What Color is the Sun?

What Color is the Sun?

Although the sun often appears yellow, and changes colours at sunrise and sunset, the color of the sun is actually white.

What is an Isohyet?

What is an Isohyet?

An isohyet is a line on a map which connects points that have the same amounts of precipitation in a given period or for a particular storm.

The Story of Bir Tawil

The Story of Bir Tawil

Bir Tawil is deserted land on the border between Sudan and Egypt that has with no trace of permanent inhabitants.

How Many Species of Birds Are There?

How Many Species of Birds Are There?

Although the tradition count is between 9,000 to 10,000 bird species, new research has estimated the number at a possible 18,000 species of birds.