Who was the first woman to appear on the Korean won?

50,000 Korean won coin

Won is the currency of Korea with the following types: 4 coins with denominations: 10 won, 50 won, 100 won, 500 won and 4 banknotes with denominations: 1,000 won, 5,000 won, 10,000 won, 50,000 won . In particular, two bills with denominations of 5,000 won and 50,000 won bear imprints that cannot be found on … Read more

World record for fastest landslide in history

Columns of ash rising from the summit of St. Helens in 1980.

On May 18, 1980, the St. Helens in Washington state, USA exploded powerfully, causing a large earthquake. The explosion caused the top of the volcano to collapse and create a huge landslide. Notably, this landslide is considered the fastest in history with a speed of up to 402.3 km / h. A landslide as fast … Read more

"Unveiling" the painful truth behind the world's first X-ray experiment

X-rays have helped modern medicine a lot, but early experiments to detect it cost people their own lives. In December 1985, German physicist Wilhelm Roentgen submitted a preliminary report to the journal of the Würzburg Medical-Physiological Society, describing the discovery of “a new type of ray” . The never-before-seen type of radiation, which he named … Read more

What is plasma?

Plasma is one of the four basic gravity of matter. First described by chemist lrving Langmuir in the 1920s. Composed of a gas of ions. In other words, the atoms have lost some of the free electrons in their orbitals. The ghost plasm is associated with many phenomena in the universe. They describe the behavior … Read more