In a previous post I talked about shapes of constant width. I didn't know of any other coins besides the UK 50p and 20p that had the property of being the same width all the way round without being circular.
Well I was recently given this coin instead of 20p:
I recently saw Avatar in 3D and 'forgot' to hand my glasses back in at the end. I thought I knew how this technology worked so I was very surprised when I started doing some experiments.
I saw Avatar at a Vue cinema that recently had 3D installed and the way it works is quite different to the IMAX. Continue reading →
If you're a member of a lot of groups or have a lot of pending invites they probably generate a fair few messages in your facebook inbox that you don't really care about. The messages you DO care about tend to be the ones from an individual to you. Those are the ones you want to be notified about by email and not the rest.
At the moment facebook doesn't give you the option to be notified about one type of message but not the other. That means your email inbox can quickly fill up with facebook notifications that don't interest you.
One answer is to use email filters and in this post I'll explain how to set that up.
I write and perform sketches with my comedy partner Gamma Arrowsmith. They are often quite geeky. Here's an example:
And here's the Two Ronnies sketch that kicks its ass:
More Mould & Arrowsmith sketches here.
I bought these enormous ball bearings from this guy. They're fantastically heavy. When you whack them together you get a lovely sound. But for that brief moment and in that small space you also get really high temperatures and you can easily burn holes in paper. Here's a video:
Pick a number at random from the universe. Not just from inside your head. Open a page of the financial times or look up the size of a planet; convert you height to cubits or measure the weight of your favourite book. Something like that.
Don't actually do it, it's hypothetical. But ask yourself a question. What are the chances of that number starting with a 1? Continue reading →
Magenta is a peculiar colour. We use it all the time in printers along with cyan and yellow.
The weird thing is, you won't find magenta in a rainbow!
I've had a BlackBerry Bold 9000 for about 5 month and my obsession with keyboard shortcuts applies here too. Continue reading →
Freecycle is great but it can clog up your email. I think I've got the answer. Continue reading →
I know what you're thinking: what's the difference between a Venn diagram and an Euler diagram? Good question. The following diagram should clear things up:
Just to clarify, Venn diagrams have regions for all possible combinations of groups whether there are things in those regions or not. Continue reading →
