Domain: tikalon.com
Stories and comments across the archive that link to tikalon.com.
Stories · 3
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Sexism In Science
An anonymous reader writes with news of a recent paper about the bias among science faculty against female students. The study, recently published in the Proceedings of the National Academy of Sciences, asked professors to evaluate applications for a lab manager position. The faculty were given information about fictional applicants with randomly-assigned genders. They tended to rate male applicants as more hire-able than female applicants, and male names also generated higher starting salary and more mentoring offers. This bias was found in both male and female faculty. "The average salary suggested by male scientists for the male student was $30,520; for the female student, it was $27,111. Female scientists recommended, on average, a salary of $29,333 for the male student and $25,000 for the female student." -
Superannuated Scientists Still Productive
An anonymous reader writes "Modern corporations seem to have devalued older scientists. They are all to happy to have their veteran employees, scientists included, take an early retirement so that they can be replaced by younger people who expect fewer benefits and will work for lower pay. Thomas Kuhn, philosopher of science and author of the influential book, The Structure of Scientific Revolutions, believed that revolution in science was forged only by younger scientists. Some older studies of small academic groups seemed to show that scientific productivity peaks at middle age and declines thereafter. A newer study of 13,680 university professors found that scientific productivity still increases up to age 50, and it then stabilizes from age fifty to retirement for the more industrious researchers. When 'high impact' publications are considered, researchers older than 55 still hold their own. A recent paper in the Proceedings of the National Academy of Sciences shows that the majority of Nobel Laureates in Chemistry from 1901 to 1960 did their prize-winning work by age 40. After 1960, chemistry laureates were more likely to have done their prize-winning work after age 40." -
Proving 0.999... Is Equal To 1
eldavojohn writes "Some of the juiciest parts of mathematics are the really simple statements that cause one to immediately pause and exclaim 'that can't be right!' But a recent 28 page paper in The Montana Mathematics Enthusiast (PDF) spends a great deal of time fielding questions by researchers who have explored this in depth and this seemingly impossibility is further explored in a brief history by Dev Gualtieri who presents the digit manipulation proof: Let a = 0.999... then we can multiply both sides by ten yielding 10a = 9.999... then subtracting a (which is 0.999...) from both sides we get 10a — a = 9.999... — 0.999... which reduces to 9a = 9 and thus a = 1. Mathematicians as far back as Euler have used various means to prove 0.999... = 1."