14/8/2020, Somálsko


https://www.bbc.com/future/article/20200806-the-biblical-east-african-locust-plagues-of-2020

global forecast: http://www.fao.org/ag/locusts/common/ecg/75/en/200803forecast.jpg

BIS Lunar Spacesuit. Designed by the British Interplanetary Society in 1949 by a team that included Arthur C. Clarke, it was the first real attempt to design a spacesuit for the Moon and even included a cape!

140 million year old 500kg dinosaur femur discovered in France

Lieutenant Kirk Booth of the U.S. Signal Corps being lifted skyward by the giant Perkins man-carrying kite at Camp Devens, Ayer, Massachusetts. While the United States never used these kites during the war, the German and French armies put some to use on the front lines.

9 weeks old human fetus from an ectopic pregnancy

A human skull slowly being absorbed by limestone in a cave.

Vladimir Demikhov a jeho experiment z 50 let, dvouhlavy pes

Kadidlovník na ostrově Sokotra

Včera Zlín

https://twitter.com/slovborg/status/1276273813609742343

RIP Byron 'Reckful' Bernstein - katedrála ve Stormwindu na jednom ze serverů World of Warcraft - hráči se loučí s jednou z největších legend

https://www.npr.org/.../881943143/barcelona-opera-reopens-with-an-audience-of-plants?t=1592984184610

Léto v Norilsku

nad Saharou zafoukalo a vítr nese písek přes oceán

This is an image of galaxy M87, the same galaxy where scientists were able to produce an image of the supermassive black hole at the center. That black hole has also produced the long blue string observed in this Hubble Space Telescope image – called a relativistic jet.

This jet is a string of high-energy particles moving at nearly the speed of light. As matter falls into the black hole at the center, some portion of it is accelerated and fired out of the galaxy along its rotation axis, in part likely accelerated by the powerful magnetic field of the black hole. This string of matter is nearly 5000 light years long, and it does appear pulsed, meaning that occasionally something entering the field of the black hole triggers large eruptions.

Zarážející obraz nedávno spáleného stromu, který odhaluje jeho cévní tkáň, xylem a floem.
To je cévní tkáň stromu, xylem a floem. Ano, stromy mají cévní systém - v zásadě nese vodu a minerály od kořenů až po listy a fotosyntetizované jídlo zpět dolů ke zbytku stromu.
Zajímavost: stromy nemají svaly (ani nervovou soustavu), takže je veškerý tento pohyb poháněn tlakem turgor, který je ovládán stomaty v listech, které se otevírají a zavírají podle potřeby.

Bird singing in the cold air