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"https://thatsmaths.com/2021/07/15/all-numbers-great-and-small/", "published_at": "2021-07-15T08:16:34+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635446d316", "title": "Approximating the Circumference of an Ellipse", "url": "https://thatsmaths.com/2021/07/08/approximating-the-circumference-of-an-ellipse/", "published_at": "2021-07-08T08:11:57+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635483f489", "title": "Kalman Filters: from the Moon to the Motorway", "url": "https://thatsmaths.com/2021/07/01/kalman-filters-from-the-moon-to-the-motorway/", "published_at": "2021-07-01T08:58:29+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635533995a", "title": "Gauss Predicts the Orbit of Ceres", "url": "https://thatsmaths.com/2021/06/24/gauss-predicts-the-orbit-of-ceres/", "published_at": "2021-06-24T08:57:49+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc6355e669c7", "title": "Seeing beyond the Horizon", "url": "https://thatsmaths.com/2021/06/17/seeing-beyond-the-horizon/", "published_at": "2021-06-17T07:49:55+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc6356bf4bfd", "title": "Al Biruni and the Size of the Earth", "url": "https://thatsmaths.com/2021/06/10/al-biruni-and-the-size-of-the-earth/", "published_at": "2021-06-10T07:43:27+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc63572524ba", "title": "The Simple Arithmetic Triangle is full of Surprises", "url": "https://thatsmaths.com/2021/06/03/the-simple-arithmetic-triangle-is-full-of-surprises/", "published_at": "2021-06-03T08:02:44+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc63572e7a12", "title": "Hanoi Graphs and Sierpinski’s Triangle", "url": "https://thatsmaths.com/2021/05/27/hanoi-graphs-and-sierpinskis-triangle/", "published_at": "2021-05-27T08:29:37+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc63573d51a9", "title": "Multi-faceted aspects of Euclid’s Elements", "url": "https://thatsmaths.com/2021/05/20/multi-faceted-aspects-of-euclids-elements/", "published_at": "2021-05-20T07:47:18+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc6357f930c0", "title": "A Model for Elliptic Geometry", "url": "https://thatsmaths.com/2021/05/13/a-model-for-elliptic-geometry/", "published_at": "2021-05-13T07:14:41+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635875c2c0", "title": "Improving Weather Forecasts by Reducing Precision", "url": "https://thatsmaths.com/2021/05/06/improving-weather-forecasts-by-reducing-precision/", "published_at": "2021-05-06T08:11:40+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635918c1f8", "title": "Can You Believe Your Eyes?", "url": "https://thatsmaths.com/2021/04/29/can-you-believe-your-eyes/", "published_at": "2021-04-29T07:48:51+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635a0d4ffd", "title": "The Size of Things", "url": "https://thatsmaths.com/2021/04/22/the-size-of-things/", "published_at": "2021-04-22T08:25:51+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635a3f6375", "title": "Entropy and the Relentless Drift from Order to Chaos", "url": "https://thatsmaths.com/2021/04/15/entropy-and-the-relentless-drift-from-order-to-chaos/", "published_at": "2021-04-15T08:16:35+00:00" }, { "id": "01a0d3fa-bfdf-704d-b1fc-fc635aeb28e1", "title": "Circles, polygons and the Kepler-Bouwkamp constant", "url": "https://thatsmaths.com/2021/04/08/circles-polygons-and-the-kepler-bouwkamp-constant/", "published_at": "2021-04-08T07:26:12+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79d4eca5c", "title": "Was Space Weather the cause of the Titanic Disaster?", "url": "https://thatsmaths.com/2021/04/01/was-space-weather-the-cause-of-the-titanic-disaster/", "published_at": "2021-04-01T08:19:51+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79e00cdda", "title": "The Dimension of a Point that isn’t there", "url": "https://thatsmaths.com/2021/03/25/the-dimension-of-a-point-that-isnt-there/", "published_at": "2021-03-25T08:33:48+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79e0c88c5", "title": "Making the Best of Waiting in Line", "url": "https://thatsmaths.com/2021/03/18/making-the-best-of-waiting-in-line/", "published_at": "2021-03-18T08:48:54+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79e64383f", "title": "Differential Forms and Stokes’ Theorem", "url": "https://thatsmaths.com/2021/03/11/differential-forms-and-stokes-theorem/", "published_at": "2021-03-11T08:25:25+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79f3c9445", "title": "Goldbach’s Conjecture: if it’s Unprovable, it must be True", "url": "https://thatsmaths.com/2021/03/04/goldbachs-conjecture-if-its-unprovable-it-must-be-true/", "published_at": "2021-03-04T07:51:42+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c79fa3ee23", "title": "Mamikon’s Theorem and the area under a cycloid arch", "url": "https://thatsmaths.com/2021/02/25/mamikons-theorem-and-the-area-under-a-cycloid-arch/", "published_at": "2021-02-25T09:53:40+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a0919932", "title": "Machine Learning and Climate Change Prediction", "url": "https://thatsmaths.com/2021/02/18/machine-learning-and-climate-change-prediction/", "published_at": "2021-02-18T08:50:17+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a0a202d7", "title": "Apples and Lemons in a Doughnut", "url": "https://thatsmaths.com/2021/02/11/apples-and-lemons-in-a-doughnut/", "published_at": "2021-02-11T10:36:06+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a1925888", "title": "Complexity: are easily-checked problems also easily solved?", "url": "https://thatsmaths.com/2021/02/04/complexity-are-easily-checked-problems-also-easily-solved/", "published_at": "2021-02-04T08:40:28+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a19c386a", "title": "Euler’s Product: the Golden Key", "url": "https://thatsmaths.com/2021/01/28/eulers-product-the-golden-key/", "published_at": "2021-01-28T09:22:07+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a234e978", "title": "Euler: a mathematician without equal and an overall nice guy", "url": 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"https://thatsmaths.com/2020/12/24/arrangements-and-derangements/", "published_at": "2020-12-24T10:16:31+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a5b76702", "title": "On what Weekday is Christmas? Use the Doomsday Rule", "url": "https://thatsmaths.com/2020/12/17/on-what-weekday-is-christmas-use-the-doomsday-rule/", "published_at": "2020-12-17T09:12:36+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a60b580a", "title": "Will RH be Proved by a Physicist?", "url": "https://thatsmaths.com/2020/12/10/will-rh-be-proved-by-a-physicist/", "published_at": "2020-12-10T08:56:11+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a6227e52", "title": "Decorating Christmas Trees with the Four Colour Theorem", "url": "https://thatsmaths.com/2020/12/03/decorating-christmas-trees-with-the-four-colour-theorem/", "published_at": "2020-12-03T08:23:50+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a6cab7ec", "title": "Laczkovich Squares the Circle", "url": "https://thatsmaths.com/2020/11/26/laczkovich-squares-the-circle/", "published_at": "2020-11-26T07:40:47+00:00" }, { "id": "01a0d3fb-4ab8-727e-a4cb-34c7a77e7c57", "title": "Ireland’s Mapping Grid in Harmony with GPS", "url": "https://thatsmaths.com/2020/11/19/irelands-mapping-grid-in-harmony-with-gps/", "published_at": "2020-11-19T08:04:31+00:00" } ] posts Claim your blog

