… a zatiaľ v našej kúpeľni

Kým som sa ja minulý týždeň hrala s deťmi na počítače (nie na počítači!) na Žilinskej detskej univerzite, u nás v kúpeľni sa začali diať veci:

Víkendové surfovanie

Včera vo veku 40 rokov na rakovinu zomrela Maryam Mirzakhani, matematička iránskeho pôvodu, jediná žena, ktorá dostala Fieldsovu medailu (keď sa dávali naposledy, v roku 2014). Mala českého manžela a malú dcéru.

To her dismay, Mirzakhani did poorly in her mathematics class that year. Her math teacher didn’t think she was particularly talented, which undermined her confidence. At that age, “it’s so important what others see in you,” Mirzakhani said. “I lost my interest in math.” The following year, Mirzakhani had a more encouraging teacher, however, and her performance improved enormously. “Starting from the second year, she was a star,” Beheshti said.

A Path Less Taken to the Peak of the Math World

When you teach, you do something useful. When you do research, most days you don’t.

That Huh would achieve this status after starting mathematics so late is almost as improbable as if he had picked up a tennis racket at 18 and won Wimbledon at 20. It’s the kind of out-of-nowhere journey that simply doesn’t happen in mathematics today, where it usually takes years of specialized training even to be in a position to make new discoveries. Yet it would be a mistake to see Huh’s breakthroughs as having come in spite of his unorthodox beginning. In many ways they’re a product of his unique history — a direct result of his chance encounter, in his last year of college, with a legendary mathematician who somehow recognized a gift in Huh that Huh had never perceived himself.

Teaching to fail – vďaka Ondrovi za linku

The most common errors in undergraduate mathematics – aj táto je dobrá a tiež Ondrova

You Don’t Need Blue Apron to Teach You to Turn On Your Oven

Whenever I write a recipe for a magazine or newspaper my editors demand more measurements and cooking times. This phony precision undermines the heart, and joy, of cooking. Chefs sample their dishes multiple times as they cook because cooking happens by taste and by eye, not by time and temperature. Baking is the fussy one where you need measurements, while cooking is for slobs like me.

Does that look like enough pasta? Does this taste as salty as you like? That sauce looks thin — let’s throw in some more tomatoes. People become dependent on cooking times and temperatures because they don’t understand how cooking works, they know only how to follow a recipe.

Datascapes – atlas for the end of the world; somewhat related: Summary of Solutions by Overall Rank

The tragedy of men

The biggest problem with masculinity, Perry proffers, is that it’s based on a model that’s several thousands of years old, when survival depended on physical strength and male power. Or, as he puts it, “masculinity is to chase things and fight things and to fuck. Everything else is a bit of a mismatch.” This framework for men has remained remarkably persistent even as society has evolved past it, with modern jobs and relationships requiring a very different set of skills. Feminism, Perry observes, is forward-thinking, wondering how women can change themselves and their lives for the better. But masculinity is regressive, always “harking back to some mythical golden age (for men), when men were ‘men.’” The easiest thing in the world to sell to men who feel disenfranchised from modern life, he says, is nostalgia—a promise that the world can change to fit them rather than the other way around. That men can be great again.

s kým trávime čas – trochu smutné grafy; zaujímavé by bolo pozrieť, či/ako sa slovenské podobajú na tie americké

meet Ruby and her friends

Snow leopard

About me: I’m the most beautiful, polite and well-mannered Snow leopard I know. I often have fights with the robots. (Which is kind of pointless, since we are similar in the end.) 
Birthday: June 8th
Interests: Solitude, Zen, and pirates
Pet peeve: People think I’m tough, but I’m really cuddly. 
Favorite expression: Think different
Secret superpower: Boundless beauty

Mladá osobnosť vedy Tomáš Bertók: Ľuďom chýba súdnosť a kritické myslenie

what bullets do to bodies

Early in my medical training, I learned that it is not the bullet that kills you, but the path the bullet takes. A non-expanding (or full-metal-jacket) bullet often enters the body in a straight line. Like a knife, it damages the organs and tissues directly in its path, and then it either exits the body or, if it is traveling at a slower velocity, is stopped by bone, tissue or skin.

