Albert Sabin conducted at Johns Hopkins Hospital in 1992 when Sabin was 86. A year later, Sabin died in Washington, D.C., from heart failure. Sabin refused to patent his vaccine, waiving every commercial exploitation by pharmaceutical industries, so that the low price would guarantee a more extensive spread of the treatment. From the development of his vaccine Sabin did not gain a single dollar, and continued to live on his salary as a professor. Albert Sabin Albert Bruce Sabin (born Abram Saperstein; August 26, 1906 – March 3, 1993) was a Polish American medical researcher, best known for developing the oral polio
By His Bootstraps By His Bootstraps "By His Bootstraps" is a 20,000 word science fiction novella by American writer Robert A. Heinlein. It plays with some of the inherent paradoxes that would be caused by time travel. The story was published in the October 1941 issue of "Astounding Science Fiction" under the pen name Anson MacDonald; the same issue has "Common Sense" under Heinlein's name. "By His Bootstraps" was reprinted in Heinlein's 1959 collection "The Menace From Earth", and in several subsequent anthologies, and is now available in at least two audio editions. Under the title "The Time Gate", it was also included