New Horizons

For our greatest delight (at least mine), Andrew Lipson is a crazy guy. He's building many funny things in Lego. Like topological surfaces, Klein bottle, from the in/out-side ! Escher pictures, waterfall Or scultpures, like Rodin's thinker However, lego construction may be a way to counter-act the financial crisis which has the inconvenient to cut funding in research laboratory. For instance, Daniel strange (I don't invent anything !) built and programmed a crane that moves in a set path, raising and lowering the sample between beakers containing solutions using a Lego Mindstorms NXT kit. Neat.

Bertrand Russel used humour to show that whatever is logical is not necessary true. He was saying the following Do you pretend that if 2+2=5, then Bertrand Russel is the pope ? Suppose that 2+2=5 Let's substract 2 from each side, then 2=3 By symmetry we have 3=2 If you substract 1 on both sides, 2=1 Now the pope and I are two distinct people, since 2=1 the Pope and Russel are one.