Why is the night sky dark?

Why is the night sky dark?

Simple, but long troubled mankind. There is a problem that has come to the right answer since it came to modern science.

Why is the night sky dark?

For our modern people who have forgotten this night, this sounds like an absurd question.

The moments of history in photography 1895-1999

1895. British veteran Winston Churchill during the Sandhurst Civics.

Churchill's father wanted Churchill to support the Infantry Division, but Churchill's mathematics score was too low to enter the Infantry Division.

Instead, Churchill entered the cavalry and graduated with one of the best grades at the time of graduation.

Incidents of the three top entertainment companies in Korea. YG entertainment

Incident of YG entertainment

Daesung traffic accident

May 31, 2011 at 1:30 am The traffic accident

Motorcycle driver killed in the accident

The police said that the accident occurred because of neglecting the front, and because the accident occurred at 80km / h at the speed limit of 60km / h, the person was not detained because of the violation of the speed of regulation.

On August 29, 2011, the South District Prosecutors 'Office of the Seoul Central District Prosecutors' Office sincerely pleaded guilty to the death of a traffic accident in Daesung.

What I felt while living in China.kfc

A lot of people have a preconceived notion that everything is pretty bad and bad. In real life, at least on the surface, it is hard to find a difference.

Moreover, the place I live in is called Guangzhou because it is one of the most important cities on the continent.

Nevertheless, when I live and use it, I do not know, "Fuck!" The word comes out.

Let's see what the fuck is like.

Unidentified stone found in the jungle of Costa Rica

In the 1930s, an American fruit company was discovered in the jungle of Costa Rica for the first time trying to clear a banana plantation. Since then, more than 200 have been found, ranging in size from 2cm in diameter to over 2m in size, Ton.

The Opatts are presumed to be remnants of the old architecture that existed at the time of its discovery or disappearance in the year of its founding, and it is presumed to be a stoneware culture that flourished in the area between 300 and 800 AD.

A look at the defeat of Germany in World War II

Introduction

<From left: Hirohito, Mussolini, Hitler, Churchill, Stalin, Roosevelt>

The Second World War was the greatest war in human history, and it would be a giant historical heritage that would fall to modern humans. This may seem unlikely if you treat history as simply a list of tightly packed scripts of thick history books, but history is, unexpectedly simple, that every second every minute of doing something, whether unproductive or productive, is also a history Even if it is indifferent to these huge events, it will not be free from its influence.

41 interesting facts.

1. The time when Cleopatra lived was closer to the iPhone's invention than the 'Giza Pyramid'.

(Pyramids of Giza: pyramids made in the 4th Dynasty of Ancient Egypt, about 4500 years ago, pyramids of King Kufu, pyramids of Khafre and pyramids of King Mankaura. , The state of preservation is also good)