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#physical evolution
wayti-blog · 3 months
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"The life space of our soul spans the entire cosmos. Identifying ourselves with this one body on earth or with our current character does not in any way give an accurate picture of the potential of our cosmic soul. Our personality only shows how far we have developed inwardly at this moment. However, that is only a snapshot. Tying someone to that moment is the same thing as saying that a school child can never become a professor. A moment in time says nothing about the true nature and the essence of a life form, and certainly not about a soul life that will still develop further for billions of years."
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yournextflame · 2 years
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Elden Ring Sigils and Color Theory
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Elden Ring magic sigils sorted by color. Long post about their lore, meanings of certain colors and what it can reveal about the story of Elden Ring under the cut.
In this post, I will be going over why it is important to have a good understanding of color and meanings associated with color in the context of lore. In a game, color is used by developers for more than just drawing the world, it’s about creating visual language, a bridge between writers and players. There are countless articles about usage of colors in videogames, but in this post I will try to reverse-engineer the process and find out the meaning behind visual symbolism and combine it with game’s equivalent of heraldic symbols - magic sigils.
In Elden Ring magic sigils have been used to represent origin of sorceries and power sources of incantations, usually they give us hints what kind of deity is worshipped by people or who created the spell. They are an invaluable source of information on history on the Lands Between. I’ve been already playing with idea of color sorting when I did the same thing with remembrances, but sigils revealed even more secrets about story and lore. How about origin of life on the Lands Between? Origin of the outer gods? But let’s not rush.
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The first category, Blue Sorcery as I called it, already shows how color sorting method is supported by the game itself. With a help of descriptions we can place the sigils in the chronological order and track the change in design over the course of story such as replacement of flowing weapon in the sigil of Eternal Cities to Carian sword. Their sigils are incredibly similar to each other, solidifying connection between Nox and Carian royal family; both factions are associated with silver, sorcery, artifical life, moons and stars.
This talisman represents the lost black moon. The moon of Nokstella was the guide of countless stars (Memory Stone)
The young astrologer gazed at the night sky as she walked. She had always chased the stars every step of her journey. Then she met the full moon—and, in time, the astrologer became a queen (Stargaizer Heirloom)
Moons played a central role in Nox and Carian culture, the circle is a base shape for both crests, however, while Raya Lucaria sigil shares similar elements with Eternal Cities and Carian emblems (glintstone sorcerers are the descendants of astrologers, a fact that the Carians remain aware of, - Preceptor's Long Gown), this part was drastically redused in size and moved on top; the central place is taken by the star and framed by a pair of cuckoos. The hue of sigil is also significantly different from cold blue tones of Nox and Carians emblems, the warm greenish tint is close to the color of primeval current spells, which were banished once Rennala became rector of the Academy.
These scholars, who sought to master Carian sorcery, instead learned to see the moon as equal to the stars. This robe, in the hue of the full moon, signifies their heresy (Lazuli Robe)
(Cuckoo Greatshield) Boasting high magic damage negation, this shield is used to hunt down mages. "Our enemy is none other than Caria itself."
So far I’m not going to delve deeper in the roots of the conflict between Carian royal family and Academy of Raya Lucaria, it’s a mere demonstration of a method and how it works. But in next paragraphs I will use it as evidence for a few theories about worldbuilding.
(thanks for clarification about Malenia’s Crest, I rewatched fight on youtube and, yes, it’s a normal Raya Lucaria sigil)
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Golden incantations is the biggest group on the list, in a way I can say that history of the Lands Between is a history of gold. Here we can see a symbolical depiction of the Erdtree, the central piece of the game both in a metaphorical and literal sense; we can track how portrayl of the Erdtree changed during Marika’s age until it was replaced altogether by the abstract emblem of the Golden Order Fundamentalism. I have a lot of to say about this group and currently working on post with a more detailed investigation, so far I will touch only basics: such as origin of life gold.
Gold in Elden Ring is more than than shine metal or a color, it’s prima materia of the Greater Will, a force of unknown origin (it’s never called 神  god or an 外なる神 outer god anywhere in EN or JP script and before jumping to conclusion wait until I’m going to observe confirmed outer gods) which is responsible for the creation of Elden Ring. From the description of Elden Stars, the most ancient incantation in this category, and Elden Remembrance we can figure out keywords associated with the Greater Will:
It is said that long ago, the Greater Will sent a golden star bearing a beast into the Lands Between, which would later become the Elden Ring/It was the vassal beast of the Greater Will and living incarnation of the concept of Order (I’d like to point that it’s “Order”, not “The Golden Order”).
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(I believe we still can see remnants of the golden star in a form of meteorite ore in Divine Towers and Sealed Tunnel near Erdtree) 
In other words, the Greater Will is about gold, Order and everything Elden. However, a common mistake is to tie the Greater Will to the Golden Order, despite the name the latter is not representative of it, even more so... original gold from the golden star wasn’t yellow.
