Reinventing and Understanding the Circular Slide Rule with a Rubber Band


4

435

29 May 2024

Estimating Number of Species with Rarefaction Curves


2

342

30 January 2024

π = 4? π = ∞? The Puzzle of the Schwarz Lantern


0

185

29 December 2023

Improving on Archimedes: New Proofs of the Volume and Area of Sphere and Cylinder


0

194

27 November 2023

Markov Processes, Matrix Algebra, and Snakes and Ladders


0

176

4 November 2023

Understanding Gabriel’s Horn without Ever Touching Calculus


1

488

28 October 2023

The Las Vegas “Sphere” Is Really a Truncated Sphere—What’s Its Volume?


1

225

28 October 2023

What Is the Volume of an Antiprism?


0

214

21 October 2023

The Riemann Rearrangement Theorem


0

220

11 September 2023

Knot or Not? — The Tangled Topic of Knot Theory


1

252

4 September 2023

Visualising Logarithms and Hyperbolic Trigonometric Functions


1

228

8 August 2023

The Flying Mathematicians of World War I


0

285

14 July 2023

How Many Convex Polyhedra Can You Make by Folding and Gluing Regular Pentagons?


0

268

11 July 2023

“Elements of Programming” Now Available for Free


0

305

25 June 2023

Solving the Cubic Equation and the Discovery of Complex Numbers


3

679

18 June 2023

Turán’s Brick Factory Problem


0

270

5 June 2023

Practical Numbers


0

273

24 May 2023

How Do You Integrate x^x dx?


2

224

23 May 2023

Intersections and Tangents of Conic Section Curves


0

249

12 April 2023

An Aperiodic Monotile


1

1370

22 March 2023

Donald Knuth's 2022 Christmas Tree Lecture: “Twintrees, Baxter Permutations, and Floorplans”


0

507

6 January 2023

Can One Flat Net of Squares Fold into Two or More Different Cuboids?


0

308

13 December 2022

Making a Klein Bottle from Borosilicate Glass


0

338

25 November 2022

A Formula for the Nth Prime Number


2

912

10 October 2022

Solving a Maze by Random Diffusion


0

302

14 September 2022

The Skull Equation


0

426

27 August 2022

This Week’s Book Review – Fantastic Numbers and Where to Find Them


0

468

14 August 2022

Five FiveLetter Words with 25 Unique Letters


0

451

4 August 2022

Understanding Calculus as Speedometer and Odometer


0

331

18 July 2022

The 100 Prisoners Puzzle: A Combinatorial Conundrum


0

534

1 July 2022
