Â鶹´«Ã½

Alison Kiddle

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with Â鶹´«Ã½ events and special offers.

Sign up

More from Alison Kiddle

Explore the latest news, articles and features

Â鶹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

BrainTwister

BrainTwister #106: Indices behaving oddly

24 December 2025

BrainTwister #84: Wild ones

BrainTwister #84: Wild ones

Regulars

Â鶹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

BrainTwister

BrainTwister #84: Wild ones

30 July 2025

BrainTwister #81: Consecutive squares

BrainTwister #81: Consecutive squares

Regulars

Â鶹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

BrainTwister

BrainTwister #81: Consecutive squares

9 July 2025

BrainTwister #74: Triple digits

BrainTwister #74: Triple digits

Regulars

Â鶹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

BrainTwister

BrainTwister #74: Triple digits

21 May 2025

BrainTwister #55: Squares in squares

BrainTwister #55: Squares in squares

Regulars

BrainTwister #45: Square differences

BrainTwister #45: Square differences

Regulars

BrainTwister #19: Angular arrangements

BrainTwister #19: Angular arrangements

Regulars

Can you solve our festive feast of four logic puzzles?

Can you solve our festive feast of four logic puzzles?

Regulars

Â鶹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Puzzle #141: How fast will Sam drive to get his teeth drilled?

Regulars

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop