There is a very good explanation found at http://www.watchtower.org/e/200604a/article_01.htm that I think you would enjoy reading. Wikipedia covers the history of the cross as well at http://en.wikipedia.org/wiki/Cross.
The tilted cross, also known as the St. Andrew's Cross, is a Christian symbol representing the martyrdom of Saint Andrew, who was crucified on a diagonal cross. The traditional upright cross symbolizes the crucifixion of Jesus Christ. The tilted cross is often associated with humility and self-sacrifice, while the upright cross represents redemption and salvation.
see link History [of the] Cross
You can find information about the value and history of an old coin with a cross on it by consulting numismatic books, visiting coin dealers or collectors, or researching online on websites like Numista or the American Numismatic Association.
a history of the discovery of the Rosetta stone and many peoples attempt to translate it
Bipedal locomotion, Upright posture
Jesus was definitely nailed, upright, to a cross.
The tilted cross, also known as the St. Andrew's Cross, is a Christian symbol representing the martyrdom of Saint Andrew, who was crucified on a diagonal cross. The traditional upright cross symbolizes the crucifixion of Jesus Christ. The tilted cross is often associated with humility and self-sacrifice, while the upright cross represents redemption and salvation.
Standard
There is no set standard, but I would suggest the Golden Proportion of 1.618 to 1 as aesthetically pleasing.
He was hung on a stake not a cross, the translation for the word cross from Greek is stauros which means upright pale or steak. The actual cross is an idol for nature worship and pagan sex rites.
It is called a gallows.
Actually the cross was not in use during the the time of Jesus, the original Greek word in the new testament was "stau-ros" or in Latin "crux". which simply meant stake or upright pole. In fact the Jews had a history of executing criminals in this manner such as the account at Ezra 6:11. It was not until later translation when the word cross was put in place instead of the later more accurate translations of the bible.
If you think of the stitch as a letter T, it means work into the upright rather than the cross bar.
Arthur Lyon Cross has written: 'A history of England and greater Britain' -- subject(s): History
The first upright pianos were made at the end of the 1700s. The most common piano of the 1800s was the upright. Please see the site below, "A Brief History of Pianos".
Stau‧ros′ in both the classical Greek and Koine carries no thought of a "cross" made of two timbers. It means only an upright stake, pale, pile, or pole, as might be used for a fence, stockade, or palisade. Says Douglas' New Bible Dictionary of 1985 under "Cross," page 253: "The Gk. word for 'cross' (stauros; verb stauroo . . . ) means primarily an upright stake or beam, and secondarily a stake used as an instrument for punishment and execution."
The Greek word for cross is "σταυρός" (stauros). In ancient Greece, the term was used to refer to an upright stake or pole, often used for executions. Over time, it came to specifically denote the cross on which Jesus Christ was crucified in Christian theology.