Computerized chessboard displays should be better

You can’t tell everything just by looking at a game position on a traditional physical chessboard. If you see: You can’t necessarily tell: the board orientationwhose turn it is to movewhat castling rights existwhich pawn, if any, can be captured en passant There are also lots of other things you can’t tell, such as whether…… Continue reading Computerized chessboard displays should be better

Black holes

Black holes are well understood by physicists, but I’ve read too many oversimplified, confusing, and seemingly-contradictory descriptions of them. Over time, I’ve settled on my preferred mental model of a black hole, one that usually helps me to work out the right answers to questions that non-physicists have about black holes. (An example of such…… Continue reading Black holes