Yeah. The magnet quench flash boils a bunch of helium which is itself expensive, and presents a nice asphyxiation hazard as well. And then, assuming the quench damaged nothing, you have to set up the magnet again by getting the coils back down to superconducting temperatures… to get there, you end up boiling off a lot more helium. And then you have have to bring an engineer in to get the electrons spinning through the coil again and wait for the wobbles in the current to stabilize.

Or so I think. I work with NMR spectrometers and not MRIs, but it’s essentially the same technology.

* millimolar. aka millimoles/liter

inhales

Complex 1a was prepared according to well-known synthetic procedures. The reduction potential of the complex was increased due to the nephelauxetic expansion of the occupied FMOs induced by photolytic epimerization of the auxiliary tetrahydrophosphazolidine sulfide ligand to enable a strongly σ-donating dihaptic coordination mode.

translation: we made molecule 1a, we shouldn’t need to tell you how, it’s obvious, lmao, git gud. the molecule became less likely to gain extra electrons because shining light on it made one of its weird-ass totally-not-bullshit parts wiggle around a bit so that it could bind more strongly to the metal atom through two of its own adjacent atoms, making the metal atom’s relevant electrons floofier.

single thread go brrr

It happens in industry, too, but often it’s even the stakeholders’ fault :) I’ve still got so many reports to write…

Papers!

(jk my company mandates it after unilaterally deciding to stop paying for endnote and forbids other software im miserable send help)

In grocery stores in many parts of the US at least, it is extremely hard not to find bread in plastic bags. Even the one of 3 near me that has its own bakery puts the bread in a plastic bag, and then in another bag that is paper with a plastic “window”, and the paper part has a PE wax lining for god knows what reason.

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Protan here, similar result.

something to do with liquid nitrogen? /s

A French-American guy (grew up in US) in my school described an encounter at a zoo when he was a young. Apparently, he ran up to the exhibit and shouted, “look! it’s a daddy fuck and a mommy fuck with a baby fuck!”, much to the chagrin of his parents.

ich, verwirrt: machen 6 kreuze aber nicht fis?

an den fingern abzählen…

oh. fis-dur und auch dis-moll.

bravo/a

How bout sticking my hand in a bowl of water a couple times to break a few H-bonds? Or smashing ice if you’re gonna be choosy about liquids?

Hot take: calories are the more intuitive energy unit. “How much energy it takes to heat 1 mL aka 1 g water 1°C” is more relatable than “how much energy it takes to move a 1 kg mass 1 m while accelerating that mass at 1 m/s/s”.

kcal = Cal is silly though

Side note: I know that the heating water thing is problematic because it depends on T, P, and purity (yay thermo), which is why these days cal is defines in terms of J. That does not change my opinion.

But… but… muh thulium…

jk all lanthanides are the same don’t @ me physicists

also Ce(IV) catalyst stans

also also total synthesis tryhards who think SmI2 is ever the right call

Phosphorus, sulfur, …?

Most chem PhDs don’t even know the whole thing lol. We had to memorize just the symbols in high school, but positions weren’t required. In my grad-level inorg course, the first test was a blank table that we had to fill in, but even then the f-block and transactinides were not required.

Mitochondrion

I mean… just rotate it 90 degrees ((()))