ornery_chemist @ ornery_chemist @mander.xyz

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2 yr. ago

Fire is definitely possible without oxygen. Like in a chlorine atmosphere, for example.

My condolences, buddy.

You may be interested to know that these kinds of paper adhesives are usually intentionally designed so that the substrate (paper) tears before the adhesive does. This is meant to ensure robust packing and to give proof that the package has not been tampered with. Couple this with ever thinner and shittier substrates, and, well...

Ah, so I'll never be found out, then.

I think water is rather rare as a coolant these days. Organics (chemical sense not farming sense) like propylene glycol or some kind of glyme aren't potentially corrosive to metals if spilled, are harder to grow shit in, have lower volatility, and have a higher thermal limit. Maybe also with a little bit of antifouling agent thrown in. My main gripe with them is that if you do spill them, they don't evaporate and you're slipping over the floor for the next few days because you missed a spot.

But yeah, air cooling ftw

Just bought one of those brown monsters for a new build, can't wait to try it

PI at next subgroup meeting: "It's been a whole month, why hasn't anyone accomplished anything?"

LM1: "Well the experiment plan you said I had to do I should try last time f-"

LM2: "-Spectrometer died :)"

LM1: "...oh right, yeah, the spectrometer died :|"

PI: :|

PI: "So where's your manuscript?"

thanks, I needed a win

aɪ noː jɚ ˈbiːɪŋ fəˈsiːʃəs, bʌt ˈɪŋglɪʃ ˈvɑʊəlz ɛsˈpɛʃəli kən biː ə ˈɹiːəl ˈklʌstɚfʌk. ɪf ə wɚd ɪz tə biː ˌjunɪˈvɚsəli ˈɹɛkəgnaɪzd baɪ ɪts ˈspɛlɪŋ, ðɛn ðə ˈspɛlɪŋ wɪl nɑt ˈfeɪθfəli ˌɹɛpɹɪˈzɛnt mɛni ˈpiplz pɹəˌnʌnsiˈeɪʃənz... so nɑʊ ju hæv ðə seɪm ˈpɹɑbləm æz bəˈfoɹ ɛkˈsɛpt wɪθ ˈhɑrdɚ-tə-taɪp ˈlɛtɚz.

ʃwɑ ɪn pɑɹˈtɪkulɚ ɪz ə hoːl ˈʃɪtʃoː ɑn ɪts oːn

ɑn ðæt noːt, gɛs weɹ aɪ gɹuː ʌp :)

For legal reasosns, the following is a dramatization of events.

I feel this in my goddamn BONES because the thing vents at 135 FREAKING DECIBELS and I'm TRAPPED 2 METERS from it trying to measure out 0.0000023 mg of a temperature-sensitive metal complex in the glove box that I spent the last 2 weeks trying to make and POUND SAND EHS WITH YOUR PENCIL-PUSHING SCOPE-CREPT DEPARTMENT POLICIES I WILL WEAR HEARING PROTECTION WHERE I DAMN WELL PLEASE! WHAT'S THAT? I WON'T HEAR IF SOMETHING "GOES WRONG"? IS THAT SO? GEE, I HADN'T CONSIDERED THAT! LET ME CHECK IF REGULAR EXPOSURE TO THE LABORED MUSINGS OF SATAN'S FROSTY ANUS COULD POSSIBLY AFFECT MY ABILITY TO HEAR THINGS "GOING WRONG"!

While I'm at it, A CERTAIN LIQUID AIR COMPANY OUGHT TO FEEL ASHAMED FOR NOT DITCHING THEIR JANKY OLD DEFECTIVE DEWARS, DON'T YOU DARE TRY TO BLAME IT ON ME LEAVING THE PRESSURE BUILDER ON, FIRST THING I CHECK

¯(ツ)_/¯ I was just trying to highlight a fun fact about how they act similarly metabolically.

But since you asked, according to wikipedia, the oral LD50s for acetone and isopropanol (taking average of values for rats, mice, and rabbits) are 4713 and 3655 mg/kg, respectively. Extrapolating to a 75 kg human, that's 451 and 349 mL for a 50/50 shot at permanent night-night. For comparison, ethanol is ~7300 mg/kg -> 694 mL by the same metric.

Who needs metabolism when you can just explode?

I don't think your comment emphasizes enough how like drinking rubbing alcohol drinking acetone would be. Rubbing alcohol (isopropanol) is, in fact, metabolized directly to acetone when ingested. The acetone can be metabolized further, but a good chunk is also simply exhaled.

I wish whatever jackaſs that decided that the long ſ needed a ſtupid nub at exactly the ſame poſition as the croſsbar of the letter f in Roman typefaces a very unpleaſant afterlife. As if OCRing hiſtorical documents didn't have enough problems already.

♪ How 'bout I do ANYWAY ♪

Khshenshchizhevoshitseh poviat wenkowovih

Yeah, transliterating to an English spelling doesn't help much.

I think rz is linguistically equivalent to a soft r, so in this case rze would be "ре", not "ж". In some areas, rz is pronounced closer to the Czech ř. IIRC, ж transliterates to ż (not to be confused with ź, which is a soft z). The Polish Roman alphabet is very regular and well adapted to the language, representing palatalization and other non-Latin sounds as digraphs in a similar way to Italian or English.

The cyrillicization of Polish was historically done to a limited extent, but carried with it some, shall we say, sociopolitical baggage. There are also some peculiarities to Polish that either don't exist or have ambiguous transliterations into Cyrillic, such as the Polish nasals ą and ę or ó (historically a long o, but currenly pronouned /u/).

Lol OW was the first thing I thought of.

Me: hey look a protan filter

OW: okay, red is now pink, and everything else is washed out :)

Me: okay tritan it is

OW: lol have fun on your acid trip

Neat, thanks for the clarification. Even though the initial proportion is 50/50 for X-activation, are there scenarios where one daughter line is more prominent than the other, or does it usually remain 50/50?

This is not true. That women cannot have the congenital dichromacy (or anomalous trichromacy) that biological males commonly have is flat out wrong. A biological female can still be a protan or deutan, but the phenotype requires that both X chromosomes carry the recessive color vision-deficient alleles. Nevertheless, given that ~8% of all X chromosomes have such a gene regardless of sex, the incidence in the female population is still around half a percent, which is not insignificant.

Interestingly, one form of tetrachromacy in females actually has the same cause as color vision deficiency in some males (specifically anomalous trichromacy). From what I understand, only one X chromosome is active per cone cell, and which one is active is random. So, half of such a person's cone cells of one type are "normal" while the rest of that type are anomalous and have a slightly different peak wavelength. The net result is four different types of cone cells, i.e., tetrachromacy, which may have an incidence of more than 10% in females.