Polonium initiator was classified until the 1960s. The Atomic Energy Commission and the Manhattan Project funded human experiments using polonium on five people at the University of Rochester between 1943 and 1947. The people were administered between of polonium to study its excretion. Polonium is a very rare element in nature because of the short half-life of all its isotopes. Po, Po, and Po appear in the decay chain of U; thus polonium can be found in uranium ores at about 0.1 mg per metric ton (1 part in 10), which is approximately 0.2% of the abundance of radium. The amounts
The Fifth Element films among his readers, regarded as both the best and the worst summer blockbuster of all time. Kermode recalled his own experience: "I remember very clearly being in Cannes when "[The] Fifth Element" was first played, and it "really" divided the audience." Stephen Cass of "Discover" ranked the film the third-best science fiction film on subscription service Hulu, writing, "People seem to either like or loathe "The Fifth Element "... Lavish visuals and entertaining performances from Bruce Willis, Milla Jovovich, and Gary Oldman make this movie worth watching." In some circles the film has gained a "so-bad-it's-good" status; Meredith Woerner