Well, today is supposed to be World Backup Day (so I found a pretty good how-to for you who need to mend your ways: http://www.howtogeek.com/howto/30173/what-files-should-you-backup-on-your-windows-pc/), but Google also tells us that Robert Bunsen’s 200th birthday is celebrated today, so it is showing a commemorative animation on its site today (screen grab included here in case you are too late for the real thing). But most of all, this is a beautiful day, the first time I have felt inklings of spring for many months. As I walked to and from work: