mander.xyz

xkforce, (edited ) to science_memes in Biochem

Then you find out that the lack of an ingredient results in the microbes producing the product lol.

Certain algae for example, need to be “starved” in a way that results in them switching from conventional photosynthesis that produces glucose to photosynthesis that functions to generate Hydrogen and Oxygen alone. The Oxygen is used for respiration and the Hydrogen is essentially dumped as a waste product. They can only sustain this for relatively short periods before their stockpile of carbohydrates is sufficiently depleted. Which means these bioreactors need to be cycled through a fattening phase where the algae stockpile fuel and a starvation phase where they exhaust that stockpile while producing Hydrogen.

embed_me,
@embed_me@programming.dev avatar

Stop algae cruelty

fossilesque,
@fossilesque@mander.xyz avatar

Phycologists on revolt.

DragonTypeWyvern,

Fuck them eukaryotes

xkforce,

Well the alternative is us setting the solid, liquid and gas remains of their ancient ancestors on fire which slowly makes the planet uninhabitable.

SubArcticTundra,
@SubArcticTundra@lemmy.ml avatar

Wow, could you point me to any resources where I could learn more? I’m doing undergrad biochem…

xkforce, (edited )

Nitrogen starvation increases Hydrogen yield: pubmed.ncbi.nlm.nih.gov/402109/

Sulfur starvation doing the same as well as a strain that doesnt need to be starved: www.sciencedirect.com/…/S0360319920341550

SubArcticTundra,
@SubArcticTundra@lemmy.ml avatar

How did you come across these?

xkforce,

Ive been trying to keep tabs on the literature in biochemistry, chemistry and other fields for decades. I inevitably come accross things like this from time to time. These particular articles I just googled because I dont have the bookmark for the original paper discussing Hydrogen production back in 2000.

girl, to science_memes in Biochem

me when i fail the assay i almost singlehandedly designed

it me

today

nxdefiant,

F

bdonvr, to science_memes in If I was smarter, I'd have gotten the bag.

And a lot of debt, usually. Don’t forget that one.

PatFussy,

If you have to pay to get a PhD then you were fleeced and probably deserve to lose that money

bdonvr, (edited )

According to the NCES, in 2015-16 the average PhD graduate had about $100k student debt

nces.ed.gov/programs/coe/pdf/coe_tub.pdf

RootBeerGuy,
@RootBeerGuy@discuss.tchncs.de avatar

Maybe you should look outside of the US.

bdonvr,

Ya got me there.

baseless_discourse, (edited )

I think most of these are from undergrad and master. AFAIK most PhD are fully funded. Not enough to pay any debt, but usually enough to not starve.

emergencyfood,

pls no bully yanks

yanks are fren not food

nifty, (edited )
@nifty@lemmy.world avatar

I don’t know, there are lots of PhD programs in the U.S. where you’re a research assistant, which basically means your tuition is free and you’re paid a stipend for the research. In my experience, I’ve only met US PhD students who were fully funded.

emergencyfood,

From what I’ve heard, PhD positions in the US are funded in STEM fields, but not in the arts and social sciences. But I could be wrong.

nifty,
@nifty@lemmy.world avatar

Apologies for the Reddit link, but this explains a lot of what I would have said: reddit.com/…/why_is_there_a_commonly_repeated_ide…

emergencyfood,

Ah, that’s interesting. So I guess the idea that arts PhDs don’t get funding in the US is (mostly) a myth?

nifty,
@nifty@lemmy.world avatar

I think people think that having to TA means they’re not being funded or something like that. If you’re getting into a program that doesn’t fully fund you, then that program doesn’t want you or it’s not a good research program. All reputable PhD programs fully fund across disciplines.

NightAuthor,

Yeah, I got paid to do gradschool. Not much cuz I didn’t shop around and just stayed where I did undergrad, but yeah, once you’re doing research, they should be paying you.

PatFussy, to science_memes in Biochem

This meme didn’t show the revolving lab door, the giant corporate foot over the biochems head and the minimum wage employee who makes more money than them.

voight, to science_memes in If I was smarter, I'd have gotten the bag.
@voight@hexbear.net avatar

Oh wait shjt j meant to reply to the meme abour pi digits that doesn’t make any sense

chicken, to science_memes in If I was smarter, I'd have gotten the bag.

I do not regret not going to grad school

Mango, to science_memes in Magic π

At work we have a scale sensitive to the 1/10,000 of a gram. 4 decimal digits. It’s so sensitive it needs to be encased in a box so tiny connection currents don’t make it go frantic! Even in the box the number changes a lot. 15 0s is nutty.

threelonmusketeers,

connection currents

Convection currents?

Mango,

Yes. Heckin Gboard.

