You will need
- a long strip of paper a few cm wide, a printed template from here, or your own template from here.
- a protractor or set square
1. Fold over the left end of the strip to make an angle of 120°.
Maths is a fickle world. Stay à la mode with our guide to the latest trends.
Show us your coolest stuff and let us chat to you later.
You lost everyone after that entire page of algebra, mate.
These puzzles appeared in Issue 03 of the magazine.
Have you ever reached the start of a traffic jam fearing the worst—road works, an accident, a fallen tree—to later discover no clear reason for the delay? Then you fell victim to one of the strangest traffic phenomena: the phantom traffic jam. This ghostly foe may seem supernatural, but can actually be predicted through the theory of shockwaves.
Moonlighting agony uncle Professor Dirichlet answers your personal problems. Want the Prof’s help? Send your problems to firstname.lastname@example.org.
A new colleague at work is deaf, and I’m trying to learn BSL to communicate with her. I have commenced some classes at the local community college, but every time I converse with my hands, she cocks her head to the side.
Is this a social cue I’m missing?
— All thumbs, Royal Leamington Spa
Our original prize crossnumber is featured on pages 44 and 45 of Issue 03.
Clarification: In 39D, the integers should be positive and distinct.
Clarification: The answer to 40A is not 5362, as some websites claim. 5362 is the number of positions that could face you after 3 moves, not the number of ways to play 3 moves.
This issue, Top Ten features the top ten calculators! Then vote here on the top ten colours of chalk for Issue 04!
At 10, it’s what we’ve all been searching for: the Google calculator.
Down two places to 9 this week, it’s the Little Professor and his very trendy sideburns.