The Periodic Table

orthocresol

00:08

in Spring Cleaning, Mar 31 at 21:06, by orthocresol

if you look at the questions that are tagged with absorption, and the usage guidance, you'll see that it is horribly misused

in Spring Cleaning, Mar 31 at 21:07, by orthocresol

it wasn't designed to apply to questions about absorption of photons...

pentavalentcarbon

I do remember that and I think Brian made a project card for it, but I forgot about it until that NMR question.

So what should be done?

orthocresol

You could do something about it if you feel up to it...

otherwise it can be pushed to the list of things to be done soon

hmm..

pentavalentcarbon

Ok, I will. It also isn't as many mistags as I thought.

orthocresol

I'm not actually 100% sure on what to do with it.

i guess mostly retagging

with spectroscopy, or nmr, or spectrophotometry ...

pentavalentcarbon

Exactly what I was about to say

If my tag wiki edit hasn't been approved yet, can you reject it?

orthocresol

00:13

done

it has been brutally shot down

pentavalentcarbon

dies

orthocresol

haha

oh gosh... another bomb..

pentavalentcarbon

yeah...

orthocresol

sometimes i really hate reading the news

pentavalentcarbon

I read news from home on Twitter, but invariably some world news creeps in. I think it's a good balance between willful ignorance and gluing oneself to the internet

orthocresol

00:28

ah... I follow BBC on twitter, so that's most of my news

it's mostly bickering about politics now with this stupid election

either that, or something about trump, or well now they're gonna cover this incident...

it's a little disheartening sometimes

pentavalentcarbon

yeah, that creeps in too...only following local news rather than international helps, but the tech talking heads have really gotten more involved over the past year or so, plus friends, etc.

Sometimes I just...don't read it. We have enough battles to fight

orthocresol

I already ignore news from my home country. it's messed up too

the thing that gets me is, for every nasty incident that the UK has, there are probably tons more unreported in places like syria, etc.

pentavalentcarbon

Oh yes. People here are finally realizing that too. "Oh, Trump is gonna ruin everything, how's the rest of the world doing...oh..."

orthocresol

:(

pentavalentcarbon

The popular media is still pretty bad, enough so that people with ahem different viewpoints can still choose to selectively ignore it.

But I remember the attacks in Paris on the satire newspaper being a turning point, at least in the media I follow.

In a sort of silver lining-ish way, I feel that the current political divide in the US has made people realize we need to do a better job with this selective media and communication problem.

Other countries (UK), there is no silver lining.

3

Q: Look for superabsorbent balls whose expansion is reversible

I am glad to find very cheap superabsorbent balls (see image below). However, I found their expansion is not reversible. The wiki entry 'Superabsorbent polymer' also says that the material will 'retain' extremely large amounts of a liquid relative to their own mass. Is there any other superab...

absorption

physics! also when you squish them they make a terrible mess

Should I detag old bad questions?

orthocresol

01:06

hmm...

(sorry, was away)

pentavalentcarbon

it's ok, I might stop soon anyway to avoid flooding

orthocresol

i guess so, but if there are other stuff that can be edited, polish it up as well?

pentavalentcarbon

Yeah, I'm trying to, but some are just...downvote magnets

orthocresol

haha yeah.. i know what you mean

maybe it's time to revive the two people agree on nuking = nuke

maybe not now because i'm half asleep, but it was what we were doing last time anyway..

pentavalentcarbon

I vote that there are maybe a dozen left, and leave them until tomorrow or later

buuuuuuuut...you should really nuke this one: chemistry.stackexchange.com/questions/68055/beers-law-help

orthocresol

01:14

poor guy

in Discussion on question by Jake: Beer's law help?, Feb 9 at 18:43, by Jake

so what do i do?

in Discussion on question by Jake: Beer's law help?, Feb 9 at 18:43, by Jake

it is in millimeter

duly nuked

pentavalentcarbon

Office hours! Office hours! This is what they're for!

BAYMAX

04:05

Hi
actually what is the temperature of the ocean land interface ? any idea or references?

Pritt Balagopal

Hello! I have created a new tag! Called states-of-matter. I edited the title, and gave a brief body for the tag wiki.

Oops typed it twice by mistake. I guess my internet is bad now.

Martin - マーチン

04:21

@PrittBalagopal this is already covered by the phase tag

Pritt Balagopal

05:33

@Martin Nice, but my tag has a better description lol, so I'm keepin' it. :)

Martin - マーチン

That's really not your decision. I personally find it has a too limited scope. You hardly ever deal with solid (etc.) alone, and that is covered with the phase tag, you'll probably more often dealing with many phases. Adding your tag to new questions is a tedious task and it has limited benefit. Don't be surprised when we decide to merge it with the existing tag.

Fl.pf.

07:53

-4

Q: I wonder what the reason may be, that it has never been investigated how temperature is a chemical concept. Is there hereof some kind of censorship?

Problem definition: Physical movements may principally be initiated or stopped solely by interaction with the latent chemical chambers of nature (e.g. within the human arm). Even billiard balls may transmit the impulse solely by (virtual) vibrations within these chemical chambers. But these vibra...

acid-base thermodynamics redox

this is amazing

Berry Holmes

Hello, community bumped a post to the homepage, it contains a homework tag (the post is an year old) should I remove the tag?

