Dredge on Steam: https://store.steampowered.com/app/1562430/DREDGE/
This video came from my stream on April 3rd, 2023. Catch me live from 9AM-2PM PT every weekday here: http://twitch.tv/Northernlion
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So I doubt NL is ever gonna look at this, but for those curious about the expansion of the universe. Scientists use something known as spectroscopy to look at distant galaxies and stars to see their chemical composition. We know from looking at known chemical compounds/elements on earth which areas of the spectrum of light that each chemical element absorbs versus which areas of the light spectrum it reflects. These are very well known, and individually unique values for each element. When we look at the stars, we can see these same unique patterns in the light that relate to known elements, however they are slightly shifted from where we would expect them to be. The direction that they move tells us that they are "red-shifted".
But how does that tell us that the stars are moving away? We know they're moving away instead of closer to us because of the doppler effect. Imagine you are standing next to a train. As it approaches you while blowing its horn, the horn is higher pitched, and after it passes you, the horn becomes lower pitched. As it is approaching the sound waves "condense", and after it leaves, the sound waves "expand" and we hear the difference. Light waves behave analogously; condensing when moving closer to us and stretching when moving further away. So combining this with the above paragraph, when the light moves away, the spectrum of reflected vs absorbed light is similar to certain elements that we see on earth, however the light wavelengths are slightly longer (more red-shifted) than we'd expect. That's how we know the universe is expanding. Because all distant stars and galaxies are red-shifted.
Hope that makes at least a little sense, so you can trust the science behind it more! (And anyone more knowledgeable please correct me if I got anything wrong)
His getting hung up on universal expansion is why they poke fun at bio majors on big bang theory
Just finished the game and I have to say I loved it! Maybe the price is a bit much if you only consider the length of the game but I think it's absolutely worth it.
Most scientifically literate streamer
NL: “My ass needs some more wood”
i feel like NL is just trying to blast into the story, meanwhile all his equipment is still meant for the first area, and i assume he made it to the third area (out of five) at the end there.
Chat doesn’t know how the universe is expanding, they just know scientists said it was. That’s why they can’t explain it.
It's kinda disillusioning honestly, it slowly feels like NL has kinda drifted into being some of the worse facets of Twitch, unable to focus on anything, unwilling to put effort into improving, only playing something in order to generate interaction and not really able to engage geniunely with anything, deeply irony poisoned. Genuinely just a bit sad after spending a long while on the channel.
The frequent glancing at chat is kinda funny (all the banter material!), but man… a full series exclusively for YouTube would pog really hard — same with the chess videos, when he used to focus a lot better, still saying random / fun stuff
This man has never worried about being too far away, until he unlocks fast travel which he immediately forgets about…
i have disliked 2 videos in my 6 years of watching youtube daily. justin bieber's baby and this one. play the gull darn game for god's sake.
Best banter ever
Every point is at the center of the universe so technically you are the center of the universe NL
I think when they say the universe is expanding they just mean the matter that makes up the universe is moving away from the point of the big bang into the empty void around it. Otherwise it just makes no sense.
The very beginning of the video he literally spends 3 minutes straight just talking 😂
Edit: just got far enough to see he goes on another 3 minute tangent from the same thing at the end 💀
sometimes I wonder if eggs head is contracting as he ages
Chat gaslighting NL into thinking everyone understands inflation except him
0:45 no you said the pasta boils at 99 and it’s at 99.
NL is the personification of an argumentative fallacy.
Bruh I serve Chilean sea bass at the restaurant I work at every night
Popping "Dredin' like Magellan" off the top of his head is why I love NL.
What if the universe isn’t expanding, we’re just shrinking 😮
"is it not possible that the universe is a bit red in all directions" made me lmao my butt off
he is remarkably bad at this. i love it.
The universe is expanding is due to a property of empty space: it can endlessly make more of itself. You don’t notice it because gravity and chemical bonds and stuff still apply, and hold you, the earth, and everything else in the galaxy in position relative to each other. Enelle’s idea of expansion is like resizing an image, and what’s actually happening is more of a “change canvas size” situation, if that makes any sense. Very distant objects, which aren’t bound by gravity to us, are moving away from us because everything in the universe is moving away from the point where the Big Bang took place.
A serious answer on "how do we know the universe is expanding and not just red": astronomers look not for the light that comes from distant galaxies, but actually for the LACK of light that comes from them, specifically, the lack of certain wavelengths of light called the absorption spectrum. This absorption spectrum is unique for each element and has very specific wavelengths of light that are not present in an otherwise black-body-type spectrum. We know the exact wavelengths for the absorption spectrum (we're specifically interested in hydrogen since it's pretty much the only element in the universe). So when astronomers look at distant stars and measure these wavelengths, it comes out that they are longer than they're supposed to be, or, in other words, the colour the star is "missing" is redder than it should be. This can only be due to the red-shift, and can't just be because galaxies far away consist of a different element – remember, absorption spectrum is unique for each element. The everyday analogy would be that a square shape you expect comes out to be smaller than you predicted, but it's still a square – not a triangle or a hexagon or a circle.
A shift of an electromagnetic wave (light) to the longer wavelengths/shorter frequency (to the "red" side) means that whatever you're looking at is getting farther away from you – same way a car's honk becoming lower when it speeds away from you instead of towards you. And this "getting farther away" is generally observed throughout the universe – not just one galaxy, not a hundred, but it's the general case. There are absolutely exceptions to this general case – the Andromeda galaxy is actually blue-shifted, meaning it's getting closer to us (and will reach us in about 2 billion years). But these exceptions are not due to the universal expansion, but due to simple kinetic laws that originated in the early universe, the consequence of which we see right now – like a billiard ball continuing to roll in one direction long after it's been struck.
As for the "what is expanding" in the universe: space itself. The distances between stuff in the universe slowly, but surely get larger and larger. It's not that your concept of "one metre" is changing with the universe – it's kind of the fabric being stretched, while your ruler is independent from it. Locally (on the scale of clusters of galaxies and smaller scales) this expansion does absolutely nothing – the gravitational attraction keeps things bound together, so even though space is expanding, things don't actually fly farther away. However on the universal scale, things do fly farther away because there's no gravitational interaction nearly strong enough to resist the expansion and keep things together. As is hopefully obvious, the universal expansion is the cause of the red-shift.
we are the universe taking a selfie.
I stop paying attention for one second and then the egg is singing panic at the disco, what timeline is this?
He forgot the best dumb twitter discourse: When a middle aged lady made chili for her college student neighbors and was ripped to shreds with comments like “what if they dont own spoons” and “you took a motherly role, thats basically incest???”
WHO GAVE THIS MAN HASTE
The universe taking a selfie is us
I'm purposely only watching a dredge video every few days or so because I never want it to end. I just can't explain how much I love the content even though some people dislike it. And to be frank, "I'm undredgewittable" has me fiending like a tweaker under a bridge. I'll hold off on that next blissful dopamine hit.
As a physicist this was the funniest shit this year. I am constantly exposed to it and end up taking the awe for granted, loved experiencing it in a Dredge playthrough of all places.
man i really should try and make it to his streams these seem like such fun convos to participate in
This game is bringing nl closer to madness by the minute
"My ass needs some more wood" – NL 2023
that whole physics rant is some of the dumbest shit i've ever heard NL say
Full playthrough or depression