物理学 on 问衿的学习笔记https://wenjinji.cn/en/subjects/%E7%89%A9%E7%90%86%E5%AD%A6/Recent content in 物理学 on 问衿的学习笔记HugoenThu, 10 Sep 2026 00:00:00 +0000They Gave 1,701 Supernovae an "Age Checkup" — and the Evidence for Cosmic Acceleration Shiftedhttps://wenjinji.cn/en/episodes/decelerating-universe/Thu, 10 Sep 2026 00:00:00 +0000https://wenjinji.cn/en/episodes/decelerating-universe/Apply an age correction to 1,701 supernovae, and the Nobel-winning cosmic acceleration signal vanishes — the deceleration parameter flips from −0.04 to +0.31.Three Suns of Mass, Burned Into a Single Chirp in 0.2 Secondshttps://wenjinji.cn/en/episodes/gravitational-waves/Mon, 17 Aug 2026 00:00:00 +0000https://wenjinji.cn/en/episodes/gravitational-waves/36 + 29 solar masses merged into 62: the missing 3 suns became a 0.2-second gravitational-wave chirp.