Pradeep Mutalik

Puzzle Columnist

insights puzzle

Seeing Time Through a Liquid Crystal Display

What insights can an LCD display give us about time’s arrow?

insights puzzle

Solution: ‘A Drunkard’s Walk in Manhattan’

City blocks help illustrate why walking randomly tends to take you away from your starting point.

insights puzzle

A Drunkard’s Walk in Manhattan

Why is it that when you walk randomly, the more you walk, the farther you get from your starting point?

insights puzzle

Solution: ‘Puzzles Inspired by Ramanujan’

What can the mathematical genius Srinivasa Ramanujan teach us about number theory through mathematical structures involving infinity?

insights puzzle

Three Puzzles Inspired by Ramanujan

Insights from the mathematical genius Srinivasa Ramanujan give us a number of ways to explore the infinite.

insights puzzle

Solution: ‘Is Infinity Real?’

Hilbert’s Hotel, an incredibly thin triangle and an elliptical pool table help us test the concept of infinity in the physical world.

insights puzzle

Is Infinity Real?

Three puzzles test whether the concept of infinity has purchase in the physical world.

Olena Shmahalo/Quanta Magazine
insights puzzle

Solution: ‘A Random Place at the Table’

Try these shortcuts for solving problems that seem to require a lengthy calculation.

Olena Shmahalo/Quanta Magazine
insights puzzle

A Random Place at the Table

Can you find a shortcut for solving problems that seem to require a lengthy calculation?