Solved: the value of infinity is just over a tre­cent­esim­quint­illion, says the jq json formatter

Too cloudy to see the shower this evening. Hopefully tomorrow will bring clearer skies!

To vote in the UK, you now need photo ID.

Check you have valid ID by applying for a Voter Authority Certificate: the questions check if you already have valid ID. Not all ID cards are valid.

If you need a Voter Authority Certificate, it's free.

I used my phone to take a photo of myself in front of a white-ish wall. It was accepted for the voter certificate (and rejected in my passport renewal).

The certificate itself is paper and A4 size.

Ghost Horse Bag by Simon Monk. It's not a real object. It's not a photograph. It's a painting. The holes in the board are also painted. From a set of paintings which need to be seen to be believed. On at the Beecroft in until the end of May.

Had a fun time installing Windows 98 in a virtual machine, for the nostalgia of it. Very thankful to whoever made tool which patches a memory cache invalidation bug - modern CPUs are faster but not as forgiving, causing shell32.dll to crash

The Natural History Museum used to sell huge lumps of rock, such as this Madagascan ocean jasper geode, for thousands of pounds

Doing the backup of my laptop's data, which I haven't done in years. Be better than me - sort out your backups today!

Diamond Geezer talks about pylons - featuring the amazing Open Infrastructure Map Not many pylons in London, but I've photographed the tallest.

A Tour of C++ by Bjarne Stroustrup is a great guide of how to write good, idiomatic C++ code - which bits to use and what to avoid.

Success: got a box of covid tests free from the local library. More than just books!

Mike Massimino's book is a very good read, covering the Space Shuttle and Hubble, and what it takes to become an Astronaut.

I love all Catherine Fisher books, and The Relic Master is no exception. An exciting sci-fi/fantasy adventure story, which is easy to read and hard to put down.

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