A Positive Sign

I’m always pleased to see this sign. It is at Heathrow, on the walk down the perpetually dingily lit underground corridors connecting the terminals, the tube, the extortion Heathrow express, and the parking lots.

For a start, I generally like the idea that the ground floor of a building (the one you walk onto off the street) is the “zeroth” floor. (I mean no disrespect to this splendid country I live in, that has largely chosen otherwise, although every now and again in older buildings you see it.) So it is just great to see […] Click to continue reading this post

Pause for a Pint of Guinness

Well, it was only yesterday that I was telling the physics 100 class all about Special Relativity (lots of incredulous looks…. lots of reassurances, including: “You’re confused? That’s ok! It is one of the greatest pieces of science of the 20th Century… It’s not supposed to be trivial….”), but it seems like an age ago, and very distant. That’s because I’m in Dublin today. (Pesky wormholes.)

Just for a few days.

Guinness will be involved, I imagine (yeah!), although it will not be the primary focus. (The pint in the photo to the right is from a previous trip.) [ … ] Click to continue reading this post