E. H. Powell Discovered and stuck a critical vulnerability of Britannica, namely, that its revenue (and, hence, the company's money) fluctuated strongly about the lifetime-cycle of an version. Soon after the release of a new edition, gross sales would generally commence powerful, and drop progressively for 10–20 years as the https://www.facebook.com/NewTechFind/posts/pfbid02iWCgvPKasbi4qvFcxpvhML766MwG8iPiNbmJuhg9xv35qAMxEvA7XwEutMma5gQSl