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Archives for February, 2011

Pretty Norman Church

Here’s a pretty and very old Norman church I saw this morning: This is inside the remains of the Roman town at Silchester, which you may remember I visited last summer. Here, for comparison, is what the ruins look like in the winter. It’s still a very pleasant place!

Cuckoo Hashes in Lisp

I’ve been learning about cuckoo hashing this evening and to help with that I’ve written an implementation in Common Lisp that others might find useful: cuckoo.lisp. It provides a package cuckoo which exports make-cuckoo-hash, cuckoo-insert, cuckoo-lookup, and cuckoo-delete which perform the obvious hash-table operations. The key feature of cuckoo hashes, if you haven’t come across […]

TrainGame updates

I’ve been quite silent about TrainGame recently, but it’s not dead! I have been working on it a little bit – here’s an up-to-date screenshot: The most obvious change is the new green train! Eventually there’ll be multiple trains driving around and you’ll have to take care not to bump into each other. I’ve also […]

Loudwater, Henley, things in between

Yesterday I went for a walk between Loudwater (near High Wycombe) and Henley on Thames. Here’s roughly where I went: Distance was a tad over 14 miles. Not a lot of interesting things to report: it was mostly quiet countryside alternating between farmland and woodland. The Chiltern Hills are very pretty: I should go there […]

Sonning Bridge

Here’s a nice photo of the bridge at Sonning that I took a few weeks ago and forgot to post.