Saturday, October 19, 2019 ... Deutsch/Español/Related posts from blogosphere

Squeezing amino acids from comets

...in order to create life...

Just a short comment. Yesterday, the Astrobiology Magazine discussed a paper that will be heavily promoted in the coming issue of Chemical Science,

Synthesis of functionalized nitrogen-containing polycyclic aromatic hydrocarbons and other prebiotic compounds in impacting glycine solutions
by Rebecca Lindsey and 2 men from LLNL. (I chose the middle author because the name is both female and easy to pronounce. That's how it works today, sorry, Gentlemen.) They used some nice quantum quantum chemistry approaches to argue that comets could have been helpful for the birth of life on Earth.

Friday, October 18, 2019 ... Deutsch/Español/Related posts from blogosphere

Top IPCC's paleoclimatologist agrees that Mann's hockey-stick papers were wrong

Two days ago, Tom Nelson (via Willie Soon) informed us about some juicy revelation:


Note that the tweet also includes a link to a McIntyre audio on Watts' blog.

According to an influential IPCC official, McIntyre and McKitrick were right in their criticism of the papers by Michael Mann et al. – the so-called hockey stick reconstruction of the global mean temperature.

Thursday, October 17, 2019 ... Deutsch/Español/Related posts from blogosphere

Primitive communism is mostly a myth

As schoolkids in the communist 1980s, we were taught that the human society has evolved from the primitive communism to slavery, feudalism, capitalism and its later stage, imperialism, to socialism – which we were just enjoying – before we would arrive at communism. To avoid misunderstandings, our countries were officially "socialist" countries while "communism" was the money-free nutty utopia where you may "do whatever you like to do and take whatever you want". ;-) The last stage hasn't worked too well so far although, especially in recent years, many brainwashed people want to restore this sickly fantasy about the future.

But I want to focus on the first stage, the primitive communism. The meme was coined by Marx and greatly elaborated upon by Friedrich Engels, the Thunberg-like spoiled brat from a wealthy family who decided to rebrand a stinky lazy homeless vagabond Karl Marx as an intellectual. In the German original, the regime was called Urkommunismus – it is the same Ur as in Pilsner Urquell (The Primordial Source [of Golden Transparent Beer] from Pilsen) – and for some reasons, we use a very different term

prvobytně pospolná společnost
in Czech which sounds contrived, self-explanatory, a bit poetic, and non-ideological. It roughly translates as the "primordially-settled together-ish society". I would like to know the details but I guess that the first translator of Marx's and Engels' rants to Czech decided it was a great idea to replace the ideological word revolving around "communism" with a non-ideological one. It may speed up the propagation of the meme in the anti-ideological Czech nation, he may have believed. Well, it has worked for me.

Wednesday, October 16, 2019 ... Deutsch/Español/Related posts from blogosphere

Czech PM: expansion of nuclear energy stands above the EU law from our viewpoint

PM Babiš has earned some positive points from me recently – by his at least partly critical attitude to Greta, to some new mass migration proposals, and by his dropping from the 2nd wealthiest Czech citizen to the 4th place (I am a compassionate conservative). But today, he got some new points for nuclear energy.

Ironically, as I have previously mentioned, this year of Gretinism – which would produce a lot of support for nuclear energy if there were at least some rationality in this movement – has been accompanied by a new anti-nuclear wave, too.



The eyes on Temelín's cooling towers were real (in 2018) and became the largest videomapping in Czechia so far (the Prague Astronomical Clock videomapping was surely much more sophisticated, however). And they were created by Mr Milan Cajs, the drummer of Tata Bojs. Not bad.

Aside from the climate hysteria, we are constantly bombarded by anti-nuclear propaganda, too. A month ago, Reuters hyped a "study" saying that nuclear energy was too slow and too expensive to save the climate. Cool!

Tuesday, October 15, 2019 ... Deutsch/Español/Related posts from blogosphere

Political prisoners in Germany and Spain

While the post-communist part of Europe behaves sanely these days, Western Europe is split and a big part of it has been devoured by novel political movements that want to totally destroy all the opposition, everyone who disagrees with them, and they are ready to use the worst possible tools.

Germany is currently led by a hardcore ecofascist government that wants to punish the German citizens even for their very disagreement with ecofascism. A driver has decorated his car in this way. The pigtails are nicely hanging from that car and the author of the idea wisely and generously recommended a young Scandinavian political leader to "fudge off, Greta" and he rightfully bragged that the climate change "problem [was therefore] solved".

What is the reaction by the ecofascist Merkel government? Three years in prison for that driver. The driver has just expressed his opinion about an extremely troubling political movement that is contaminating much of Europe and North America these days. The pigtails are clearly just a symbol of the unhinged ecofascism we are seeing everywhere around us. That particular spoiled brat wasn't in any way threatened by that driver.

Monday, October 14, 2019 ... Deutsch/Español/Related posts from blogosphere

Drought left Czechia, no apologies heard

Like most other places, Czechia has seen some drier periods and some humid ones. The latest "big flood" took place in 2002. Recent five years were relatively dry.



This is what the drought conditions looked like yesterday, on a beautiful sunny Sunday October 13th, according to Intersucho.cz (Interdrought). Almost everything is white – no risk of drought. On that Intersucho.cz website, you may choose Czechia, Slovakia, or Europe; and the interval to play the evolving dry places as an animation.

Sunday, October 13, 2019 ... Deutsch/Español/Related posts from blogosphere

Governor of North France demands a war budget against the political Islam

In my country and elsewhere, it's taken for granted that countries like France have already been lost and their drift towards becoming Islamic republics is unstoppable and irreversible. Well, I am an optimist who happens to think it's far from clear.

