angular momentum Archives - Colin Stuart https://www.colinstuart.net/tag/angular-momentum/ Astronomy author and speaker Tue, 09 Mar 2021 11:09:10 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.5 https://www.colinstuart.net/wp-content/uploads/2021/03/cropped-Saturn1-32x32.png angular momentum Archives - Colin Stuart https://www.colinstuart.net/tag/angular-momentum/ 32 32 166732936 The day hasn’t always been 24 hours long, and it’s getting longer https://www.colinstuart.net/4887-2/ https://www.colinstuart.net/4887-2/#respond Wed, 17 May 2017 11:37:08 +0000 https://colinstuart.net/?p=4887 The day may be 24 hours long now, but that hasn’t always been the case. Nor will it be the case in the far future. The Earth’s rotation is slowing under the gravitational influence of the Moon. Billions of years ago, the day was just 18 hours long. The Moon and the Earth tug on […]

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