As a junior and having switched my major from business to physics, I get the feeling that there are so many opportunities for businesses, by using physics and science. For example at http://www.sciencedaily.com/ you can see that every day there are what seems like hundreds of great ideas coming out daily, ideas which, if I had had them, I would try to turn them into a business. I mean if you look at the types of stupid business ideas that people regularly turn into billion dollar companies, selling useless products or turning some tiny tiny opportunity into a million dollar business, when I see all of the great ideas by scientists, which are actually ideas that will provide REAL economic benefits to those who use them, I cant help but wonder what happens to all of these ideas. Do academics often try to commercialize their ideas, and they actually do become rich, but we just never hear about it, or perhaps they are contacted by some company that buys out their idea, or do the companies just steal their ideas, or is it actually MUCH harder than I imagine to turn an experimentally proven idea into a economically viable idea? Why don't venture capitalists just rush over and invest with these ideas? If an academic wanted to turn one of their ideas into a business, would it be easy for them to do so, or is venture capital actually much harder to come by? Also, if you have personally ever tried to commercialize an idea, are there more challenges than you predicted?