Friday, 24th April, 2026

During the day I think of these things I want to do on the computer. Then by the evening when I have time to do it, I’m not interested. Mostly just being a bit tired but also it seems like a chore.

I wanted to finish my time book - Splitting the Second. It’s both very interesting and boring at the same time. Some sections go into more detail than I really want but there are plenty of sections that are interesting. It’s a comprehensive book on time and how it’s measured and how that’s changed over human life, plus the application of very accurate time keeping.

Now we have very accurate time, it gets impacted by Einstein’s special relativity where “moving clocks go slow”. It’s somewhat of a hard concept to grasp 🤓 but is it time being affected or the mechanism that is used to keep time? If I could somehow build a nanosecond accurate quartz clock would that also go slow. They did experiments with radio signals coming back from the Viking landers on Mars and when Mars was behind the sun the radio waves slowed down going around the sun, and they travel at the same speed…or something like that.

Relativity was in Artemis book about how the other species didn’t know about relativity.

Glorious sun today and off out into the hills with my hiking buddy. We haven’t actually been out together for a couple of months now, for various reasons. Be doing a local hill, which will remind me they’re still interesting even though I’m not chasing points and I’ve done it twice before.