From dialogue with Sellen we can learn that stars are containing amber, but golden stars are kind of special:
Golden amber contains the remnants of ancient life, and houses its vitality (Sellen)
And Hyetta’s speech supports futher that the Greater Will is responsible for creation of life in one way or another:
…すべては、大きなひとつから、分かたれた 分かたれ、産まれ、心を持った
けれどそれは、大いなる意志の過ちだった だから、戻さなくては���らない
All that there was divided from the One Great. Divided, born and given heart. But it was a mistake of the Greater Will (Hyetta)
So, Miyazaki pretty much unitied theories about meteorites being consensually considered to be involved in the origin of life and primordial soup:
Meteorites could have been responsible for delivering the basis of life's genetic code. Analyses of three meteorites suggest that nucleobases, the crucial components of DNA, could have formed in space and then fallen to Earth to provide the raw material for the origin of life itself
For nearly nine decades, science's favorite explanation for the origin of life has been the “primordial soup”. This is the idea that life began from a series of chemical reactions in a warm pond on Earth's surface, triggered by an external energy source such as lightning strike or ultraviolet (UV) ligh
Now if we check descriptions of Crucible Aspects and Crucible Knights items we can find out that original gold had rent tint.
Holds the power of the crucible of life, the primordial form of the Erdtree. Strengthens Aspects of the Crucible incantations (Crucible aspects incantations)
This sword is imbued with an ancient holy essence. Its red tint exemplifies the nature of primordial gold, said to be close in nature to life itself (Ordovis Greatsword, the name itself is a reference to Ordovician Period, part of the Paleozoic era, a rich variety of marine life flourished in the vast seas and the first primitive plants began to appear on land)
Ancient Erdtree/Crucible emblem is slightly reddish too, however, the modern gold is more pure and yellow, the gold of the Golden Order. The sigil changed the color too and lost the root part just like the Elden Ring itself if we compare modern depiction with Farum Azula mural:
The Golden Order was created by confining Destined Death. Thus, this new Order will be one of Death restored
But a gold is a gold, even though it’s different, but as Turtle Pope said heresy is not native to this world and everything can be cojoined:
The worship of the ancient dragons does not conflict with belief in the Erdtree. After all, this seal, and lighting itself, are both imbued with gold
Yes, the Greater Will governs everything what is golden. 
And yet, the young Miquella abandoned fundamentalism, for it could do nothing to treat Malenia's accursed rot. This was the beginning of unalloyed gold
I can already hear the raise of pitchforks from certain kind of Miquella fans, so let’s talk about outer gods and what exactly they are.
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With a surprising exception of emblem from the Scepter of the All-Knowing (Gideon, I have a few questions for you) all sigils in Red Group are assigned to the deities: outer/ancient god of Rot, outer god Formless Mother, Rykard’s immortal serpent and Fell God, who is bit tricky, it’s ambitious if  古い火の悪神 “ancient” is applied to the god or fire. The only confirmed outer gods, who didn’t made it here is an outer god of Deathbirds and Frienzied Flame. Considering theory that removal of the Destined Death from Elden Ring drained color from the god-slaying Black Flame and eclipsed sun of outer god of Deathbirds, I can suggest that original color of their sigils was red too. 
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Long story short: sigil of the outer gods and other unwelcomed deities are represented by red color and they are all related to the death, Formless Mother is about bleed, fell flame is burning, rot is decay, etc.
However, as stated in the description of Ordovis Greatsword, primordial gold of the Crucible had a red tint that was lost when Marika estabilished Golden Order by sealing away red Rune of Death; and this knowledge eventually leads to conclusion that...
Outer gods aren’t aliens. What a surprise.
They are natural powers that were screwed by the removal of Destined Death, when they got outed from the Golden Order. They are red tint of the primordial gold.
Once the concept of Death was banished from the Lands Between the elements and effects linked to it - death, decay, combustion, bleed became outer to the newly estabilished Order. There is a clear thematic difference between celestial Greater Will, who isn’t even presented on the Lands Between, and actual outer gods, who can be sealed or banished, more over there are no outer god of water, sunshine or happiness, they are all linked to the side-effects of death. When death was excluded from the Order, they were affected as well.
The thing is that gold in Elden Ring is a magical substance and changes the tint depends on the currently running Order, which is shown in the endings when Golden Tree (黄金樹 that’s how Erdtree is called in JP) acquires different hue. It’s another overlooked element of visual storytelling.
This Golden Order is something that the Elden Ring may have once represented, but not directly. It’s more about how you apply those rules and how you enforce them on the physical world and what effects they have on it, - Miyazaki in interview to gamesradar
(Golden Order isn’t direct representation of the Greater Will/Elden Ring as it was said by Miyazaki himself, it’s only one temporary set of rules)
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Elden Ring consists of runes and even newly discovered mending runes (concepts) can be added to the system (regression is the pull of meaning; that all things yearn eternally to converge) ot removed and the gold will respond to it by changing the color and reshaping reality according to the Order (causality is the pull between meanings; it is the connections that form the relationships of all things). Elden Ring - Rune of Death = yellow gold and banishment of ancient gods, who were associated with death, Elden Ring+mending rune of a choice=see example aboive.
