91av

Skip to content

Matthew Scroggs

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with 91av events and special offers.

Sign up

More from Matthew Scroggs

Explore the latest news, articles and features

91av. 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 #123: No repeats

22 April 2026

91av. 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 #122: Squares and cubes

15 April 2026

91av. 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 #121: Strike one

8 April 2026

91av. 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 #119: No two 2s

25 March 2026

91av. 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 #115: Triple flip

25 February 2026

Puzzles #50-52: Can you crack these festive mathematical puzzles?

Puzzles #50-52: Can you crack these festive mathematical puzzles?

Regulars