This is in contrast to expanding bullets, especially if shot from an assault rifle, which can discharge bullets much faster than a handgun. Once they enter the body, they fragment and explode, pulverizing bones, tearing blood vessels and liquefying organs…

Two years ago, a group of doctors wrote in the Annals of Internal Medicine: “It does not matter whether we believe that guns kill people or that people kill people with guns — the result is the same: a public health crisis.” In the war zone of the E.R., we don’t see partisanship or politics. We see the devastation that happens when our society normalizes tools of total bodily destruction.

este raz (dlhšie a ťažké čítanie)… a tu je to celé v dvoch vetách

She started talking about the 2012 murder of 20 schoolchildren and six adults at Sandy Hook Elementary School. Goldberg said that if people had been shown the autopsy photos of the kids, the gun debate would have been transformed. “The fact that not a single one of those kids was able to be transported to a hospital, tells me that they were not just dead, but really really really really dead.

akčné fotky a fotky spod mikroskopu

Víkendové surfovanie

Greetings, E.T. (Please Don’t Murder Us.)

The anti-METI movement is predicated on a grim statistical likelihood: If we do ever manage to make contact with another intelligent life-form, then almost by definition, our new pen pals will be far more advanced than we are. The best way to understand this is to consider, on a percentage basis, just how young our own high-tech civilization actually is. We have been sending structured radio signals from Earth for only the last 100 years. If the universe were exactly 14 billion years old, then it would have taken 13,999,999,900 years for radio communication to be harnessed on our planet. The odds that our message would reach a society that had been tinkering with radio for a shorter, or even similar, period of time would be staggeringly long. Imagine another planet that deviates from our timetable by just a tenth of 1 percent: If they are more advanced than us, then they will have been using radio (and successor technologies) for 14 million years. Of course, depending on where they live in the universe, their signals might take millions of years to reach us. But even if you factor in that transmission lag, if we pick up a signal from another galaxy, we will almost certainly find ourselves in conversation with a more advanced civilization.

It is this asymmetry that has convinced so many future-minded thinkers that METI is a bad idea. The history of colonialism here on Earth weighs particularly heavy on the imaginations of the METI critics. Stephen Hawking, for instance, made this observation in a 2010 documentary series: ‘‘If aliens visit us, the outcome would be much as when Columbus landed in America, which didn’t turn out well for the Native Americans.’’ David Brin echoes the Hawking critique: ‘‘Every single case we know of a more technologically advanced culture contacting a less technologically advanced culture resulted at least in pain.’’

Wrestling with the METI question suggests, to me at least, that the one invention human society needs is more conceptual than technological: We need to define a special class of decisions that potentially create extinction-level risk. New technologies (like superintelligent computers) or interventions (like METI) that pose even the slightest risk of causing human extinction would require some novel form of global oversight. And part of that process would entail establishing, as Denning suggests, some measure of risk tolerance on a planetary level. If we don’t, then by default the gamblers will always set the agenda, and the rest of us will have to live with the consequences of their wagers.

America made me a feminist

In America, a woman’s body seemed to belong to everybody but herself. Her sexuality belonged to her husband, her opinion of herself belonged to her social circles, and her uterus belonged to the government. She was supposed to be a mother and a lover and a career woman (at a fraction of the pay) while remaining perpetually youthful and slim. In America, important men were desirable. Important women had to be desirable. That got to me.

Every New York City Subway Line Is Getting Worse

Sci-Hub Ordered to Pay $15 Million in Piracy Damages

Elsevier says: the Sci-Hub activity ’causes irreparable injury to Elsevier, its customers and the public’ and US court agreed. That feels like a perfect crime. If you want to cause an irreparable injury to American public, what do you have to do? Now we know the answer: establish a website where they can read research articles for free,” she adds.

Previously, Elbakyan already confirmed to us that, lawsuit or not, the site is not going anywhere.

Miška píše z Iraku


Fotil tréner na poslednom tréningu.

Jahodové pagáčiky (biscuits)

Minulú sobotu sme dostali debničku jahôd. Takých tesne za. Lekvár som už mala uvarený týždeň predtým, tak sme ich najprv jedli, potom sme ich pili s vodkou. A trochu som použila aj na tieto biscuits, ktoré som už dávno chcela vyskúšať, ale čakala som na prezreté domáce jahody.