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2022

Finding the Area of a Field original ↗

13 Oct 2022

CND Functions: Curves that are Continuous but Nowhere Differentiable original ↗

6 Oct 2022

Topological Calculus: away with those nasty epsilons and deltas original ↗

29 Sept 2022

The 3-sphere: Extrinsic and Intrinsic Forms original ↗

22 Sept 2022

Making Sound Pictures to Identify Bird Songs original ↗

15 Sept 2022

Dynamic Equations for Weather and Climate original ↗

8 Sept 2022

Curl Curl Curl original ↗

1 Sept 2022

X+Y and the Special Triangle original ↗

25 Aug 2022

The Navigational Skills of the Marshall Islanders original ↗

18 Aug 2022

Space-Filling Curves, Part II: Computing the Limit Function original ↗

11 Aug 2022

Space-Filling Curves, Part I: “I see it, but I don’t believe it”original ↗

4 Aug 2022

Poincare’s Square and Unbounded Gomoku original ↗

28 Jul 2022

Fields Medals presented at IMC 2022 original ↗

21 Jul 2022

Goldbach’s Conjecture and Goldbach’s Variation original ↗

14 Jul 2022

The Size of Sets and the Length of Sets original ↗

7 Jul 2022

Can We Control the Weather?original ↗

30 Jun 2022

The Arithmetic Triangle is Analytical too original ↗

23 Jun 2022

ICM 2022 — Plans Disrupted but not Derailed original ↗

16 Jun 2022

Swingin’-Springin’-Twistin’-Motion original ↗

9 Jun 2022

Parity of the Real Numbers: Part I original ↗

2 Jun 2022

Fairy Lights on the Farey Tree original ↗

26 May 2022

Image Processing Emerges from the Shadows original ↗

19 May 2022

Parity and Partition of the Rational Numbers. Part II: Density of the Three Parity Classes original ↗

12 May 2022

Parity and Partition of the Rational Numbers. Part I: The Three Parity Classes original ↗

