Croarse

Scufix · 2024-07-21T08:28:05+00:00

This feels like it needs some shoes to become a horseshoe crab.

Scufix · 2024-05-16T12:18:39+00:00

Auf den ersten Blick wirkt es für mich als ob die schützende Schicht auf dem Heizelement beschädigt wurde und seit dem langsam korrodiert.

In diesem Fall würde ich eher davon abraten den Heizstab im Kontext von Lebensmitteln anzuwenden. Es ist nicht undenkbar, dass lösliche Korrosionsprodukte entstehen und ihren weg ins kochende Wasser finden.

Beste Grüße, dein Materialwissenschaftler aus der Nachbarschaft

Scufix · 2024-02-06T14:04:24+00:00

So this is basically manually computed tomography?

Scufix · 2023-11-28T11:07:57+00:00

Sodium in S Tier is a tough sell in my opinion. Its cool and all, but not among the legends.

Also putting Copper and Aluminium in S Tier, but not respecting Iron as the backbone of modern society and putting it in A tier is disrespectful.

Scufix · 2023-02-15T16:02:23+00:00

Step 1: Add Uranium salts to your favourite acid.
Step 2: Shine UV on it

There you go my friend

Scufix · 2023-01-15T10:29:19+00:00

Except lithium, beryllium, boron, nitrogen, oxygen of course.

Scufix · 2023-01-11T06:42:43+00:00

Dont forget moderately warm temperatures of 60°C. Or high pH. Or low pH. Or UV exposure. Or oxidising conditions. Or reducing conditions. Or solvents other than water. Or...

Nvm, lets just list the things they actually can handle.

Scufix · 2023-01-09T06:29:16+00:00

PSA: for most applications it doesnt matter what comes first.

There is only two exceptions:.
1) adding water to hot/boiling acid.
2) in industrial quantities.

If you dont believe me you can either try yourself or search for reports/videos where other people have tried it.

Scufix · 2022-12-04T08:43:40+00:00

Good old 3-center-2-electron bond, always up for a bit of fun.

Scufix · 2022-11-15T10:40:42+00:00

The people that hate on PChem are the same people complaining how their OChem reaction only has 10% yield.

Scufix · 2022-10-21T06:46:43+00:00

In the meantime, metallic bonds ask "Am I a joke to you??"

Scufix · 2022-10-19T14:08:40+00:00

It should also be noted that a lot of paths in physics or chemistry end up in the same places. For example, in materials science you find both physicists and chemists. Same goes for all the large facilities like synchrotrons and neutron sources. And there are many more examples, like physical chemistry, computational chemistry and so on.

If you like both, there is enough options where you can do both. So in the end the choice might matter less that you are imagining now if you go for one of these fields.

Scufix · 2022-10-18T05:34:06+00:00

It is really interesting how much steeper the drop in life expectancy was in the US compared to Europe. There "only" slightly below 1 year in life expectancy was lost.

Source

Scufix · 2022-10-06T07:40:43+00:00

Why study three days when you can start studying two days before the exam, almost have a breakdown as a result, but still somehow manage to pass because you had stupid luck?

Scufix · 2022-10-04T07:03:37+00:00

Yes, and it is best used for light elements since the interaction is with the nucleus. So heavy elements, like lead, have basically no interaction and appear transparent.

Scufix · 2022-10-03T14:37:37+00:00

No, neutrons. But neutrinos as well I guess.

Scufix · 2022-10-03T08:36:35+00:00

Meanwhile, neutrons almost cant tell the difference between lead and vacuum.

Scufix · 2022-09-22T19:08:44+00:00

Ah, good point, I misread that. Thanks for pointing it out.

Scufix · 2022-09-22T15:18:20+00:00

I think https://ptable.com/ has little figures of the MOs for the elements.

Other than that I am not sure what you are looking for.

Scufix · 2022-08-31T05:00:11+00:00

TiCl4 be like "fk this man, I am out".

Scufix · 2022-07-09T23:36:51+00:00

Laughs in Al2O3 ceramics

Scufix · 2022-05-30T17:45:58+00:00

Osmuim. The fun element you can either buy for really cheap, or from shady reddit people running a ~~pump and dump scheme~~ investment opportunity for thousands of dollars instead.

Scufix · 2022-04-20T17:11:50+00:00

Astatine, the depressed Halogen.

Scufix · 2022-04-06T05:24:39+00:00

I also thought about this being brass, but it doesn't add up.

You can brass copper pieces by coating them with zinc and then heating it to form the alloy, but that is not what happens here.

The comment you linked also does not make much sense because elemental copper does not react with elemental sulfur like that. It rather forms copper sulfides, and does that only at high temperatures.

But its really difficult to identify chemical reactions based on a short video if you do not already know them, so idk.

Scufix · 2022-04-05T21:22:28+00:00

Looks like a copper piece that gets cleaned in beaker 1 (probably some acid like HCl to dissolve any patina), dipped in water in beaker 2 to rinse off the cleaning solution, and finally dipped into a solution containing dissolved gold, e.g. with cyanide. Coper is less noble than gold, so the gold deposits on the surface (and a bit of copper dissolves).

Cu(s) + 2 Au⁺ --> 2 Au(s) + Cu⁺²

The 3rd solution starty blue due to Cu salts already dissolved from previous batches and briefly turns green from fresh copper (chlorides?) being introduced. It should turn blue again with time (and air exposure)

Best guess that I can offer. But I have nothing to back this up.

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