560g hladkej múky
1 prášok do pečiva
1 lyžička sódy bikarbóny
100g cukru
1 lyžička soli
170g masla 
300g veľmi dozretých jahôd
480ml šľahačkovej smotany

Vyhrejeme rúru na 220C.

Premiešame v mise všetky suché prísady. Pridáme nakrájané maslo, trochu to prstami podrvíme. Netreba, aby cesto malo úplne homogénnu konzistenciu, stačí, aby tam neboli veľké hrudky masla. Pridáme nakrájané jahody a premiešame. Na záver vlejeme šľahačku a premiešame znovu. Môžme aj mierne pomiesiť rukami, ale v zásade čo najmenej, aby jahody neboli na kašu.

Poriadne pomúčime pracovnú plochu, cesto vyvaľkáme na 1.5 – 2cm a vykrajujeme cca 5cm kruhy. Poukladáme ich na papierom vystlatý plech. Keď znovu vymiesime zvyšky po prvom vykrajovaní, jahody už budú značne unavené a cesto bude lepkavé. Treba to nejako zvládnuť, na chuti to ničomu neuberie. Z tohto množstva vyšlo koliesok na dva veľké plechy.

Pečieme 12-15 minút. Podávame trochu teplé. Ideálne na raňajky s maslom alebo kyslou smotanou. Nie sú to úplne koláče, sú viac chlebovité ako sladké. Perfektné.

Kubko dvakrát pri tabuli

Najlepšie je ch. 

Ako dobre učiť?

Dnes na obede som sa od kolegu dozvedela o iniciatíve To dá rozum. Vraj s tým prišiel Mikloš. A dnes u nás na katedre bol tento mladý pán zisťovať, aké máme problémy. Držím im palce a prajem, aby z toho boli aj iné výstupy ako 200-stranový report v roku 2021, ktorý nikto nebude čítať.

Poobede sme boli s deťmi na Protikorupčnom pochode. Tak som s Kikou debatovala o tom, čo je to tá “korukcia” a čo znamenajú tie transparenty naokolo:Jeden z tých, ktorí vystúpili, bol aj Dávid Straka. Veľmi pekne spomenul aj učiteľov a učiteľky a ich minuloročny štrajk. Akurát škoda, že keď vystúpil mladý učiteľ, ktorý bol počas štrajku veľmi aktívny, tak jeho metafory zostali nepochopené.  

Mišo v Berlíne, decká, ktoré cestou z námestia asi prvýkrát v živote do nitky zmokli, už v posteli. Normálne by som telku ani nezapla, ale chcela som vidieť, čo budú v správach hovoriť o tom pochode. A potom som nechala bežať diskusnú reláciu Silná zostava na stv2. Dnes o tom, prečo kašleme na vzdelávanie. Jedna z diskutujúcich bola Petra Fridrichová z Pedagogickej fakulty UMB, analytička projektu To dá rozum. Náhodička… 

Na Desktope mi kvasí rozpísaný článok o Adaptive teaching. Mal to byť followup talku, ktorý som mala takto pred rokom v Gothenburgu. Akurát akosi nebol na to čas. Musím sa k tomu vrátiť.

A stále sa mi ježia chlpy, keď si pomyslím na svoje posledné dva zimné semestre, ako som učila predmet Modelovanie a simulácia. Prvýkrát som po pár týždňoch zistila, že sa na mňa rúti parný valec. Ešte som sa ho chvíľu snažila zastaviť, ale prešiel ma. V záujme zachovania vlastného duševného zdravia som chcela namiesto toho učiť niečo iné. Nie, to nešlo, tak minulú jeseň, už vediac, čo ma čaká, som do toho neochotne išla ešte raz. Prežila som to druhý raz. Ale ja takto nechcem učiť. Ani takto neviem učiť. Túto jeseň už našťastie budem mať namiesto toho iný predmet.

