▽Karl Popper
●09/16 05:52
First published Thu Nov 13, 1997; substantive revision Wed Sep 15, 2021
Popper was also profoundly impressed by the differences between the allegedly “scientific” theories of Freud and Adler and the revolution effected by Einstein’s theory of Relativity in physics in the first two decades of the twentieth century. The main difference between them, as Popper saw it, was that while

▽Sense-Data
●09/15 04:15
Consider your present visual experience. Suppose that you are seated at a table in a garden. You are looking at objects on the table and at the vivid colors of flowers in nearby beds. Now focus on a particular static instance of your looking: the moment in which you see a white coaster on a brown garden table with a cut daisy lying just beyond the coaster. The sense data for this scene would be th

▽Quantum Mechanics
●09/14 08:41
￥(￥ket{A}￥) and ￥(￥ket{B}￥) are mutually perpendicular, or orthogonal, if, and only if, ￥(￥braket{A}{B} = 0￥).
We can try to restore logical consistency by giving up the dynamical rule for contexts of type 2 (or, what amounts to the same thing, by denying that there are any such contexts), but then we have the problem of consistency with experience. For it was no mere blunder that that rule was in

▽仙洞御所
●09/09 00:23
ｼｽﾃﾑ停止日時令和3年9月8日（水）18:00〓9月9日（木）19:00（予定）
Service Suspension Period：at 6:00 p.m JST on Wednesday September 8th - at 7:00 p.m JST on Thursday September 9th

▽修学院離宮
●09/08 21:40
ｼｽﾃﾑ停止日時令和3年9月8日（水）18:00〓9月9日（木）19:00（予定）
Service Suspension Period：at 6:00 p.m JST on Wednesday September 8th - at 7:00 p.m JST on Thursday September 9th