For futher evidence that gold changes metaphysical properties and in the current state (Golden Order) preserves things from not only from dying, but decomposing too, I want to bring a few descriptions:
Fresh beast blood, glinting with gold. Material used for crafting items. Found by hunting carnivorous beasts.This glimmering blood never rots or decays ( Beast Blood)
Someone's excrement. It has a golden tinge. Material used for crafting items. Gold-tinged excrement is a highly stable substance; it doesn't dry out, nor does it lose its customary warmth or scent. For better or for worse, it remains as it is (Golden Dung; I can’t believe I’m using description of literal sh/t to prove my point)
However, from what we know only Rune of Death was sealed, and while outer gods’ influence was seriously weakened, it still existed. This is why Miquella abandoned Golden Order and was working on development of his own gold, even more pure and untainted, before he got mohgged:
Unalloyed Gold Needle: An intricately crafted needle of unalloyed gold. A ritual implement crafted to ward away the meddling of outer gods, it is thought capable of forestalling the incurable rotting sickness.
Now let me clarify: community’s favorite boogieman “influence of the evil alien outer gods/the Greater Will” isn’t a thing in a sense that there is a group of invaders from the outer space trying to enslave the Lands Between. Even thought  外なる神 is used in Japanese media culture for lovecraftian beings, we should remember that history is fabricated by the Golden Order in Marika’s favor; "outer gods” are alien to the current Order”. Same goes for the influence of the Greater Will, it was never about mind-control or whatever was projected onto it, the influence of the Greater Will is simply how Order and gold are changing course of the nature. 
Last thing I want to add is that influence of the outer gods isn’t always about destructive powers (Order of Rot is about decay and rebirth), but I’ll leave it for a dedicated post.
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In Mixed Group I put sigils with unique or unknown colors.
In my first draft Dragon Communion was placed in the Red Group for the intense hue of sigil, but upon futher research I decided to move it here. The power of Dragon Communion incantations doesn’t stem from any patron god or the assigned star (unless I missed something); they are scaling from arcane, an inner force of the caster. 
Violet is an interesting choice for Gravity sigil because this color, albeit with the less intence hue, is used for sleep status and associated items. 
I like how yellow color of Frenzied Flame is similar to the gold of the Greater Will, carrying the theme of duality, yet the shape of the sigil is distorted and assymetrical. In fact, designs of the ancient sigils usually is far less complex than intricate shapes of newer ones (with a few exceptions). Just to be clear, even though influence of the Flame of Frenzy can be cleared by Miquella’s needle, the game never calls it an outer god. It’s a matter of semantics, but I guess that unlike crew from the Red Group it was never booted from the Order since Chaos and Order can’t naturally coexist, but there are a lot ot of to speculate about, considering drastic changes in Frenzied Flame quest and lore.
Golden star in the centre of Bestial sigil reminds of Cinquedea dagger (Short sword given to high ranking clergymen of Farum Azula. The design celebrates a beast's five fingers, symbolic of the intelligence once granted upon their kind), which shows beast’s arm holding golden slab.
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So, Death spells. I believe that both Black Flame incantations and Death Sorcery of Deathbird outer god were affected by confining of Destined Death.
The black flame could once slay gods. But when Maliketh sealed Destined Death, the true power of the black flame was lost
Storied sword and treasure of Castle Sol that depicts an eclipsed sun drained of color.The eclipsed sun, drained of color, is the protective star of soulless demigods. It aids the mausoleum knights by keeping Destined Death at bay. Mausoleum Knight Armor: The wing-shaped ornaments on its back evoke the Deathbird
And, as I’ve been already pointing in a different post, death of Godwyn brought back forgotten death sorcery that almost ceased from existance during age of immortality, but was rediscovered
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Death in the Lands Between is incredibly complex subject and deserves a series of posts, even though I believe there should be DLC because so far all lore related to it seems to be incomprehensible.
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Unmarkered sorceries don’t have background sigil, but they all share something in common. They originated from the Mountaintops of Giants:
Zamor Ice Storm: Ice sorcery of the Town of Zamor.Strike the ground with the staff to create a freezing tornado. Charging enhances potency. Cloaked in icy tempests, the knights of Zamor have challenged the Fire Giants since ancient times.
Briars of Sin : An aberrant sorcery, discovered along with red glintstone by those exiled to the north for their crimes.The Academy reviles this sorcery, which draws its power from faith
Founding Rain of Stars: The eldest primeval sorcery, said to have been discovered by an ancient astrologer. A sorcery of legendary status.The glimpse of the primeval current that the astrologer saw became real, and the stars' amber rained down on this land. Sword of Night and Flame: Astrologers, who preceded the sorcerers, established themselves in mountaintops that nearly touched the sky, and considered the Fire Giants their neighbors.