Zajtra sedím v komisii na bakalárskych štátniciach. Jednu inú komisiu zrušili, lebo kopa tretiakov nebude pripustených k obhajobám. Desiatky ľudí čaká disciplinárne konanie, lebo im našli zhodné odovzdané semestrálne práce z jedného predmetu. Podmienečné vylúčenie a tento rok končiť nebudú. Predmet si musia zopakovať. A my sa sústredíme viac na trestanie ako na prevenciu a výchovu…

Na poradách sa to u nás v práci vždy zvrtne na to, ako kvalita študentov klesá. Ale čo kvalita učiteľov a učiteliek? Tých na vysokej škole nikto neučil ako učiť. Pamätám si na prvé cvičenie v USA, na ktoré som išla ako inštruktorka. Nebolo mi všetko jedno. A to som mala už niečo odprednášané na matematických krúžkoch a sústredeniach. Nejako sa metódou pokus-omyl učíme, ale je rarita, že sa na hodinu príde pozrieť iný vyučujúci/a a dá následne prednášajúcemu/cej nejaký feedback. (Som veľmi rada, že práve na dvoch matických predmetoch, ktoré teraz učím, to tak je.) Vyučuje si kto chce ako chce, spätná väzba od študentov a študentiek sa (vo všeobecnosti) berie do úvahy len pramálo. 

Tento semester som mala na Diskrétnej pravdepodobnosti dva úplne rozdielne krúžky. Jedných sa mi podarilo namotivovať, vymýšľali zaujímavé veci, pýtali sa, do ankety písali, ako sa im páčila spoločná práca. S druhými to bolo brodenie sa v lepkavom blate, bububu, na pokusy o vtip nikto nereagoval. A ja neviem, čo som spravila inak. Niekde na začiatku semestra je akási magická hranica a ak sa to pred ňou podarí celé naštartovať, tak potom je to parádna jazda a ak nie, tak je to ako na kockatých kolesách. A nie je to prvýkrát, čo sa mi to podarilo. Ani prvýkrát, čo sa mi to nepodarilo. Ani posledný. Ale človek by povedal, že za tých 10 rokov, či koľko už učím, budem vedieť povedať trochu viac o tom, kde sa to láme.  

Keď na Kikinom rodičovskom združení okomentujem niečo týkajúce sa výučby, tak som ufónec. A to si otvorím ústa až po starostlivom zvážení, lebo vo všeobecnosti sa mi veľmi páči, ako sa v Kikinej triede učia, takže nechcem zbytočne rýpať. A to sa tam o výučbe ako takej rozpráva veľmi málo, väčšinou sa rieši kadejaká administratíva a logistika. 

Takže nie, neviem, ako dobre učiť. Ale tak nejako sa s tou otázkou stretávam v rôznych formách všelikde, pomerne často a zdá sa mi celkom dôležitá.

Wonder women

Wonder Women od Sam Maggs 

Táto kniha je skôr pre Kiku, keď raz začne poriadne čítať po anglicky, ale ja som si ju celkom s radosťou preletela. Sú to kid-friendly krátke životopisy 25 žien (plus spomína zhruba 25 ďalších), ktoré boli vedkyne, lekárky, špiónky, vynálezkyne a cestovateľky. Zaujímavé na tom je, že som z nich poznala len dve a Marie Skłodowska Curie, Rosalind Franklin alebo Jocelyn Bell Burnell sa na hlavný zoznam ani dostali. Výborné je aj to, že aj keď biele európanky alebo američanky prevažujú, slušné zastúpanie majú aj iné farby pleti a iné krajiny. 

Annie Smith Peck: A woman who has done good work in the scholastic world doesn’t like to be called a good woman scholar. Call her a good scholar and let it go at that… I have climbed 1,500 feet higher than any man in the United States. Don’t call me a woman mountain climber.

Jedna téma sa v knihe objavuje opakovane – ženy, ktorých objavy boli pripísané mužom:

But since Lise was exiled from Germany, Otto published their findings and Lise’s theory in the journal Nature – without giving Lise credit… Then in 1944, despite Lise having coined the term nuclear fission in her own Nature article in 1939, Otto won the Nobel Prize in chemistry for the discovery… Although his 1946 Nobel lecture did mention Lise five times, most people assumed she was merely Otto’s junior assistant, a misconception that he seems to have done nothing to correct.  

Je výborné, že aj takéto knihy vychádzajú. Representation matters. 

Víkendové surfovanie

A love story – úžasné

When we encounter a mother doing too many things perfectly, smiling as if it were all so easy, so natural, we should feel a civic responsibility to slap her hard across the face and scream the word “Stop!” so many times that the woman begins to chant or whimper the word along with us. Once she has been broken, we may take her in our arms until the trembling and self-hatred leave her body. It is our duty.