Martin - マーチン

@BerryHolmes Community bumps with reason, usually because there is an answer without votes. Sure, you can go ahead and remove the tag, but if you do, review the whole thread. Maybe there are some other problems, vote on it, edit it for clarity, or improve the answer, you can also flag obsolete comments.

Berry Holmes

@Martin Alright, I'll review the entire thread, I've edited the answer as well to make it more readable.

Martin - マーチン

@Fl.pf. It will be deleted. But I think there is a twitter feed, gems of stackexchange, iirc, you might want to send a screenshot there... you can use the printed version: stackprinter.com/…

@BerryHolmes Thanks. The homework tag is deprecated, you can always delete it, if the question is already on the front page, no harm done.

Berry Holmes

08:11

@Martin done. :)

Martin - マーチン

I will die before that spd-hybridisation crap leaves the textbooks.

6

Berry Holmes

@Martin-マーチン Lol I think I'm younger than you but I feel the same, nevertheless, it's quite fun; drawing the structures and all; I like it.

Fl.pf.

@Martin-マーチン maybe we should teach about autochthonous-systematics instead?

Martin - マーチン

define:autochthonous-systematics

Fl.pf.

uhm

ask @Zeus

Martin - マーチン

08:18

nope... wikipedia doesn't know ;)

zeus

Noun: zeus m (genitive zeī); second declension

John Dory (or a similar fish)

i did not expect that

Zeus

== Translingual == === Proper noun === Zeus m A taxonomic genus within the family Zeidae – the John Dory and the Cape dory. A taxonomic genus within the family Rhytismataceae – a fungus discovered on Mount Olympus, with yellow disc-shaped fruiting bodies that grow in the decaying wood of Bosnian pine trees. ==== Hypernyms ==== (genus of fungi): Eukaryota - superkingdom; Fungi - kingdom; Dikarya - subkingdom; Ascomycota - phylum; Pezizomycotina - subphylum; Leotiomycetes - class; Rhytismatales - order; Rhytismataceae - family === References === Zeus (fish) on Wikipedia.Wikipedia Zeu...

Fl.pf.

haha

autchtonous: native-to-soil

so maybe systematics of your garden?

where time is faster because it's hotter

Martin - マーチン

that makes so much sense... that's probably why summer is always shorter than winter

Fl.pf.

yeah, now you opened your shutters

Martin - マーチン

08:34

I finally can see! I can start to believe again. All hail Zeus!

In all fairness though: This is an excellently crafted troll post.

Fl.pf.

Well it's answerable thou. But one-word answers are frowned upon :D

Pritt Balagopal

09:28

Hello!

Pritt Balagopal

14:45

1

Q: Equilibriums and Overshooting

If we have some reaction $\ce{A(aq) + B(aq) -> AB(aq)}$ and right now we have less $\ce{A}$ and $\ce{B}$ then we would have at equilibrium, is there ever a time where the amount of $\ce{A}$ and $\ce{B}$ would overshoot the equilibrium of $\ce{A}$ and $\ce{B}$ if the reaction proceeded without an...

equilibrium kinetics concentration

I posted an answer, but recieved no votes? Was my answer that terrible?

hBy2Py

15:24

@PrittBalagopal With the uptick in the number of questions posted lately, many questions and answers are getting a much lower number of views than previously. It's likely just that not very many people have clicked through to the question, and thus have not even seen your answer.

@Martin-マーチン Weinhold/NBO talk a lot about sd hybridization for transition metals -- I guess that's leaked over into the main group elements?

Martin - マーチン

@hBy2Py I doubt it. That whole crap started with VESPR and the whole octett expansion garbage. It's probably been taught since the early stages of quantum chemistry and it'll take at least that long to eradicate it from the textbooks, especially when the most populated nation still teaches that stuff to students. It's really hard to unlearn that crap.

hBy2Py

@Martin-マーチン Chemistry could definitely use an overhaul of its introductory conceptual paradigms.

There's an article by Autschbach, I think, pretty sure in J Chem Ed, trying to clear up misconceptions about orbitals.

!!doi/10.1021/ed200673w

doi:10.1021/ed200673w

Martin - マーチン

I remember that one of the standard works I had in the first semester in Germany still had it in there. A really good book actually, but it was only at the end of my diploma when the new edition came out when it was finally gone. But that doesn't mean it's actually gone. I kept using this book until I left Germany.

hBy2Py

Chemistry didn't really have the computing power to understand the orbital structure of, e.g., oxoanions until the last decade and a half, though, right?

Martin - マーチン

There are so many articles out there trying to clear this up... it's just that they have to be used... You need at least another generation trained to a higher degree in this and then they need to become teachers and professors... there is so much left to do...

I think the real progress computationally started with gaussian 98 and the similar in that time...

hBy2Py

15:39

@Martin-マーチン It doesn't help that quantum is so weird/non-intuitive.

Mm, two decades then. Yeah, both the software and hardware have really matured in that time.

Martin - マーチン

my internet is wonky... i think my router broke... need to go. See y'all soon.

hBy2Py

Later

Bounty Hunter

18:34

5

Q: Synthesis-Golf I: Synthesis of sodium Fluvastatin

The idea: I've noticed quite a few sites on StackExchange have adopted occasional challenges (in the style of the Programming Puzzles and Code Golf site on StackExchange) as a way of getting more people in the community engaged. Chemistry.SE often has the same problems as the other sites who'...

organic-chemistry synthesis

orthocresol

20:16

@BountyHunter I tried.

T_T

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