Founded in 1977 the Cato Institutes 1998 budget made up US$ 11 million. Its funding consists of corporate and private donations (especially from corporations and executives in the highly regulated industries of financial services, telecommunications and pharmaceuticals industries) and sales of publications.
Catos corporate donors include tobacco firms:
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The water-clocks are an early long-distance-communication-system. Every communicating party had exactly the same jar, with a same-size-hole that was closed and the same amount of water in it. In the jar was a stick with different messages written on. When one party wanted to tell something to the other it made a fire-sign. When the other answered, both of them opened the hole at the same time. And with the help of another fire-sign closed it again at the same time, too. In the end the water covered the stick until the point of the wanted message.
Hieroglyphs are pictures, used for writing in ancient Egypt. First of all those pictures were used for the names of kings, later more and more signs were added, until a number of 750 pictures
Atbash is regarded as the simplest way of encryption. It is nothing else than a reverse-alphabet. a=z, b= y, c=x and so on. Many different nations used it in the early times of writing.
for further explanations see:
Supposedly his real name was Aeneas of Stymphalus. He was a Greek military scientist and cryptographer. He invented an optical system for communication similar to a telegraph: the
Polybius was one of the greatest historians of the ancient Greek. he lived from 200-118 BC. see:
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It is a system, where letters get converted into numeric characters.
The numbers were not written down and sent but signaled with torches.
for example:
A=1-1
B=1-2
C=1-3
W=5-2
for more information see:
Java applets are small programs that can be sent along with a Web page to a user. Java applets can perform interactive animations, immediate calculations, or other simple tasks without having to send a user request back to the server. They are written in Java, a platform-independent computer language, which was invented by
Source: Whatis.com