When I swim at the public pool, I wear sunglasses so I can admire the hairless chest of the nineteen-year-old lifeguard. I love it that he, a child, really, is guarding me, fiercest of warriors, a mother, strong as stinky cheese, with a ripe, moldy, melted rotten center of such intense complexity and flavor it would kill a boy of his tender age.

The answer is easy in daylight. But the night’s untethering almost always turns me into someone I’m not. I spend nights thinking about the different women I become in the dark. Where am I keeping these women when the sun is up?

The work of organizing everything – celé dobre a aj iné na jej stránke stoja za prozretie

koláčik navyše

I now live in Berkeley, California. A few years ago, just a few blocks from my home, a pair of researchers in the Cal psychology department staged an experiment. They began by grabbing students, as lab rats. Then they broke the students into teams, segregated by sex. Three men, or three women, per team. Then they put these teams of three into a room, and arbitrarily assigned one of the three to act as leader. Then they gave them some complicated moral problem to solve: say what should be done about academic cheating, or how to regulate drinking on campus.

Exactly 30 minutes into the problem-solving the researchers interrupted each group. They entered the room bearing a plate of cookies. Four cookies. The team consisted of three people, but there were these four cookies. Every team member obviously got one cookie, but that left a fourth cookie, just sitting there. It should have been awkward. But it wasn’t. With incredible consistency the person arbitrarily appointed leader of the group grabbed the fourth cookie, and ate it. Not only ate it, but ate it with gusto: lips smacking, mouth open, drool at the corners of their mouths. In the end all that was left of the extra cookie were crumbs on the leader’s shirt.

This leader had performed no special task. He had no special virtue. He’d been chosen at random, 30 minutes earlier. His status was nothing but luck. But it still left him with the sense that the cookie should be his.

This experiment helps to explain Wall Street bonuses and CEO pay, and I’m sure lots of other human behavior. But it also is relevant to new graduates of Princeton University. In a general sort of way you have been appointed the leader of the group. Your appointment may not be entirely arbitrary. But you must sense its arbitrary aspect: you are the lucky few. Lucky in your parents, lucky in your country, lucky that a place like Princeton exists that can take in lucky people, introduce them to other lucky people, and increase their chances of becoming even luckier. Lucky that you live in the richest society the world has ever seen, in a time when no one actually expects you to sacrifice your interests to anything.

All of you have been faced with the extra cookie. All of you will be faced with many more of them. In time you will find it easy to assume that you deserve the extra cookie. For all I know, you may. But you’ll be happier, and the world will be better off, if you at least pretend that you don’t.

tu je video:

Richard Hamming: You and your research

Now for the matter of drive. You observe that most great scientists have tremendous drive. I worked for ten years with John Tukey at Bell Labs. He had tremendous drive. One day about three or four years after I joined, I discovered that John Tukey was slightly younger than I was. John was a genius and I clearly was not. Well I went storming into Bode’s office and said, “How can anybody my age know as much as John Tukey does?” He leaned back in his chair, put his hands behind his head, grinned slightly, and said, “You would be surprised Hamming, how much you would know if you worked as hard as he did that many years.” I simply slunk out of the office!
What Bode was saying was this: “Knowledge and productivity are like compound interest.” Given two people of approximately the same ability and one person who works ten percent more than the other, the latter will more than twice outproduce the former. The more you know, the more you learn; the more you learn, the more you can do; the more you can do, the more the opportunity — it is very much like compound interest. I don’t want to give you a rate, but it is a very high rate. Given two people with exactly the same ability, the one person who manages day in and day out to get in one more hour of thinking will be tremendously more productive over a lifetime.

tento článok o Iráne ma doviedol k tejto podivnosti

find great books to read without judging the cover (or the author)

my bionic quest for Bolero 


Druhácky projekt a ôsme narodeniny

(To by bol nadpis do diktátu! Teraz sa učia číslovky a majú ich podčiarkovať…)

Kikin druhácky projekt bol o očiach a zraku. Ako praktickú časť sme vyrábali 3D okuliare.

A na druhý deň po obhajobách oslavovala narodeniny. 

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