Donjuanme,

Mine can tell if I’m sitting next to it’s desk or not. I’ve come to the conclusion it’s the deformation of the ground the desk is sitting on.

It’s really a silly amount of precision for what I use it for. But It’s so fun to lock g on .0000, even if only for a few seconds. Anyone who has a target of a specific amount of 0s can do it themselves. After the first 2 shits pretty random.

datelmd5sum,

And a hit of acid would show something between 0.0000 and 0.0002 on the scale.

Mango,

Not when I’m the detector!

Kolanaki, to science_memes in anti meme
@Kolanaki@yiffit.net avatar

Pfft… Carmen Sandiego could do it.

Gork, to science_memes in Magic π

Diameter of a hydrogen atom is all well and good, but how many digits of pi will we need to be accurate to a Planck Length?

nova_ad_vitum,

Honestly probably not that many more. My guess since I’m too lazy to do the math is less than 100.

Malgas,

The width of a hydrogen atom is 3.1*10^24 Planck lengths. So, yeah, 65 digits of pi ought to do it.

EvilHankVenture,

The diameter of a hydrogen atom is over 10,000,000,000,000,000,000,000,000 plank lengths.

So based on this post I have no idea.

xthexder, (edited )
@xthexder@l.sw0.com avatar

Well that’s only 26 more digits, so we’re probably good at 100 digits of pi. [citation needed]

netwren, to science_memes in Magic π

Dope. I just memorized it to 50 digits. Good to know for my intents and purposes it doesn’t matter at all anyway.

EvilHankVenture,

Hey, cheer up, it doesn’t matter for anyone’s intents and purposes.

hansl,

No no no. The error compounds every time you math so if you math a lot at 40 digits you might end up with like 30 digits of correct precision. Totally unacceptable. Literally unplayable.

zloubida, to science_memes in If I was smarter, I'd have gotten the bag.
@zloubida@lemmy.world avatar

The worst? I stopped to do research after my PhD and now, I forgot everything. Dumb as a rock AND without any useful knowledge of my very peculiar subject.

But I still have the paper, yay!

Omega_Haxors, (edited ) to science_memes in Magic π

Memory Masters destroying the last of their childhood memories so they can add another 80,000 digits of pi to their mind palace.

contextMemory Mastery is a technique where you force your brain to remember random information by formatting it in a certain way, some people have gone on to use this trick to memorize millions of digits of pi. A study recently came out confirming that every time you make a new memory it destroys an old one, so every time someone makes a “memory palace” it comes at the cost of older memories, such as in childhood.

hanke,

You wouldn’t happen to have that study close at hand?

I often nerd into new hobbies and learn new stuff. I also don’t feel like I remember as much of my early childhood as people around me does.

I have no idéa if this is what’s happening to me, but it’d be interesting to read about.

Omega_Haxors, (edited )

Sorry couldn’t find it and google is being as fucking useless as always 😔

EDIT: Found it, it was a youtube video youtu.be/diyoTo3Co08

exocrinous,

A study recently came out confirming that every time you make a new memory it destroys an old one

If that was true, babies would forget their first memory every time they remember their second memory. There’s no way it’s true. It might be partly true, but it can’t be completely true.

Omega_Haxors, (edited )

Well the way memory works is that it allocates certain clusters of neurons to storing information. When you’re young there’s a lot of blank space that you can store stuff in but as you get older you start having to pick and choose as more and more brain space gets taken up.

Here’s a cool video on the subject: www.youtube.com/watch?v=X5trRLX7PQY Fun fact: because of how memories are formed in chains you can tell if you’re on the precipice of forgetting something if you try to recall it and you start trailing into another memory. You can experience this for yourself by trying to recall the beat of an old song and note when it starts morphing into the beat of a newer song. It’s also worth noting that every time you recall a memory you destroy the original and rewrite it, bringing it back to the top. That little asshole is like 90% of the reason why our memories suck so much shit and are so prone to outside manipulation.

supercriticalcheese, to science_memes in Biochem

Hmm object to the average chemical engineering work. We are mostly fancy plumbers, so we end up just sizing pipes and piping systems a lot .

SanndyTheManndy, to science_memes in Magic π

I memorized it to a hundred digits for a bet so I’m set for life.

GenEcon, (edited ) to science_memes in Magic π

Still, we can’t proof that Pi^Pi^Pi^Pi is an integer or not, since we don’t know enough digits.

SparrowRanjitScaur,

It’s definitely not an integer seeing as it has a fractional component. Do you mean if it’s rational or not?

GenEcon, (edited )

No, we can’t proof if its an integer or not. If you can proof it, you are up for a great career in mathematics: www.spektrum.de/kolumne/…/2203268

(Unfortunately only found this german article, but maybe translation works)

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