding to get an idea of what gravity is, like u know, when it finally clicks.

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