> Cool stuff but not exactly new tech They explain that in the article, and the fact that it newer tech and lighter columns to get a net benefit. Having grown

> Cool stuff but not exactly new tech They explain that in the article, and the fact that it newer tech and lighter columns to get a net benefit. Having grown up in France, I knew about Cousteau's Alcyone (it was a big deal at the time) and had been wondering why it hadn't been used more since then.