Another interesting details to consider is that they are all in some ways are unwelcomed or straight up heretical. It reminds me of relationships between Golden Order and remnanats of the Crucible. Aberrant sorcery is a mark of sin, primeval current was banished and cold sorcery is veiled in occult mystery:
The snowy crone taught the young Ranni to fear the dark moon as she imparted her cold sorcery.
I guess Ranni’s secret mentor is called snowy crone for a reason.
That’s being said, everything I wrote is a subject to change as DLC may reveal more details or I will reconsider some parts under futher research. But overall I think it was an interesting experiment.
読んでくれてありがと
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ramenwithbroccoli · 4 months
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not to be controversial on main, but i really do feel like way more people would enjoy maths if someone properly explained it to them & they didn't have a hanging threat of failing an exam above their heads
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Simeis 147
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Sometimes known as the Spaghetti Nebula, Simeis 147 is the remnant of a supernova that occurred 40,000 years ago. The glowing filaments of this composite image show hydrogen and oxygen in red and blue, respectively. (Image credit: S. Vetter; via APOD) Read the full article
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bongo-clash · 2 years
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Peacock Au Part 1
Okay so Big Huge credit to @stealingyourbones for letting me do my own take on their amazing eldritch Danny idea!!!! This started out as me just doing a drawing but then I ended up with a whole DPxDC fic that I'll be posting the part two for at some point!!! Anyway, here's the vague designs:
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And here's the part one of the fic under the cut!!! :D (Edit: Part 2 is Here!!)
There’s a Lazarus Pit forming underneath Gotham. Normally, this would not concern John Constantine at all, because it’s Gotham, therefore Bat territory therefore not his problem, and honestly he has his own things to worry about. Unfortunately for him, however, the infamous Dark Knight has somehow gotten it into his head that he can do something about it and, Hell, he’d said it would be a ‘big favour’, which meant the man really must be desperate; had to have been in the first place, he supposed, to have even bothered with John in the first place. 
Still, he’d almost kind of forgotten what a huge mess any kind of favour for Batman could be, and thus, he now holds possession of a book that is probably going to get him killed. 
Whether the actual book itself wants to kill him is up for debate, but Constantine has read the contents of this particular Book of Summonings and nothing in here seems remotely safe. He’s absolutely going to be hiding this away somewhere deep in the archives of the archives of the Justice League watchtower with an incredibly pointed ‘DO NOT TOUCH’ on it once he’s done with this, but for now, it’s the only thing he’s got in the way of sorting out this Pit problem. 
There’s an entity that exists, this book claims, that keeps the balance between realms. ‘Closes doors’, apparently, and the doors the pages depict certainly look like a Lazarus Pit. This is brilliant news, obviously, but the book doesn’t describe the entity itself at all beyond that; barely any of the other entries are as vague as this, and that plus some of the frankly bizarre sigils he’s having to draw to summon the damn thing are giving him no comfort. The only remotely comforting thing about it is that the ritual doesn’t require any blood- which either means the entity is benign, or it wants something more valuable than blood. 
…Okay, maybe not that comforting, actually. 
But, before he can consider that maybe this wasn’t his best idea and backing out would be for the best, the sigils flare with light, and Constantine squints to keep track of the way they activate, desperate for any indication of what he’s managed to summon with that stupid book. 
His feet feel feathery against the ground, like they’re barely tethered by gravity and just waiting to float away, and perhaps the seeming lack of atmosphere is fitting with how dust like stars lift from the summoning circle, bringing with them intercepting layers of purple-blue-pink-white, galaxies and nebulae being peeled off the floor. It comes with a sound- something whistling, almost. Seeming hollow, between a shriek and a bell ringing, or maybe more musical than that. It seems to change every moment he tries to focus on it, as if it’s something his ears can’t really hear but his brain is desperate to process, painful to try. 
And then, the entity begins to form. 
Unnoticeably at first, a white glow drifts forming in the centre. It congeals as Constantine’s gaze finally fixates on it, layers forming like jellyfish trails, or flowers, or peacock feathers with runic circles at the tips, fading smaller and smaller as they reach the centre, and a thing akin to a body unfolds into view at the front, a centrepiece. A child’s image of a shadow in opalescence, a strange curving feature where a neck might be, and searing-green spots of varying sizes scattered along the space where cheeks and eyes could’ve been, fading up and down across the lower-half of the ‘face’ and into the ‘hair’. He barely understands what he’s looking at, but maybe that’s the point. 
The sound of a thunderstorm rings across the room, and the curve of the neck unfolds, and it’s an eye, and the tips of a thousand twisted, cosmic peacock feathers become eyes as well, if they weren’t always. They move, wavering, either lashing or flickering from visibility. 
“And what is this?” The voice is a kaleidoscope, echoing off and from every corner of the room, and when they speak, infinite eyes become infinite mouths, too many teeth barely contained by the edges of what seem vaguely like frostbitten lips. To have something even remotely human suddenly etch itself onto the entity is somehow worse than the parts he can’t comprehend. “Who are you, to have summoned me, and seem so afraid?”
Constantine wishes, maybe for the first time, that it hadn’t been an obligation to do this alone; he’s never wanted Batman or one of the Light members with him more than now. It’s a difficult thing, almost impossible, to shake off the speechlessness. It’s a wonder that it’s possible at all, with how the room seems to have been twisted into a vacuum. “I was told you could- you could help with the pits?”
“The pits. There are many pits.”
God, this is creepy. “The Lazarus pits to, uh, to be specific. There’s a huge one cropping up under Gotham that’s not supposed to be there, and the local- I mean, the locals are getting antsy about it. …I heard you can take care of them.”
“I can smell its blood between the gaps of atmosphere, encircling. You, whose soul is bound in so many directions, who may be pulled apart like meat in time- can you sense it? Does it draw you?” John doesn’t know how this- this thing knows that, but he’s scared asking will invoke some kind of consequence, and more and more he’s wondering why the Hell he decided to do Batman this favour. He feels exposed. 
“Uh… no, I don’t think so. But can you fix it?”
“Yes.”
“…Will you fix it?”
The chill is getting to him. Goosebumps are running across his arms like a livewire, and he’s never doing anyone a favour ever again. The entity makes an approximation of a hum, his ears shriek with whale song and stars, and after a pause, everything switching up and down on itself, the peacock eyes form into huge, reaching hands. For a second, Constantine’s whole body freezes with terror, because he’s petrified the thing’s going to grab him, but then the arms tumble phasing into the ground, and the green spots on their ‘face’ flare with a supernova glow and they make another piercing noise, chiming or trilling. 
A long moment later, the hands slowly return to the entity’s back, and fade into the peacock feathers or jellyfish bells or whatever they were before, blinking at him. “It is gone.”
“Uh… cheers?”
“It will not return, but this place shall see its dead for some time. Try not to look.”
This is maybe the worst day of Constantine’s life. “Can I- uh, yeah, great advice. ‘Appreciate it. But, can I ask just, y’know, what you are? Or not.”
“That is up to you.” They say, and though the eyes that appear briefly between sentences bely or reveal no expression, it feels scrutinising. “What is it that closes doors? Is it alive?”
He hates riddles. He hates riddles and he hates cosmic horrors and he hates eldritch entities and he hates Batman for getting him to agree to this horrible favour. He wants to go back to the House of Mystery and pass out for long enough that this whole thing becomes a dream. “Fair enough! Forget I asked- cheers for sorting out that pit, though. Uh, don’t suppose you’ll just let me go on my way or anything now.”
“I know of your Bat.” 
Oh dear. Constantine’s stomach sinks like a shipwreck into the Mariana Trench, but the entity moves on like they’d never even said it. “I will recede, and find you in time, perhaps both. You will know when I am coming, and I will find my recompense.”
And just like that, their whole form shimmers into clouds and pearls and smoke and mirrors, and they fade back into the runes that summoned them like tap water down the drain. The galaxies they’d formulated within the confines of the room fold back in on themselves and turn to whispers and then nothing, but the feeling persists on his skin long after weight has settled back onto his bones. He hadn’t known a thing like that existed until now. He doesn’t know what it can do, doesn’t know how all-encompassing it truly is. 
And he owes it a favour. 
Crap. 
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queerism1969 · 2 years
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mindblowingscience · 8 months
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The rotating shoulders and extending elbows that allow humans to reach for a high shelf or toss a ball with friends may have first evolved as a natural braking system for our primate ancestors who simply needed to get out of trees without dying. Dartmouth researchers report that apes and early humans likely evolved free-moving shoulders and flexible elbows to slow their descent from trees as gravity pulled on their heavier bodies. The paper, "Downclimbing and the evolution of ape forelimb morphologies," is published in Royal Society Open Science. When early humans left forests for the grassy savanna, the researchers say, their versatile appendages were essential for gathering food and deploying tools for hunting and defense.
Continue Reading.
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spotsupstuff · 23 days
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Cap's got a new voice claim! feat. a tiny bit of Sparrows n her's unchanged vc because 1. it's cute to hear them together and 2. I snorted. The vibes are so different
[songs: So Familiar by Jean Castel and Driving Myself Home by Rose Betts]
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theexclusivestory · 28 days
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Stellar Evolution: An In-Depth Journey into the Lifecycle of Stars
Stellar evolution tells the fascinating story of how stars are born, change, and eventually die. It's a process that takes billions of years and has a big impact on the universe and even life itself. In this article, we'll explore the journey stars take throughout their lives, looking at the different stages they go through and what causes them. Let's dive into the details of stellar evolution and understand how these celestial objects live and evolve.
Formation of Stars: Birth from Cosmic Clouds
Stars begin their journey in huge clouds of gas and dust called nebulae. These clouds are like giant factories that have all the ingredients needed to make a star. When something like a shockwave or a disturbance happens, parts of the nebula start to get denser. This denser area is where a new star begins to form. It starts as what we call a protostar. As more and more material gets pulled in by gravity, the protostar grows bigger and denser. Eventually, it becomes so dense and hot that nuclear fusion starts happening in its core. This is when the star "turns on" and starts shining.
The Main Sequence Phase: A Star's Brightest Period
When a star begins nuclear fusion, it enters its main phase, which is its brightest time. In this phase, hydrogen atoms in the star's center combine to form helium, releasing a lot of energy. This energy pushes outward, balancing the star's gravity and, keeping it stable. How long this phase lasts depends on how big the star is. Bigger stars go through this phase faster than smaller ones.
Stellar Metamorphosis: Beyond the Main Sequence
Once a star runs out of its hydrogen fuel in the center, it starts changing and moves away from its main form. What happens next depends on how big the star is to begin with. Different-sized stars go through different changes, each with its own special things happening.
Red Giant Phase: The Stellar Expansion
When stars like our Sun start running out of hydrogen, they enter a phase called the red giant phase. At this point, the star gets bigger and expands outward, but its core gets smaller and hotter. This makes the outer layers of the star glow red. Inside the star, helium starts fusing together, creating even more energy. This red giant phase shows that the star is getting closer to the end of its life.
Planetary Nebulae and White Dwarfs
When a star becomes a red giant, it swells up and eventually sheds its outer layers into space. This creates a beautiful cloud called a planetary nebula. What's left behind is the core of the star, which becomes a white dwarf. A white dwarf is a small, dense object about the size of Earth. It's made mostly of a special kind of matter called electron-degenerate matter. Over a very long time, white dwarfs cool down and become less and less bright. Eventually, they become invisible and mark the end of the star's life for smaller stars.
Supernovae and Neutron Stars: The Fate of Massive Stars
When big stars run out of fuel, they collapse suddenly, causing a massive explosion called a supernova. This explosion is so bright that it can outshine entire galaxies. During this explosion, heavy elements made inside the star's core are scattered into space, which later helps in forming new stars.
After a supernova, the core of the big star can shrink even more, forming a neutron star. Neutron stars are very small, like cities, and are made mostly of tightly packed neutrons. They have strong magnetic fields and spin very fast, leading to interesting things like pulsars and magnetars.
Black Holes: The Mysterious End
When really big stars run out of fuel, something incredible happens. They collapse under their own gravity, squeezing down into a tiny, super-dense point. This creates something called a black hole. Black holes are mighty, with gravity so strong that not even light can escape from them. They're like cosmic vacuum cleaners, sucking in everything around them. Black holes are mysterious and fascinating, and they impact how galaxies work, shaping the universe in a really big way.
Conclusion
Stellar evolution is like a never-ending story of how stars are born and eventually fade away. It starts with the peaceful formation of baby stars in cloudy areas of space called stellar nurseries. Then, stars grow and shine brightly during their main life phase. But as they run out of fuel, some stars become red giants, swelling in size. Eventually, smaller stars become white dwarfs, while bigger ones explode into supernovae, scattering elements into space. This process helps shape the universe, showing us how everything in space is connected. By studying stars, we learn more about where we come from and our role in the vast cosmos.
FAQs
Who came up with stellar evolution? In the early 1900s, two astronomers named Ejnar Hertzsprung and Henry Norris Russell found a helpful way to compare different stars. They called it the Hertzsprung-Russell (H-R) Diagram. It's like a big chart where scientists can see how stars compare to each other based on their brightness and temperature. This diagram has been super useful in understanding more about stars and how they work.
What are the elements of stellar evolution? These are some of the building blocks found in space i.e. hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, chlorine, sodium, magnesium, potassium, calcium, and iron.
What is the lifetime of a star? Very big stars burn through their fuel fast, so they don't live very long, maybe just a few hundred thousand years. But smaller stars use their fuel more slowly, so they can shine for billions of years. However, no matter how big or small a star is, eventually, it starts running out of hydrogen, which is what keeps it shining.
What is the stellar life cycle? Stars go through a cycle of being born, burning fuel, and spreading out material when they die. This cycle is ongoing and helps create elements that fill the universe. Depending on how much stuff a star has (its mass), it follows a different path in its life.
What are the 7 types of stars? Stars come in different types, and scientists classify them based on how hot they are. There are seven groups, starting with the hottest and ending with the coolest. They are named O, B, A, F, G, K, and M stars. O stars are the hottest and brightest, while M stars are the coolest and dimmest.
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wayti-blog · 4 months
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True teaching is not an accumulation of knowledge; it is an awaking of consciousness which goes through successive stages. Ancient Egyptian Proverb
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By: Dyani Lewis
Published: May 31, 2023
In India, children under 16 returning to school this month at the start of the school year will no longer be taught about evolution, the periodic table of elements or sources of energy.
The news that evolution would be cut from the curriculum for students aged 15–16 was widely reported last month, when thousands of people signed a petition in protest. But official guidance has revealed that a chapter on the periodic table will be cut, too, along with other foundational topics such as sources of energy and environmental sustainability. Younger learners will no longer be taught certain pollution- and climate-related topics, and there are cuts to biology, chemistry, geography, mathematics and physics subjects for older school students.
