gravitational singularity
(informal) The jargon or pep talks employed by sports coaches.
(physics) A location where the quantities that are used to measure the gravitational field become infinite in a way that does not depend on the coordinate system.
Of an area, having too much artificial light including street lighting, which prevents stars etc. being seen in a clear night sky.
Clicks and mortar.
アカウントを持っていませんか? 新規登録
アカウントを持っていますか? ログイン
DiQt(ディクト)
無料
★★★★★★★★★★