Actually I have heard about Dyson bladeless fan in 2009, and I really love the design,but it’s too expensive! You know what, this concept is for cooling extrusions in a factory and not his “invention”. But he named it the Dyson fan anyway. The name and the price tag gave me the impression of ego and greed, which may not be true at all. He believed that it would sell even if way overpriced. He is right. Some people are buying it. But I think he would be much smarter and...