Building a bottle battery

If you read my blog, you’ll have seen my recent review of my RSP Asteri 2 bike lights. I talked about making a bottle battery, and now I have. Unfortunately I forgot to take photos after the first couple of steps but never mind. What you’ll need I used the following parts, but you canContinue reading “Building a bottle battery”

A weekend in Hereford

Hannah and I went to Hereford this weekend. The weather was nice, and we had a really nice time relaxing. I managed a few photos too. The golden Autumn sunlight cast a lovely glow over the city. First we visited the cathedral. It seemed rude to take photos inside, but I managed this photo ofContinue reading “A weekend in Hereford”

Various Nagios plugins

I’ve now written several Nagios plugins and submitted them all to MonitoringExchange. Here’s a quick summary: check_temper for monitoring the temperature with a TEMPer USB thermometer check_kernel for checking that the currently running kernel on an RPM-based system is the most recent installed kernel (not necessarily the latest available kernel in the repository) check_aql_balance forContinue reading “Various Nagios plugins”

Some 35mm macro shots

I took these photos with a 35-70mm lens, using an additional macro lens. A pink lily Cotton reels A crystal of aragonite Unfortunately the developing lab treated my negatives pretty badly, as I wrote about on my blog earlier today. Here’s a close-up of some of the scratches on the second aragonite photo, which IContinue reading “Some 35mm macro shots”