Overall, the changes affect some 134 million 11–18-year-olds in India’s schools. The extent of what has changed became clearer last month when the National Council of Educational Research and Training (NCERT) — the public body that develops the Indian school curriculum and textbooks — released textbooks for the new academic year that started in May.
Researchers, including those who study science education, are shocked. “Anybody who’s trying to teach biology without dealing with evolution is not teaching biology as we currently understand it,” says Jonathan Osborne, a science-education researcher at Stanford University in California. “It’s that fundamental to biology.” The periodic table explains how life’s building blocks combine to generate substances with vastly different properties, he adds, and “is one of the great intellectual achievements of chemists”.
Mythili Ramchand, a science-teacher trainer at the Tata Institute of Social Sciences in Mumbai, India, says that “everything related to water, air pollution, resource management has been removed. “I don’t see how conservation of water, and air [pollution], is not relevant for us. It’s all the more so currently,” she adds. A chapter on different sources of energy — from fossil fuels to renewables — has also been removed. “That’s a bit strange, quite honestly, given the relevance in today’s world,” says Osborne.
More than 4,500 scientists, teachers and science communicators have signed an appeal organized by Breakthrough Science Society, a campaign group based in Kolkata, India, to reinstate the axed content on evolution.
NCERT has not responded to the appeal. And although it relied on expert committees to oversee the changes, it has not yet engaged with parents and teachers to explain its rationale for making them. NCERT also did not reply to Nature’s request for comment.
Chapters closed
A chapter on the periodic table of elements has been removed from the syllabus for class-10 students, who are typically 15–16 years old. Whole chapters on sources of energy and the sustainable management of natural resources have also been removed.
A small section on Michael Faraday’s contributions to the understanding of electricity and magnetism in the nineteenth century has also been stripped from the class-10 syllabus. In non-science content, chapters on democracy and diversity; political parties; and challenges to democracy have been scrapped. And a chapter on the industrial revolution has been removed for older students.
In explaining its changes, NCERT states on its website that it considered whether content overlapped with similar content covered elsewhere, the difficulty of the content, and whether the content was irrelevant. It also aims to provide opportunities for experiential learning and creativity.
NCERT announced the cuts last year, saying that they would ease pressures on students studying online during the COVID-19 pandemic. Amitabh Joshi, an evolutionary biologist at Jawaharlal Nehru Centre for Advanced Scientific Research in Bengaluru, India, says that science teachers and researchers expected that the content would be reinstated once students returned to classrooms. Instead, the NCERT shocked everyone by printing textbooks for the new academic year with a statement that the changes will remain for the next two academic years, in line with India’s revised education policy approved by government in July 2020.
“The idea [behind the new policy] is that you make students ask questions,” says Anindita Bhadra, an evolutionary biologist at the Indian Institute of Science Education and Research in Kolkata. But she says that removing fundamental concepts is likely to stifle curiosity, rather than encourage it. “The way this is being done, by saying ‘drop content and teach less’”, she says, “that’s not the way you do it”.
Evolution axed
Science educators are particularly concerned about the removal of evolution. A chapter on diversity in living organisms and one called ‘Why do we fall ill’ has been removed from the syllabus for class-9 students, who are typically 14–15 years old. Darwin’s contributions to evolution, how fossils form and human evolution have all been removed from the chapter on heredity and evolution for class-10 pupils. That chapter is now called just ‘Heredity’. Evolution, says Joshi, is essential to understanding human diversity and “our place in the world”.
In India, class 10 is the last year in which science is taught to every student. Only students who elect to study biology in the final two years of education (before university) will learn about the topic.
Joshi says that the curriculum revision process has lacked transparency. But in the case of evolution, “more religious groups in India are beginning to take anti-evolution stances”, he says. Some members of the public also think that evolution lacks relevance outside academic institutions.
Aditya Mukherjee, a historian at Jawaharlal Nehru University in New Dehli, says that changes to the curriculum are being driven by Rashtriya Swayamsevak Sangh (RSS), a mass-membership volunteer organization that has close ties to India’s governing Bharatiya Janata Party. The RSS feels that Hinduism is under threat from India’s other religions and cultures.
“There is a movement away from rational thinking, against the enlightenment and Western ideas” in India, adds Sucheta Mahajan, a historian at Jawaharlal Nehru University who collaborates with Mukherjee on studies of RSS influence on school texts. Evolution conflicts with creation stories, adds Mukherjee. History is the main target, but “science is one of the victims”, she adds.
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Well, at least it'll put them on par with the anti-science and biology-denial of US classrooms. China no longer has anything to worry about.
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mintierose · 4 months
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The Qsmp fandom referring to the eye guy as “the watcher” is triggering my fight or flight
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Horizontober day 11: Royal
I didn't forget this time I just had to design two entire characters. It's a Persona 5 Royal crossover featuring our very own Sunhawk Talanah Khane Padish! Doing Persona designs is really hard for me even though I love the game and the aesthetics... I did my best! Talanah's image of rebellion is a cowboy/outlaw.
