Light pollution is also a big contributor
alsimoneau
joined 2 years ago
LaTeX is your friend
So I did some digging and the use of 1-second pendulum as a unit of length predates the metre by about a century. It's very possible it informed the choice of ratio to use when defining it properly, like we did with the recent definition change.
It's all on Wikipedia if you want to dive in yourself.
The mass cancels out.
I don't know if it's purely a coincidence. The meter comes from the Earth's circumference (1/10 000 000 of the pole-equator distance) and I believe the second is much older, which points to a coincidence.
I went from a 750M (my laptop, that I still have) to a RX580. It's starting to show its age but I haven't encountered a game that's unplayable yet.
Lenovo IdeaPad Y500, bought in 2017. I've added an SSD at some point and it's still chugging along, but it's starting to show its age.
I'm not hauling this as the ultimate time keeping method. Friction in the system will mean you need to readjust it anyways. It's just a neat fact that pi^2 ~= g
It's only 0.3% off. You probably have more uncertainty on the length of the pendulum.
Also, noon is when you set your clocks based on the sun.
How do you count on your hands in base 60?
A 1m pendulum has a 1 second half-period.
People are afraid of the dark, and the more they chase it away the more afraid they become.