A Sephardi Jewish couple from Sarajevo in traditional clothing, 1900

A simple, yet effective trick

When exposed to ultraviolet rays, scorpions begin to glow.

Construction of one of the twin towers at the World Trade Center in lower Manhattan, New York City, 1970. In the background at right is the Empire State Building

Norwegian fjords are an ideal place for a wingsuit.

At present, the world population of polar bears is between 20 and 25 thousand, and its numbers are gradually decreasing.

🇬🇧 King George VI and the Queen Mother survey the aftermath of a German bombing raid in September 1940 which destroyed Buckingham Palace chapel.

Dude made neural nets play Charades - one model draws an SVG image and the others try to guess what it is.

Annually, tens of thousands of stingrays make their way to the coastline of the Baja California Peninsula on the Sea of Cortez.

This is one of the few places on the planet where they can be seen in such numbers.😱

Polish King Jan III Sobieski defeats the Ottoman Turks at the Battle of Vienna, 12 September 1683, by Martino Altomonte. Sobieski led the Polish cavalry along with Austrians and Germans in a massive charge down the hillside towards to the Ottoman besiegers surrounding Vienna. Soon, the Ottoman battle line was broken and their forces scattered in disarray.
This battle marked a turning point in Ottoman expansion into Europe, after which they gained no further ground.

Wasp eats a Mantis alive while the Mantis eats a Wasp alive!

Building a cruise ship

Black veterans at a Confederate veterans reunion in Tampa, Florida, 1927

The difference between subways in Japan and India.

Order vs. chaos

The amazing frog Hylomantis lemur

Frogs of this species have encountered chytridiomycosis. That's an infectious disease of amphibians caused by microscopic freshwater fungi.

Wehrmacht soldiers dismantling Polish government insignia in Gdynia soon after the invasion of Poland in September 1939.

Cloud chamber (Wilson chamber).

That’s a unique device capable of making normally invisible particles of radioactive radiation visible.

The kookaburra is one of Australia's national symbols, along with the platypus and the koala.

🇬🇧 A barrage balloon over Tower Bridge in London during the Battle of Britain, WWII, c. 1940

90s pc never obsolete