corollary

I can’t donate because I’m not in the US

This site is very amusing, and heart-warming too, because it looks as if the candidate is actually going to make his target.

Oh alright, I admit that I’d find it rather less heart-warming if the politician didn’t also seem to be espousing the right sort of message...

Why is it only now, when I come to write the slides, that I realise how weak some of the things we’re proving are?

Dijsktra Making Good Sense

And if you have not a ready-made function [...] at your disposal in terms of which to describe the net effect of such a compound statement, invent this function and be sure that its properties are nice and also the ones that you want. If you cannot find such a function, don’t ignore that warning, for then you are on the verge of messing things up.

From EWD-273 by Edsger Dijkstra.

(Perhaps I’m going to turn this weblog into my commonplace book, though I do want to get back to the backlog of book reviews...)

Tie a Camera to the Cat’s Neck...

This cool site describes how a guy attached a camera to his cat’s neck, so that on the cat’s return he could see what the cat had been up to. One comment in the attached guestbook does point out that

All the CatCam shows is where a cat goes when he’s trying to get something off his neck.

but reading about the process of getting a camera onto a cat’s collar is interesting enough, let alone getting to look at some of the attached pictures.

Today’s link: from the NYT

An interesting article about industrialised game-playing: Chinese loot-farming in World of Warcraft.