This is the most niche thing I could have possibly drawn but my target audience is myself so... Deal with it sorry lol
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Never-before-seen way to annihilate a star Most stars in the Universe die in predictable ways, depending on their mass. Relatively low-mass stars like our Sun slough off their outer layers in old age and eventually fade to become white dwarf stars. More massive stars burn brighter and die sooner in cataclysmic supernova explosions, creating ultradense objects like neutron stars and black holes. If two such stellar remnants form a binary system, they also can eventually collide. New research, however, points to a long-hypothesized, but never-before-seen, fourth option. While searching for the origins of a long-duration gamma-ray burst (GRB), astronomers using the Gemini South telescope in Chile, part of the International Gemini Observatory operated by NSF’s NOIRLab, and other telescopes [1], have uncovered evidence of a demolition-derby-like collision of stars or stellar remnants in the chaotic and densely packed region near an ancient galaxy’s supermassive black hole. “These new results show that stars can meet their demise in some of the densest regions of the Universe where they can be driven to collide,” said Andrew Levan, an astronomer with Radboud University in The Netherlands and lead author of a paper appearing in the journal Nature Astronomy. “This is exciting for understanding how stars die and for answering other questions, such as what unexpected sources might create gravitational waves that we could detect on Earth.” Ancient galaxies are long past their star-forming prime and would have few, if any, remaining giant stars, the principal source of long GRBs. Their cores, however, are teeming with stars and a menagerie of ultra-dense stellar remnants, such as white dwarf stars, neutron stars, and black holes. Astronomers have long suspected that in the turbulent beehive of activity surrounding a supermassive black hole, it would only be a matter of time until two stellar objects collide to produce a GRB. Evidence for that type of merger, however, has been elusive. The first hints that such an event had occurred were seen on 19 October 2019 when NASA’s Neil Gehrels Swift Observatory detected a bright flash of gamma rays that lasted for a little more than one minute. Any GRB lasting more than two seconds is considered “long.” Such bursts typically come from the supernova death of stars at least 10 times the mass of our Sun — but not always. The researchers then used Gemini South to make long-term observations of the GRB’s fading afterglow to learn more about its origins. The observations allowed the astronomers to pinpoint the location of the GRB to a region less than 100 light-years from the nucleus of an ancient galaxy, which placed it very near the galaxy’s supermassive black hole. The researchers also found no evidence of a corresponding supernova, which would leave its imprint on the light studied by Gemini South. “Our follow-up observation told us that rather than being a massive star collapsing, the burst was most likely caused by the merger of two compact objects,” said Levan. “By pinpointing its location to the center of a previously identified ancient galaxy, we had the first tantalizing evidence of a new pathway for stars to meet their demise.” In normal galactic environments, the production of long GRBs from colliding stellar remnants such as neutron stars and black holes is thought to be vanishingly rare. The cores of ancient galaxies, however, are anything but normal and there may be a million or more stars crammed into a region just a few light-years across. Such extreme population density may be great enough that occasional stellar collisions can occur, especially under the titanic gravitational influence of a supermassive black hole, which would perturb the motions of stars and send them careening in random directions. Eventually, these wayward stars would intersect and merge, triggering a titanic explosion that could be observed from vast cosmic distances. It is possible that such events occur routinely in similarly crowded regions across the Universe but have gone unnoticed until this point. A possible reason for their obscurity is that galactic centers are brimming with dust and gas, which could obscure both the initial flash of the GRB and the resulting afterglow. This particular GRB, identified as GRB 191019A, may be a rare exception, allowing astronomers to detect the burst and study its after effects. The researchers would like to discover more of these events. Their hope is to match a GRB detection with a corresponding gravitational-wave detection, which would reveal more about their true nature and confirm their origins, even in the murkiest of environments. The Vera C. Rubin Observatory, when it comes online in 2025, will be invaluable in this kind of research. “Studying gamma-ray bursts like these is a great example of how the field is really advanced by many facilities working together, from the detection of the GRB, to the discoveries of afterglows and distances with telescopes like Gemini, through to detailed dissection of events with observations across the electromagnetic spectrum,” said Levan. “These observations add to Gemini’s rich heritage developing our understanding of stellar evolution,” says Martin Still, NSF’s program director for the International Gemini Observatory. “The time sensitive observations are a testament to Gemini’s nimble operations and sensitivity to distant, dynamic events across the Universe.” IMAGE....Astronomers studying a powerful gamma-ray burst (GRB) with the International Gemini Observatory, operated by NSF’s NOIRLab, may have observed a never-before-seen way to destroy a star. Unlike most GRBs, which are caused by exploding massive stars or the chance mergers of neutron stars, astronomers have concluded that this GRB came instead from the collision of stars or stellar remnants in the jam-packed environment surrounding a supermassive black hole at the core of an ancient galaxy. CREDIT International Gemini Observatory/NOIRLab/NSF/AURA/M. Garlick/M. Zamani
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gurufallon · 2 months
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Livin’ Life Fluidly.
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