Struggling to solve today's sudoku? Is your tried and tested method hitting a brick wall and you feel like you are going around in circles? New research might make you feel a bit better: you might not necessarily be stuck... perhaps you are just in a patch of transient chaos on your way to the solution.
Tomorrow, 1st November 2012 at 4pm GMT, Plus will be part of a MOOC (massive open online course)! For an hour we will be talking about the beautiful subject of symmetry in a way that is accessible to everyone and there will be questions and answers too. This online talk is open to everyone and it's free.
Today is Ada Lovelace Day celebrating the work of women in mathematics, science, technology and engineering. To join in the celebrations we bring you a selection of our favourite female interviewees from the last 15 years.
The first ever National Biology Week is happening between October 13th and 19th 2012. It's organised by the Society of Biology and there'll be events around the country giving everyone the chance to learn about the second-most fascinating science (if you count maths as a science). But if you'd rather stay in and cuddle up with your laptop here are our favourite Plus articles on maths and biology.
The 2012 Nobel Prize for Physics has been awarded to Serge Haroche and David J. Wineland for ground-breaking work in quantum optics. By probing the world at the smallest scales they've shed light on some of the biggest mysteries of physics and paved the way for quantum computers and super accurate clocks.