5 May 2022

A Finite but Unbounded Universe original ↗

28 Apr 2022

The Whole is Greater than the Part — Or is it?original ↗

21 Apr 2022

Following the Money around the Eurozone original ↗

14 Apr 2022

Mamikon’s Visual Calculus and Hamilton’s Hodograph original ↗

7 Apr 2022

Infinitesimals: vanishingly small but not quite zero original ↗

31 Mar 2022

The Chromatic Number of the Plane original ↗

24 Mar 2022

The Improbability Principle and the Seanad Election original ↗

17 Mar 2022

Hyperreals and Nonstandard Analysis original ↗

10 Mar 2022

A Prescient Vision of Modern Weather Forecasting original ↗

3 Mar 2022

Why Waffle when One Wordle Do?original ↗

24 Feb 2022

Sources and Scenes of Mathematical Inspiration original ↗

17 Feb 2022

Where is the Sun?original ↗

10 Feb 2022

Mathematical Equations are our Friends original ↗

3 Feb 2022

Gaussian Primes original ↗

27 Jan 2022

Letters to a German Princess: Euler’s Blockbuster Lives On original ↗

20 Jan 2022

Euler’s Journey to Saint Petersburg original ↗

13 Jan 2022

Some Characteristics of the Mathematical Psyche original ↗

6 Jan 2022

2021

De Branges’s Proof of the Bieberbach Conjecture original ↗

30 Dec 2021

Number Partitions: Euler’s Astonishing Insight original ↗

23 Dec 2021

Bernoulli’s Golden Theorem and the Law of Large Numbers original ↗

16 Dec 2021

Set Density: are even numbers more numerous than odd ones?original ↗

9 Dec 2021

Buffon’s Noodle and the Mathematics of Hillwalking original ↗

2 Dec 2021

Chiral and Achiral Knots original ↗

25 Nov 2021

Émilie Du Châtelet and the Conservation of Energy original ↗

18 Nov 2021

Cantor’s Theorem and the Unending Hierarchy of Infinities original ↗

11 Nov 2021

Topsy-turvy Maths: Proving Axioms from Theorems original ↗

4 Nov 2021

How to Write a Convincing Mathematical Paper original ↗

28 Oct 2021

Mathematical Scandals and Scoundrels original ↗

21 Oct 2021

The Square Root Spiral of Theodorus original ↗

14 Oct 2021

A Grand Unification of Mathematics original ↗

7 Oct 2021

The Spine of Pascal’s Triangle original ↗

30 Sept 2021

Embedding: Reconstructing Solutions from a Delay Map original ↗

23 Sept 2021

Earth System Models simulate the changing climate original ↗

16 Sept 2021

The Signum Function may be Continuous original ↗

9 Sept 2021

The Social Side of Mathematics original ↗

2 Sept 2021

Real Derivatives from Imaginary Increments original ↗

26 Aug 2021

Changing Views on the Age of the Earth original ↗

19 Aug 2021

Carnival of Mathematics original ↗

12 Aug 2021

Phantom traffic-jams are all too real original ↗

5 Aug 2021

Simple Models of Atmospheric Vortices original ↗

29 Jul 2021

Finding Fixed Points original ↗

22 Jul 2021

All Numbers Great and Small original ↗

15 Jul 2021

Approximating the Circumference of an Ellipse original ↗

8 Jul 2021

Kalman Filters: from the Moon to the Motorway original ↗

1 Jul 2021

Gauss Predicts the Orbit of Ceres original ↗

24 Jun 2021

Seeing beyond the Horizon original ↗

17 Jun 2021

Al Biruni and the Size of the Earth original ↗

10 Jun 2021

The Simple Arithmetic Triangle is full of Surprises original ↗

3 Jun 2021

Hanoi Graphs and Sierpinski’s Triangle original ↗

27 May 2021

Multi-faceted aspects of Euclid’s Elements original ↗

20 May 2021

A Model for Elliptic Geometry original ↗

13 May 2021

Improving Weather Forecasts by Reducing Precision original ↗

6 May 2021

Can You Believe Your Eyes?original ↗

29 Apr 2021

The Size of Things original ↗

22 Apr 2021

Entropy and the Relentless Drift from Order to Chaos original ↗

15 Apr 2021

Circles, polygons and the Kepler-Bouwkamp constant original ↗

8 Apr 2021

Was Space Weather the cause of the Titanic Disaster?original ↗

1 Apr 2021

The Dimension of a Point that isn’t there original ↗

25 Mar 2021

Making the Best of Waiting in Line original ↗

18 Mar 2021

Differential Forms and Stokes’ Theorem original ↗

11 Mar 2021

Goldbach’s Conjecture: if it’s Unprovable, it must be True original ↗

4 Mar 2021

Mamikon’s Theorem and the area under a cycloid arch original ↗

25 Feb 2021

Machine Learning and Climate Change Prediction original ↗

18 Feb 2021

Apples and Lemons in a Doughnut original ↗

11 Feb 2021

Complexity: are easily-checked problems also easily solved?original ↗

4 Feb 2021

Euler’s Product: the Golden Key original ↗

28 Jan 2021

Euler: a mathematician without equal and an overall nice guy original ↗

21 Jan 2021

The Basel Problem: Euler’s Bravura Performance original ↗

14 Jan 2021

We are living at the bottom of an ocean original ↗

7 Jan 2021

2020

Derangements and Continued Fractions for e original ↗

31 Dec 2020

Arrangements and Derangements original ↗

24 Dec 2020

On what Weekday is Christmas? Use the Doomsday Rule original ↗

17 Dec 2020

Will RH be Proved by a Physicist?original ↗

10 Dec 2020

Decorating Christmas Trees with the Four Colour Theorem original ↗

3 Dec 2020

Laczkovich Squares the Circle original ↗

26 Nov 2020

Ireland’s Mapping Grid in Harmony with GPS original ↗

19 Nov 2020