This is a warning especially to East Asians,
most of which have never seen anything like this, because in China for example,
there is no such thing and it is unheard of. Now they are warned to avoid Western
European cities such as Berlin, London, and Paris. There are No Go Areas in
those cities, but the authorities deny this, and so there
are for example no warning signs posted around such areas!
The physics of nanometer sized bubbles is mysterious and controversial. Gas bubbles in liquids are unstable. Also large air bubbles in water are not stable. Even if we keep them somehow from rising to the surface and popping, the surface tension of the bubble itself presses the air out of the bubble and into the liquid! The physicist calls this ‘Laplace pressure’. We do not notice this with large bubbles. However, with a nanobubble, the Laplace pressure dissolves it in a few micro seconds.
Usually the arXiv does time wasting nasty things like delay and then re-categorize articles with inconvenient truths into unsuitable categories where nobody of the target audience will find it and the usual audience is not interested. This however is 2016, the year where the liberal denial of reality has accumulated so much suffering, for example to the Black community, women, the Middle East ..., that people can no longer stand it.
Everybody, males, females, Whites, non-Whites, ... is nowadays personally harmed by the established anti-scientific ideology of denying the differences between humans and our evolutionary constraints. A positive feedback loop after a certain threshold has now been reached:
Zen cooking according to the teachings of the master-less monk Feng Sa Sha (风洒沙, Wind Sprinkling Sand) is, unsurprising perhaps when considering the radical fundamentality of Zen, not only the most inexpensive and easy as well as perhaps most importantly, great tasting of all cooking, but moreover it is the most healthy and wholesome diet – no surprise that it is consistent with and full of good science.
This is the reply after asking a scientist to endorse putting a draft of an article into a more fitting category on the arXiv, which is a mere preprint archive (not a journal or anything like that) where I already put almost 20 articles, and the endorsement would be anonymous, so this established scientist fears that the enforcers at the PC arXiv may notify his or her University - this is the state of free speech today, the reality of the scientific community:
I am truly sorry about certain things that I wrote. For example, I have previously written about "mass incarceration" of blacks and guns in the US. I have done so also with the feeling that such would give me more traction with "liberal" readers - yes, I often cannot stop myself from being an asshole - I am truly sorry about this and hang my head in shame!