Recent content by Borek

That's true for every atom.

Assuming someone decided "we don't need any confirmation of GR, why should we research such a natural, completely useless phenomena" back at the beginning of the XX century, we would have no reliable GPS system, which millions of drivers use to navigate and earn more by not getting lost. So you...

Just look at the map - most landmass (which is much easier to research and we know about it lot more, than about sea floor) happens to be now in the northern hemisphere. In a way it is purely accidental, it wasn't this way in the past - but at the time there was no civilization capable of research.

I just tried in the incognito mode in Chrome: manually typed physicsforums dot com as the address, then got to Random photos in two clicks without any problems.

Looks like the link to PF is being substituted by an entirely different link. Can be a problem with LINE, can be an infected device, I don't see how the problem could be on PF side (doesn't mean it is completely impossible, but that's hardly a first thing to suspect).

Not sure why you call it "a PF link". From what screenshots show this is a link to myiq dot com, which is recognized as "not safe" by the browser (and quick googling suggests it is often recognized as a scam site related to IQ tests).

Note: there is always series of hydrates, differing with the number of water molecules, and getting to each next step requires higher temperatures. Sometimes they are more stable and the thermogravimetric curve (basically you heat the sample very slowly and you register mass of the sample...

Translucent crystal vs opaque powdery is a typical difference between hydrated and anhydrous (doesn't mean it always works this way, and I would never assume something is really anhydrous just because it is white and powdery, but that's a good first guess when you see such an effect). There is...

There was an article (in Scientific American perhaps?) about how to create artificial microgravity in satellites by using a long, stiff beam to move the center of gravity away from the main part of the satellite. Could help settle any dust particles inside (if needed for any reason).

Add to that google search results. Told you lack of underline has become a de facto standard. Yes, back in the day it was different. It no longer is.

I believe underline showing up when you hover mouse them is a de facto standard, so changing it doesn't sound good. You can always make links bolded, to stand out from the text.

Once you know the basics of the quantum chemistry - how electrons behave in atom, how and why they are organized in "groups" (orbitals, shells) - answer becomes more or less obvious. Octet is one of these numbers that come naturally from the solution of Schroedinger's equation and relate to the...

Drying hydrates is (almost) never simple, some of these salts have water molecules that can't be removed without destroying the compound itself, some will lose final water molecules at much higher temperatures than 100 °C. To make things worse actual number of water molecules in the sample can...

To some extent that's a definition of every science built around measurable properties. Yes, physics tends to be more rigorous, but whenever spherical cow approximation is good enough it fits the same box. Thing as basic as Ohm's law is difficult to show experimentally as real resistance...

TBH the idea is so vague I feel like my every attempt would yield just some trivial, useless truism.