In 1928, he earned a doctorate in psychology, under the supervision of Karl Buhler. His dissertation was entitled "Die Methodenfrage der Denkpsychologie" (The question of method in cognitive psychology). In 1929, he obtained the authorisation to teach mathematics and physics in secondary school, which he started doing. He married his colleague Josefine Anna Henninger (19061985) in 1930. Fearing the rise of Nazism and the threat of the Anschluss, he started to use the evenings and the nights to write his first book Die beiden Grundprobleme der Erkenntnistheorie (The Two Fundamental Problems of the Theory of Knowledge). He needed to publish one to get some academic position in a country that was safe for people of Jewish descent. However, he ended up not publishing the two-volume work, but a condensed version of it with some new material, Logik der Forschung (The Logic of Scientific Discovery), in 1934. Here, he criticised psychologism, naturalism, inductionism, and logical positivism, and put forth his theory of potential falsifiability as the criterion demarcating science from non-science. In 1935 and 1936, he took unpaid leave to go to the United Kingdom for a study visit.
Whose rise to power motivated Popper to publish his work in hopes of obtaining an academic position abroad?
Nazism

These years included what was called "spectacularly malicious coverage" of the Labour Party by The Sun and other newspapers. During the general election of 1983 The Sun ran a front page featuring an unflattering photograph of Michael Foot, then aged almost 70, claiming he was unfit to be Prime Minister on grounds of his age, appearance and policies, alongside the headline "Do You Really Want This Old Fool To Run Britain?" A year later, in 1984, The Sun made clear its enthusiastic support for the re-election of Ronald Reagan as president in the USA. Reagan was two weeks off his 74th birthday when he started his second term, in January 1985.
Who did The Sun say was not fit to be Prime Minister in 1983?
Michael Foot

Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison filed his first patent application for "Improvement In Electric Lights" on 14 October 1878. After many experiments, first with carbon in the early 1880s and then with platinum and other metals, in the end Edison returned to a carbon filament. The first successful test was on 22 October 1879, and lasted 13.5 hours. Edison continued to improve this design and by 4 November 1879, filed for a US patent for an electric lamp using "a carbon filament or strip coiled and connected ... to platina contact wires." Although the patent described several ways of creating the carbon filament including using "cotton and linen thread, wood splints, papers coiled in various ways," Edison and his team later discovered that a carbonized bamboo filament could last more than 1200 hours. In 1880, the Oregon Railroad and Navigation Company steamer, Columbia, became the first application for Edison's incandescent electric lamps (it was also the first ship to execute use of a dynamo).
How long did Edison's light burn during his first successful test in 1879?
13.5 hours