While sleeping this morning, I was thinking of a system of poison. The `poison n' (n \in N) was like this. n must not be prime. Since n is not a prime, n can be broken down into several primes that make n by multiplying. Take the biggest d…

今日は日本語です。方言に関することなので、日本語人がきちんと参照できるように日本語で書きます。 さっき私の祖母がぽろっと言った「よんど」という言葉の意味が分からなかったので、よく聞いてきました。「どうしても」というような意味だと本人は言って…

A disclaimer: the title means only that this is about Duolingo. Umm. Apropos of nothing, in Duotch (Duolingo-Dutch, because I mainly spend time in Duolingo), `Mogen zij morgen zwemmen?' is supposed to be translated as `Are they allowed to …