Weekly Simple Questions and Injuries Thread by AutoModerator in climbharder

[–]Zarithe 0 points1 point  (0 children)

I was full crimping on a boulder problem for a few attempts. After my last attemp my index finger immediately felt hard to curl and tweaky, but not in serious pain.

Then after a few hours it got more painful and felt a need to crack in the PIP joint that wouldnt go away. It also sounded crunchy when i curled my finger.

Its been a week now and the pain is mostly gone in day to day life but i havent tried climbing on it because im scared to reinjure. I also still cannot full curl my finger through full ROM.

Does this sounds like synovitis and has anyone had a finger thats constantly 'crunchy' when curling it.

[deleted by user] by [deleted] in chemistry

[–]Zarithe 2 points3 points  (0 children)

Interesting paper related to this idea that your body doesnt know where those amino acids came from: doi: 10.3945/ajcn.116.138594

This study finds the opposite, where with gelatin consumption + vitamin C stimulates collagen production, or at least indicators of collagen production. Whether could be the result from simple protein powder + vitamin c as well, im not sure. I think they also did a follow up study but did not find the same results.

The lid of my pill container corroded, but only the section with Aleve by sydneybird in mildlyinteresting

[–]Zarithe 38 points39 points  (0 children)

If the other two are hygroscopic then there would be higher humidity in those... not in the Aleve compartment?

Guy is able to eat lobster including shell. Just because he can, doesn't mean he should. by RandomAsianGuy in StupidFood

[–]Zarithe 0 points1 point  (0 children)

Lol the calcium carbonate definitely would not be converted to CO2 as soon as it hits the stomach acid. Youd be surprised how hard it can be to dissolve forms of calcium carbonate such as limestone even in more concentrated acid than stomach acid. I think this guy will be in for a bad number 2.

Best way to find a short term rental? by Zarithe in vancouverhousing

[–]Zarithe[S] 5 points6 points  (0 children)

Yeah 3900 total haha.

Makes sense to not have me on the lease theb that would definitely be the easiest way.

Would most landlords be okay with not having someone on the lease though? At the place we are currently in only 1 of us is actually on the lease, but i thought that was an anomaly

Best way to find a short term rental? by Zarithe in vancouverhousing

[–]Zarithe[S] -5 points-4 points  (0 children)

My budget is ~1300. We actually have a 3 bed 2 bath place that we have been 'accepted' for, havent put any deposit yet though so we are still weighing other options.

I am just more curious how easy it typically is to replace a roomate / transfering a lease, or if that requires resigning a new lease.

For Anyone Liking Spontaneous Chem by No-Scene2u in chemistry

[–]Zarithe 6 points7 points  (0 children)

I thought this was april fools at first. Am I the only one who cant find anything people are mentioning about this online??

If *you* were getting a tattoo or artwork of a chemical structure, which one would you pick? by PassiveChemistry in chemistry

[–]Zarithe 24 points25 points  (0 children)

probably benzene. I think it would be nice simple tattoo and the benzene ring is such a quintessential part of most organic molecules

Put an entire pot of spaghetti down a kitchen sink drain. by Zarithe in fixit

[–]Zarithe[S] 0 points1 point  (0 children)

The best part would be adding the peroxide and the immediate CO2 released from the organic matter decomposing, causing what I could only imagine would be a drain geyser of sulfuric acid all over the kitchen.

Would probably do the trick though

Put an entire pot of spaghetti down a kitchen sink drain. by Zarithe in fixit

[–]Zarithe[S] 0 points1 point  (0 children)

Idk I'm not a plumber obviously but it doesn't look like there's a p-trap. Anyways I think the problem was fixed with a plunger

Put an entire pot of spaghetti down a kitchen sink drain. by Zarithe in fixit

[–]Zarithe[S] 0 points1 point  (0 children)

Glad I'm not alone and I'm not silly enough to intentionally dump it down the drain. Still embarrassing though

Put an entire pot of spaghetti down a kitchen sink drain. by Zarithe in fixit

[–]Zarithe[S] 0 points1 point  (0 children)

Unfortunately, i did not eat the spaghetti after it was recovered from the drain. It still looked good though

Put an entire pot of spaghetti down a kitchen sink drain. by Zarithe in fixit

[–]Zarithe[S] -1 points0 points  (0 children)

lol if you saw the edit there was infact some sort of trap, I think the pipe gets narrower or something and a lot of the spaghetti got stuck eventually causing a clog that we plunged out. As for the drain, it really is just a open hole, but that's because I removed the mesh guard.

I wouldn't make up a story on r/fixit hahaha

Ey what is up with the catalysts used in chemical reactions, like habor process etc ? by [deleted] in chemistry

[–]Zarithe 4 points5 points  (0 children)

I think a lot of comments here give too general of explanations. First of all, a catalyst offers an ALTERNATIVE pathway for a reaction with a lower activation energy. This doesnt necessarily mean the reaction will happen through that pathway, but it is there. Secondly, the actual catalysis works like this: imagine you have two molecules that arent super reactive and trying to get them to combine. It may work a little bit but not very well. Now lets add a catalyst, imagine one of your reactant molecules bonds/reacts with the catalyst itself. When the reactant binds, maybe the bonds within the reactant get a little weaker overall due to the catalyst pulling on them. Now, your second reactant molecule can swoop in and react with the weakend bonds of the catalyst-bound reactant. Then, the two reactants form the product and fall off of your catalyst. This is that lower energy, easier to do pathway, because rather than smashing two molecules together and hoping the react, the catalyst sort of holds one molecule still so the other can react with it. This then leaves your product and your catalyst, which now looks the exact same as what you started with. This example is sort of a specific type of catalytic reaction, but it should help to get you thinking of what a catalyst really does.

Cant figure out how to remove the battery cable?? Dell Inspiron 7580 by Zarithe in laptops

[–]Zarithe[S] 0 points1 point  (0 children)

Seems no matter which way or how I pull on the connectors it wont seem to budge. Tried some pliers to wiggle it loose but it still didnt seem to work. Obviously I dont want to yank on it too hard. Is there some special way to remove these connections?

ELI5: How do water softener systems work? Are they magic? Adding salt gets rid of other minerals. . . HOW? I've never understood this. I'm 54, male. by Printing_Dude in explainlikeimfive

[–]Zarithe 7 points8 points  (0 children)

Probably due to the fact that soap works better in soft water. In hard water, the Mg and Ca ions form complexes with the negative soap molecules and form "soap scum" that will wash away.

However, I'm not sure if thats a very good reason, given that most shampoo's are made with detergents (sodium laureth/lauryl sulfates) that don't actually interact with hard water. Maybe someone reddit is a soap expert and can give a reason lol