severákova polívka

asi zelňačka (mainly in czech)

(fork of

severak 27.12.2020 14:27:57

Reverse Engineering the source code of the BioNTech/Pfizer SARS-CoV-2 Vaccine - Articles

ελληνικά / Deutsch / Português Welcome! In this post, we’ll be taking a character-by-character look at the source code of the BioNTech/Pfizer SARS-CoV-2 mRNA vaccine. I want to thank the large cast of people who spent time previewing this article for legibility and correctness. All mistakes remain mine though, but I would love to hear about them quickly at or @PowerDNS_Bert Now, these words may be somewhat jarring - the vaccine is a liquid that gets injected in your arm.

severak 26.12.2020 11:56:11

The idea that sperm race to the egg is just another macho myth – Robert D Martin | Aeon Essays

The idea that millions of sperm are on an Olympian race to reach the egg is yet another male fantasy of human reproduction

severak 10.11.2020 14:29:38

Digital sound processing tutorial for the braindead!


severak 10.11.2020 11:59:32

Inside the Secret Math Society Known Simply as Nicolas Bourbaki

For almost a century, the anonymous members of Nicolas Bourbaki have written books intended as pure expressions of mathematical thought.

severak 29.10.2020 15:21:54

Where Do Eels Come From?

There is much to be learned from how little we know about them.

severak 9.9.2020 14:54:35

Stavební normy. Silnice do horoucího pekla asfaltované dobrými úmysly

Cesta k městům, ve kterých se bude dobře žít, je zabetonovaná dobrými úmysly. Které zplodily obludné předpisy.

severak 4.7.2020 18:24:33

Shit, shit, every where (or: notes on the difficulties of classifying shits)

This article is an experiment. Here I wrestle to retell and redescribe my experience of working and studying water and sanitation and, while I am doing that, I grow a form of reflexivity that inter...

severak 17.3.2020 22:03:24

America's Love of Male Trees Could Be Why You're Sneezing Right Now

One researcher calls it "botanical sexism."

severak 5.3.2020 09:57:03

Earth has acquired a brand new moon that's about the size of a car

Astronomers have spotted an asteroid that has been captured by Earth's gravity, making it a temporary mini-moon. It will probably fly away again in April

severak 4.3.2020 09:31:39

Věda podle Cecila

Co přesně znamená 100 stupňů Fahrenheita? A chcete si to přečíst, nebo pamatovat?

severak 3.3.2020 12:06:01

Thinking about color

An exploration of building accessible color systems for flexible UI theming.

severak 12.2.2020 11:57:58

No One Can Explain Why Planes Stay in the Air

Do recent explanations solve the mysteries of aerodynamic lift?

severak 13.1.2020 09:58:31

Není to ostuda, ale odvaha. Nobelistka stáhla kvůli chybě vědecký článek -

Držitelka Nobelovy ceny za biologii Frances Arnoldová stáhla jeden vědecký článek, u kterého je uvedena jako vedoucí autorka. Americká bioložka veřejně upozornila na chybu ve své práci a požádala o její stažení z prestižního časopisu. Jde o ukázku toho, jak bojovat s problémem zvaným replikační krize.

severak 9.1.2020 17:03:19

Why are some things darker when wet?

Have you ever wondered why some things become dark when you spill water on them? What’s exactly happening?  Well, let’s find out! SourceBefore I explain this phenomenon to...

severak 1.1.2020 12:48:40

This Insect Has The Only Mechanical Gears Ever Found in Nature

The small hopping insect Issus coleoptratus uses toothed gears on its joints to precisely synchronize the kicks of its hind legs as it jumps forward

severak 1.7.2019 10:35:46

Why plants don’t die from cancer

Humans and other mammals and birds would have been killed many times over by Chernobyl's radiation that plants in the most contaminated areas received. So why is plant life so resilient to radiation and nuclear disaster?

severak 21.6.2019 15:13:37

Jak pozorovat blesky v horních vrstvách atmosféry

Snímek ukazuje jednotlivé druhy TLE, jejich vzhled, barvu a výšku v atmosféře. Globální cirkulace

severak 20.6.2019 14:21:20

Connecting the dots: nitrogen dioxide over Siberian pipelines

New maps that use information from the Copernicus Sentinel-5P satellite reveal emissions of nitrogen dioxide along a Siberian natural gas pipeline that connects the Urengoy gas field – the second-largest gas field in the world – with Europe.

severak 28.5.2019 13:44:29

Henrietta Lacks

Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) was an African-American woman whose cancer cells are the source of the HeLa cell line, the first immortalized cell line and one of the most important cell lines in medical research. An immortalized cell line reproduces indefinitely under specific conditions, and the HeLa cell line continues to be a source of invaluable medical data to the present day.Lacks was the unwitting source of these cells from a tumor biopsied during treatment for cervical cancer at Johns Hopkins Hospital in Baltimore, Maryland, U.S., in 1951. These cells were then cultured by George Otto Gey who created the cell line known as HeLa, which is still used for medical research. As was then the practice, no consent was obtained to culture her cells, nor were she or her family compensated for their extraction or use. Lacks grew up in rural Virginia. After giving birth to two of their children, she married her cousin David "Day" Lacks. In 1941 the young family moved to Turner Station, near Dundalk, Maryland, in Baltimore County, so Day could work in Bethlehem Steel at Sparrows Point...

severak 21.5.2019 13:33:05

Sci-Hub | | 10.1056/NEJMp1811491

Stroumsa, D., Roberts, E. F. S., Kinnear, H., & Harris, L. H. (2019). The Power and Limits of Classification — A 32-Year-Old Man with Abdominal Pain. New England Journal of Medicine, 380(20), 1885–1888. doi:10.1056/nejmp1811491

severak 11.4.2019 16:50:34

How Building a Black Hole for Interstellar Led to an Amazing Scientific Discovery


severak 22.3.2019 13:30:09

Příběh české vědecké stanice v Antarktidě: Slaví deset let

Jak vznikala polární stanice na ostrově Jamese Rosse? Výroční přednáška Pavla Proška bude 22. února.

severak 12.3.2019 10:19:20

Magnetic resonance imaging of male and female genitals during coitus and female sexual arousal

Objective: To find out whether taking images of the male and female genitals during coitus is feasible and to find out whether former and current ideas about the anatomy during sexual intercourse and during female sexual arousal are based on assumptions or on facts. Design: Observational study. Setting: University hospital in the Netherlands. Methods: Magnetic resonance imaging was used to study the female sexual response and the male and female genitals during coitus. Thirteen experiments were performed with eight couples and three single women. Results: The images obtained showed that during intercourse in the “missionary position” the penis has the shape of a boomerang and 1/3 of its length consists of the root of the penis. During female sexual arousal without intercourse the uterus was raised and the anterior vaginal wall lengthened. The size of the uterus did not increase during sexual arousal. Conclusion: Taking magnetic resonance images of the male and female genitals during coitus is feasible and contributes to understanding of anatomy.

severak 8.3.2019 15:24:38

Cloudy With a Chance of War - Issue 70: Variables - Nautilus

The burial detail, which had come for the corpses in the pigpen, was surprised. The “dead” were getting up and speaking English.…

see more...