Penicillin nontoxic in humans by first performing toxicity tests in animals and then on humans. His subsequent experiments on penicillin's response to heat and pH allowed Fleming to increase the stability of the compound. The one test that modern scientists would find missing from his work was the test of penicillin on an infected animal, the results of which would likely have sparked great interest in penicillin and sped its development by almost a decade. The importance of his work has been recognized by the placement of an International Historic Chemical Landmark at the Alexander Fleming Laboratory Museum in London on
Dancing on the Valentine on the Valentine" with the band's previous two-track Video 45, "Duran Duran". Certified Gold by the RIAA( Billboard magazine week ending February 23, 1985 ) Dancing on the Valentine Dancing on the Valentine is a Duran Duran video single released by PMI in the UK and Sony in the US in . It was released on VHS, Beta, Laserdisc, and Video8 (8mm) format. "Dancing on the Valentine" is a collection of the three videos from "Seven and the Ragged Tiger". The title comes from the lyrics of "The Reflex": "You gone too far this time / But I'm dancing on