Tour de France

That's kind of a vague question, as the descents aren't that sharply defined. Depending on if the hill has a sharp or a gentle crest and bottom, you might get a rather different result related to where you put the start and the end of the section that you want the average speed for.

But 80 kmh/50 mph is a common speed to reach.

The Tour de France was not organised during WWI (ther was no race from 1915 to 1918) and between WWII (no tour from 1940 to 1946). Otherwise it has never been cancelled or interrupted.

From Wikipedia: Hors catégorie is a French term used in cycle races (most notably, the Tour de France) to designate a climb that is "beyond categorization", an incredibly tough climb.

Alberto Contador and Andy Schleck, but do not discount Cadel Evans, Bradley Wiggins, Lance Armstrong, Roman Kreuzinger, Dennis Menchov, Ivan Basso and even Robert Gesink with the amount of mountain stages in this years tour.

Never. See Neil Armstrong was on the moon.

Historical writings are very important for a person, a group or race, and a country. These writings are the means to understand our past. Our identification, beliefs, religions and our ideologies today are because of our past. So, historical writings are very essential and must solely base on facts.

As of the 2008 Tour de France, no British cyclist has ever won the Tour. One British cyclist, Robert Millar, was King of the Mountains in 1984.

Hilltop Hoods -- The Hard Road

from the tour de France website: "Running from Saturday July 3rd to Sunday July 25th 2010, the 97th Tour de France will be made up of 1 prologue and 20 stages and will cover a total distance of 3,642 kilometres."

Jacques Anquetil won five tours. First in 1957 and then four times in a row from 1961 to 1964.

Three actually.

There are two separate rest days, which splits the race into three sections.

Lance Armstrong never crashed out of the 2010 Tour. While he did have multiple crashes, he completed the Tour.

There is no official purple jersey in the Tour de France. You might have seen a team jersey in that colour.

Greg LeMond. Greg Lemond almost didn't testify, because he was threatened to have his childhood molestation secret exposed by the Landis defense team. Thankfully, Greg Lemond still testified despite the secret being released, much to his credit. His testimony was not very favorable to Floyd's case.

The famous race that awards the winner of the race the yellow jersey is the Tour de France. The person with the fastest time to the finish is awarded with the honorable yellow jersey.

the last cyclist used to receive 'la cuillère de bois' (a wooden spoon), which was a valueless trophy but used to bring some fame to the cyclist. It is out of fashion nowadays.
There is no official prize or monetary reward. The last-place rider simply gets the prestige of being known as the "lanterne rouge" or "red lantern," signifying the red lights at the tail or caboose of a train.
The last rider in the Tour de France is historically referred to as the "Lanterne Rouge" (meaning: Red Lantern). This is a reference to the older trains which hung a red lantern off the last car to signify the end of the train.

Oh, sure.

Close to the cities, they'll be lining the roads. Outside the cities, you'll still find them wherever there's a good chance of something interesting happening, along severe climbs, fast descents, or along the sprint zones.

Road bicycles.

He was determined because he had cancer and wanted to prove to himself and to the world that he was stronger than his cancer.

Tour de France

you will be amazed =D

Usually by team buses. Longer transfers, they fly.

There is no official red jersey that means anything in le tour de france.

You might have seen a team jersey with a lot of red in it.

There used to be a red jersey, awarded for intermediate sprints points, but it wasn't that useful and was cancelled in 1989.