06 Jun 10
Originally posted by sonhouseIts not impossible at all. The power of the wind is quite separate from its speed.
It seems impossible but they have done it.
Even a car with a sail can travel faster than the speed of the wind.
From Wikipedia:
http://en.wikipedia.org/wiki/Land_sailing
"Modern land sailors, generally known as "pilots," can go three to four times faster than the wind speed, because of Bernoulli's principle."
07 Jun 10
What is unique about this car, is not its speed compared to the wind speed, but the fact that its direction of travel is the same as that of the wind ie it is moving faster than the wind in the direction the wind is blowing - something that is impossible with a sail.
You can sail downwind fast than the wind speed, but to do so you must travel at an angle to the wind, and your velocity in the direction of the wind will not exceed that of the wind.
07 Jun 10
Originally posted by twhiteheadOK now I've clicked the link. Thats cool.
What is unique about this car, is not its speed compared to the wind speed, but the fact that its direction of travel is the same as that of the wind ie it is moving faster than the wind in the direction the wind is blowing - something that is impossible with a sail.
You can sail downwind fast than the wind speed, but to do so you must travel at an angle to the wind, and your velocity in the direction of the wind will not exceed that of the wind.
How does it work?