Le Point published some explosive pronouncements by Xavier Bertrand, a former Republican and the governor of Hauts-de-France, the Northernmost province of France with 6 million people.

Saturday, October 12, 2019 ... Deutsch/Español/Related posts from blogosphere

Equalities are the most vital equivalences

The equal sign is innocent, it doesn't prevent us from studying some very abstract geometric structures

A few days ago, Kevin Hartnett wrote a provoking article about mathematics for the Quanta Magazine,

With Category Theory, Mathematics Escapes From Equality
If you think that some mathematicians finally fight against the left-wing egalitarianism and its worshiping of equality, well, the truth is somewhat less optimistic. ;-)

The human hero of the story is Jacob Lurie, a mathematician who recently moved from Harvard to IAS Princeton. I do believe that he is an extremely good mathematician – also because of his classifications of topological field theories, research into exceptional groups, and more. But the Quanta Magazine article is about Lurie's somewhat idiosyncratic hobby, namely his holy war against the equal sign.

There shouldn't be any equalities like \(2+2=4\), the article argues. Instead, all equalities should be loosened to equivalencies, like in category theory, which are better because equivalences come in many flavors and degrees. And the original category theory of Eilenberg and MacLane (1945) wasn't loose enough which is why we need to switch to "infinity categories" and Lurie's articles that are some 8,000 pages long in total.

Friday, October 11, 2019 ... Deutsch/Español/Related posts from blogosphere

Fermion masses from a Δ(54) heterotic orbifold

Stephen King, the King of Horror, didn't receive the Nobel prize in literature for his 200 short stories yesterday – the award went to Austria and Poland instead. Similarly, neither Trump nor the aggressive Swedish teenager got the Nobel prize in peace today – instead, it actually went to a guy (prime minister) who established peace in Ethiopia. ;-) Clearly, the committee in Oslo needed and still needs to recover some credibility after it was overspent in recent years.

But Stephen King (I guess it is a different one) is the most famous author name of an exciting 4-author hep-ph preprint today

Flavon alignments from orbifolding: \(SU(5) \times SU(3)\) model with \({\mathbb T}^6/\Delta(54)\)
The masses of quarks and leptons are free and arbitrary parameters in the Standard Model and one of the most obvious collections of data that expects to be explained by a deeper theory – some SUSY/GUT or ideally string theory.

Thursday, October 10, 2019 ... Deutsch/Español/Related posts from blogosphere

It's clear why the number of Earth-like planets is so imprecise

...because the term is neither quantitatively well-defined nor useful...

Two weeks ago, Ethan Siegel more or less defined the scientific method as the mindless obedience to Greta Thunberg (combined with the mandatory anti-quantum-mechanics crackpottery). I thought it wasn't the right definition and virtually everything he wrote was upside down.

One week ago, he wrote a text

Astronomers Debate: How Many Habitable Planets Does Each Sun-Like Star Have?
which highlights his mathematical illiteracy and the mathematical illiteracy of several astronomers – and the wisdom of Michael Crichton. To make the story short, the astronomers agree about the interpretation of the Kepler data but they still have a very uncertain estimate about the number of Earth-like planet per Sun-like star – the estimates go from 0.013 and 1.24. And it's very surprising, Siegel wrote.

Well, for those of us who always knew that science wasn't a mindless worshiping of someone or something by words from a human language, it's not surprising at all.

When accusations of "groupthink" and "collection of likes" become ludicrous

If you want to understand what they mean by psychological projection...

Abraham (Avi) Loeb, the Israeli American chairman of astronomers at Harvard, has gotten some reasonably good press on this website. However, no sane person may doubt that he is a media-savvy or political flavor of a scientist whose visibility in the media overstates his contributions to physics – a field he actually loves to discuss loudly.

In recent years, the readers and viewers of the mainstream media have heard about him often because he has co-authored numerous wrong, silly, or vacuous preprints that were really professionally formatted troll's diatribes against physics, inflationary cosmology, and other things – and inkspillers in the popular science media (and millions of their stupid brainwashed readers and viewers) simply love this kind of pseudoscientific trash. That's why I laughed so much when someone sent me his October 8th essay in the SciAm blogs

Science Is Not about Getting More “Likes”:
Extraordinary groupthink leads to extraordinary ignorance
Both the title and the subtitle are combative yet true. However, in combination with the name of the author, these three lines are hilariously funny, indeed. And he's not a darling of the left-wing media just because he loves to repeat bitter, misguided remarks about the very value of physics and cosmology which are too speculative according to Loeb. He's also a darling of the popular media because he's a boss of an organization looking for extraterrestrial aliens. Physics is too speculative for him but ETs around us are not! Cool.

Wednesday, October 09, 2019 ... Deutsch/Español/Related posts from blogosphere

Mapping Calabi-Yau threefolds by the degenerated representatives

The chemistry Nobel prize goes to the de facto invention of lithium-ion batteries. It's not a terribly huge advance in pure science but as applied science, it's been literally game-changing, of course. Although Czechia has a top European reservoir of lithium, I do hope that we will switch to lithium-free batteries at some point.



The first hep-th paper today is
Classifying Calabi-Yau threefolds using infinite distance limits
by Grimm and two co-authors (NL/CH/UK) that elaborates on a nice and clever way to map the landscape of the Calabi-Yau threefolds. Their excitement is seen on the fact that they worked hard enough to post the preprint at the top – it was posted 3 seconds after the new arXiv.org day started.



They look at special points in the landscape of these 6-real-dimensional manifolds that may be very useful for "navigation" in that landscape – at the degeneration limits.