#RADIOACTIVE ISOTOPES

[whats-in-a-sentence]

Homo neanderthalensis has a unique combination of features on its skull that is distinct from fossil and extant 'anatomically modern' humans. Modern research involving morphological evidence, direct isotopic dates and fossil mitochondrial DNA from three Neanderthals indicates that the Neanderthals were a separate evolutionary lineage for at least 500,000 years. However, it is unknown when and how Neanderthals' unique craniofacial features emerged.

"Human Universe" - Professor Brian Cox and Andrew Cohen

[biology-geology-beaches-india]

TSRNOSS, p 514.

[uglyabominationinthusiast]

Just ate a bowl of radioactive isotopes so that no one can take unsolicited pictures of me again.

[richo1915]

There is a golden spike hiding in a rock face outside the village of Moffat in Scotland that marks the end of the Ordovician, denoted by the appearance of these graptolite survivors—Akidograptus ascensus and Parakidograptus acuminatus, to give them their scientific names. It's not a real golden spike but a line of darker shale and a marker of these graptolites' significance as what's called an index fossil: Wherever such a fossil is found a geologist can be sure those rocks are of a certain age.

We have found the perfect marker for the Anthropocene, or the new epoch of humans, so dubbed for Homo sapiens’s world-changing impacts. It's a rather precise start date, thanks to some unusual isotopes: July 16, 1945, at 5:29 in the predawn New Mexico desert. That's when U.S. scientists exploded the world's first atomic bomb and when the human-induced radioactive isotope clock started ticking.

The three isotopes in question are cesium 137 and plutonium 239 and 240, which will take millennia or more to decay. There are no known natural sources of cesium 137. As a result of the subsequent detonations of hundreds of such weapons around the globe, there will be plenty of these isotopes still around far into the future. Like the meteorite that helped end the Cretaceous period about 65 million years ago, and possibly the reign of the dinosaurs as well, the nuclear detonation may mark for future geologists a turning point in Earth's history.

[tenth-sentence]

Both C3 and C4 plants have less ¹³C than does CO2 in the atmosphere, indicating that leaf tissues discriminate against ¹³C during photosynthesis (Figure 9.24).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[elementcattos]

Helium-2

It'd be 2 unfair not 2 include Helium II, too! He's just 2 cool

[tanadrin]

the elements at the end of the periodic table barely feel like real elements to me. idk, if you can't hold a lump of it in your hand without it exploding due to radioactivity--man, radioactivity is barely the right word, it's a loose mass of neutrons and protons that only just holds together for a few microseconds--you can't do chemistry with it. it's not a chemical element, in the sense it is not found as part of any compounds on Earth or in space, because it does not exist long enough to form chemical bonds. i get that you wanna finish out the last period, make the bottom right corner nice and square. but you're not doing chemistry. you're doing Stupid Particle Accelerator Tricks.

[miaoqing]

headcanoning pidw as the CORNIEST goofy ahh story on earth is bringing me so much joy actually:

wife #235 gasps as she looks over bingge's shoulder.

"he's riiiiiight behind me, isn't he?" bingge asks, rolling his eyes, before doing a super cool backflip and cutting off the monster's head in one fell swoop.

wife #90 slaps bingge across the face. he looks at her in baffled, befuddled, bamboozled bewilderment.

"th-that's for almost getting us killed!" she says, clenching her fists in anger. then she looks away, blushing, before stepping closer to him and quickly pressing a kiss to his lips. "and that... that's for saving me..."

"that'll show 'em," bingge says darkly, looking at the charred remains the hideout of villain of the week.

i'm too lazy to come up with more but consider also:

"if you touch one hair on her head..." (said to wife #238's kidnappers while bingge is tied up in proud immortal demon binding cables)

"we're not so different, you and i..." (said to villain #137; unfortunately this interaction brought too much depth to the story and airplane killed him in the following chapter. binghe marries his widow)

"is that all you've got?" (said after beating villain #81 to a pulp)

"i wouldn't do that if i were you..." (said to villain #129 before they accidentally activate an elaborate trap)

"looks like we've got company" (said upon seeing the villains return while uncovering the secret schemes laid out in their lair)

[shardthefuckingwhajje]

WARNING FOR FLASHING LIGHTS

astatine 210 in the cutecore pile

@elementcattos

[bedrock-to-buildheight]

This one is a bit too freaky to go here, but I want to keep my insane pairings in one place. Introducing: Hell/Lucifer

Hell grew eyes that day, to see what He threw down that shone so brightly it could feel the photons against its bones. What it saw was not a star.

It loved it. It loved him.

It–He–It was called Lucifer, and its light was not meant to exist yet, gamma rays cleaving through the form God gave Hell as he sank deeper into its confines. Oh, to have its body, shaped by a hateful hand, remolded to fit against his.

Lucifer reached out with hands that had never meant harm and left fingerprints on Hell's windows and pillars, sweet kisses haloed by burnt matter. It giggled and put half a dozen bullets, a delightful thing the the humans brought with them, into his skull. Neither of them knew how this was supposed to work, nor do they care. They traded blows as lovingly as they did songs and soft touches.

It loves him. It misses him.

It didn't know. It never killed anyone before. He's still here, isn't he? But he's stopped answering and it stopped trying to talk to him. Eventually, it stopped being so alive altogether. Gashes he left got covered up with the metal shell of elevator shafts, a canyon his light carved filled with souls, and it pushed him deeper into itself, like a knife in its guts. It thought, as much as it cared to think at all, that it might be mad at him.

The first living human found a Hellmouth. It finally learned what death was. The first living human is no longer a human or living. It thought, as much as it can think with how much it's hurting, that it misses him.

Stage two of grief is anger, its inhabitants will soon find out.

[whats-in-a-sentence]

This phenomenon can be observed when nutrients (sugars, amino acids, and so on) radio-labeled with ¹⁴C or ³H are fed to plants after one leaf or part of a leaf is treated with a cytokinin (Figure 22.21). (...) However, it is not necessary for the nutrient itself to be metabolized by the sink cells because even nonmetabolizable substrate analogs are mobilized by cytokinins (see Figure 22.21).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[kindred-spirit-93]

WHY is radiation used to cure cancer but can also causes it this is very whaaaa

ooo great question! as i understand it radiation therapy can be administered several ways (like internal and external), but in essence its essentially death star-ing the cancerous cells into oblivion. ofc its a very very controlled procedure, with plenty of tests and check ups before and after.

and the saying too much of anything is bad rings true here too, since radiation is a known mutagen, a precursor if you will to cancerous growth bc the dna gets all weird.

the same applies to chemo ofc, and whats collectively known as invasive procedures, in that as great as they are at doing their jobs its not without its fair share of risks.

and so that is how it heals but retains the capacity to harm my fren

disclaimer lol: i am but a humble medical student so anything i say is to be taken with an appropriate amount of salt. also to anyone reading more knowledable pls feel more than free to correct or share stuff :)

[rars]

her name is uranium and she's so tired :/

[befuddled-calico-whump]

Hey man did we just learn Hunter is irradiated lol

-⌚

He is, in fact, irradiated

[athetos]

“Wait, this game element is supposed to be random, but it’s not! It’s totally rigged, it just looks like it’s random. You can do shit to change and even predict the result!” Yes, rng isn’t actually random, because it’s algorithm-based. Be thankful or we wouldn’t have half the speedrunning community we have today.