Who was the first to estimate the weight of the Earth?

Who was the first to estimate the weight of the Earth

Before the correct estimation, the Earth has been weighed by several scientists around the world. However, its estimated weight was first calculated using an experiment conducted from 1797 to 1978 by an Englishman named Henry Cavendish. The scientist estimated that our planet weighs about five and a half times as much as … Read more

What is the peculiarity of the natural wonder Angel Falls?

What is the peculiarity of the natural wonder Angel Falls?

In November 1933, Jimmie Angel, an American bush-pilot, discovered a magnificent waterfall in the middle of a dense forest in the hilly area located in Venezuela, a country in South America. He saw the waterfall while flying his Flamingo-type monoplane, although his purpose for flying to that area was to find an … Read more

What is smoke made of?

What is smoke made of?

“Dracarys.” All Daenerys had to do was to say that magic word, and set everything ablaze. Thousands of innocent people were slaughtered as the Mad Queen sat atop Drogon, and go all-evil and burn King’s Landing to the ground. Siblings and lovers Cersei and Jaime Lannister were both crushed, bringing their secret … Read more

Which acids are contained in the acid rain?

Which acids are contained in the acid rain

Acid rain is additionally referred to as acid deposition or acid precipitation. Acid rain is mainly a result of air pollution. It includes any kind of precipitation that contains a high amount of nitric or sulfuric acid. The precipitates are not necessarily to be wet or liquid; they can be dry or … Read more

Why does a river curve and twist instead of running straight?

Why does a river curve and twist instead of running straight

There are many bodies of water in our planet, wherein its surface takes up 71 percent of water, and among these bodies of water, includes the river. Rivers are usually long watercourses, flowing with fresh water towards oceans, seas, lakes, as well as another river. There are plenty of rivers all around … Read more