It is estimated that at least 10 percent of American adults are trypanophobic, meaning they have an abnormal fear of medical procedures involving hypodermic needles. Sufferers exposed to such procedures may experience anxiety, faintness, sweating, nausea, and panic attacks, and they may therefore avoid inoculations, blood tests, and, in extreme cases, all medical care. How many deaths have been attributed to vasovagal shock stemming from trypanophobia?
Back in the day
Founded in Iran in the mid-19th century by Baha' Ullah, Bahá'í is a religion based on the unity of all faiths. Adherents pray daily, fast 19 days a year, and follow a strict ethical code. Because of the religion's 19 initial disciples, the number 19 is considered sacred, and the Bahá'í calendar, which began in 1844, consists of 19 months of 19 days, with four additional "intercalary" days. Today is the first day of the 168th year of the Bahá'í Era. On what day does the Bahá'í week begin?
Born on a day like today
Fourier was a French mathematician and Egyptologist. As an engineer on the Egyptian expedition led by Napoleon—who later made him a baron—he conducted anthropological investigations and wrote the preface to the monumental Description de l'Égypte, whose publication he oversaw. In mathematics, he is primarily known for his work in heat conduction, for his use of the Fourier series to solve differential equations, and for the related concept of the Fourier transform, which is what?