How cells get moving

Archaea, bacteria and eukaryotes are what biologists call the three domains of life. Of these three, archaea form an important link within the evolutionary theory. They are the direct ancestors of eukaryotes, but resemble ...

Here's a fact: We went to the moon in 1969

Fifty years after Neil Armstrong and Buzz Aldrin walked on the moon, some people insist it never happened and was all a big hoax by the U.S. government.

New tools in the battle against online data misuse

Advances in digital technology are challenging our concept of privacy. In today's world, huge volumes of data are being collected, shared and stored in unprecedented ways and at tremendous speeds. Everything we do with our ...

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Flag

A flag is a piece of fabric with a distinctive design that is usually rectangular and used as a symbol, as a signaling device, or decoration. The term flag is also used to refer to the graphic design employed by a flag, or to its depiction in another medium.

The first flags were used to assist military coordination on battlefields, and flags have since evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is similarly challenging (such as the maritime environment where semaphore is used). National flags are potent patriotic symbols with varied wide-ranging interpretations, often including strong military associations due to their original and ongoing military uses. Flags are also used in messaging, advertising, or for other decorative purposes. The study of flags is known as vexillology, from the Latin vexillum meaning flag or banner.

This text uses material from Wikipedia, licensed under CC BY-SA