Peter Lynch (@thatsmaths) profile picture

Peter Lynch

@thatsmaths

Mathematics is Beautiful, Useful and Fun!

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thatsmaths.com
Joined August 2012
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Photo by Peter Lynch (@thatsmaths)Photo by Peter Lynch (@thatsmaths)Photo by Peter Lynch (@thatsmaths)Photo by Peter Lynch (@thatsmaths)Photo by Peter Lynch (@thatsmaths)Photo by Peter Lynch (@thatsmaths)
The Hindu-Arabic Numerals: coming from India to Europe via Baghdad during the Islamic Golden Age, they are a blessing for Modern Civilisation. thatsmaths.com/2025/11/20/th… via @thatsmaths
The Hindu-Arabic Numerals: a Blessing for Modern Civilisation

The Hindu-Arabic Numerals: a Blessing for Modern Civilisation

Directly opposite the RDS in Dublin, on the site of the former AIB headquarters, stand two impressive new office blocks separated by a plaza, Fibonacci Place. Leonardo Bonacci — known as Fibonacci,…

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Music and Maths are Inextricably Intertwined: the Tonnetz, a beautiful geometric depiction of harmony and a cool instrument. thatsmaths.com/2025/10/16/mu… via @thatsmaths
Music and Maths are Inextricably Intertwined.

Music and Maths are Inextricably Intertwined.

A crucial link between mathematics and music is nicely illustrated by the Tonnetz, a geometric diagram representing the harmonic relationships between the notes of the musical scale. An early versi…

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John von Neumann: Genius in Pure and Applied Maths, Computer Wizard and AI Visionary. thatsmaths.com/2025/09/18/jo… via @thatsmaths
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Finding a Horseshoe on the Beaches of Rio: Steve Smale's discovery stimulated the development of chaos theory. thatsmaths.com/2025/08/21/fi… via @thatsmaths
Finding a Horseshoe on the Beaches of Rio

Finding a Horseshoe on the Beaches of Rio

In 1966, American mathematician Steve Smale was awarded a Fields Medal, a kind of Nobel Prize for mathematics. At a press conference at the International Congress of Mathematicians in Moscow, Smale…

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Going for Gold: Henri Poincaré wins King Oscar's medal prize for his amazing work on Solar System Stability. thatsmaths.com/2025/07/17/go… via @thatsmaths
Going for Gold: Henri Poincaré and Solar System Stability

Going for Gold: Henri Poincaré and Solar System Stability

In his classical textbook on mechanics, Edmund Whittaker described the three-body problem as “the most celebrated of all dynamical problems”. From 1906 to 1912, Whittaker was Andrews Professor at T…

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The Future of Physics may be Surreal: Could surreal numbers shape the theory of quantum gravity? thatsmaths.com/2025/06/19/th… via @thatsmaths
The Future of Physics may be Surreal

The Future of Physics may be Surreal

Imagine the Earth were to shrink to the size of a marble. We might be in trouble, but the planet would continue its smooth course around the Sun while the Moon would maintain its orbit, circling Ea…

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The James Webb Telescope: taking the Long View of the Universe from Lagrange Point L2 thatsmaths.com/2025/05/15/th… via @thatsmaths
The James Webb Telescope: Viewing the Universe from Lagrange Point L2

The James Webb Telescope: Viewing the Universe from Lagrange Point L2

There are five sweet spots where a spacecraft can keep pace with Earth as both orbit the Sun. They are called the Lagrange points, after Joseph-Louis Lagrange, the brilliant Italian and naturalized…

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Euler's Identity: the Most Beautiful Equation in Mathematics appears in the visitor's book of the James Joyce Tower & Museum thatsmaths.com/2025/04/17/eu… via @thatsmaths
Euler’s Identity: the Most Beautiful Equation in Mathematics

Euler’s Identity: the Most Beautiful Equation in Mathematics

A recent entry in the visitor’s book of the James Joyce Tower & Museum in Sandycove, Dublin perplexed the Friends of Joyce’s Tower, the volunteers who run the museum. The entry, reproduced as t…

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Vernal Equinox marks the Emergence of Spring. thatsmaths.com/2025/03/20/th… via @thatsmaths
The Emergence of Spring

The Emergence of Spring

At 9.01AM today, the Sun crosses the Earth’s equator, marking the vernal equinox, the date when the direction of sunrise is due east and sunset due west. The Earth’s axis is at right angles to the …

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Quantum Physics, a Century Old: 100 years ago, Heisenberg spend 10 days on Helgoland, and made a breakthrough in "Matrix Mechanics". thatsmaths.com/2025/02/20/qu… via @thatsmaths
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Surprising Discoveries in the Family Tree of Mathematics: 1000 years of history. thatsmaths.com/2025/01/16/su… via @thatsmaths
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Squaring the Circle can be Fun. Happy Christmas. thatsmaths.com/2024/12/19/th… via @thatsmaths
The Surprising Utility of Square Wheels

The Surprising Utility of Square Wheels

The London Eye, a vast observation wheel with a diameter of 120 metres, on the south bank of the River Thames, opened in 2000. Resembling an enormous bicycle wheel, it has 32 passenger capsules, ea…

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Fermi Resonance amplifies the warming effect of CO2: is this resonance a coincidence, or is there some subtle quantum reason? thatsmaths.com/2024/11/28/fe… via @thatsmaths
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Another Record-busting Prime Number in the Never-ending Quest for Enormous Primes. thatsmaths.com/2024/11/21/th… via @thatsmaths
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Weather Forecasts have greatly improved and, with AI are set to get even better. thatsmaths.com/2024/10/17/jo… via @thatsmaths
Joining Forces to Improve Weather Forecasts

Joining Forces to Improve Weather Forecasts

Since 1950, there has been a quiet but steady revolution in meteorology, and especially in numerical weather prediction (NWP). The growth in accuracy, range and scope of weather forecasts over the …

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Hamilton’s Dynamics: New scientific theories often use mathematical methods developed decades earlier. thatsmaths.com/2024/09/19/ha… via @thatsmaths
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A recent major advance in the unification of mathematics: proof of the Geometric Langlands Conjecture. thatsmaths.com/2024/08/15/pr… via @thatsmaths
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The Doppler Effect: A simple effect with numerous valuable applications. thatsmaths.com/2024/07/18/th… via @thatsmaths
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Infinity: “What is truly infinite may just be the abyss of our ignorance.” thatsmaths.com/2024/06/20/to… via @thatsmaths
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Mathematical Fun and Games at Maison Poincaré, a mathematical museum at IHP in Paris. thatsmaths.com/2024/05/16/ma… via @thatsmaths
Mathematical Fun and Games at Maison Poincaré

Mathematical Fun and Games at Maison Poincaré

This article comes from the Institut Henri-Poincaré (IHP), part of Sorbonne University, in the Latin Quarter of Paris. IHP has no permanent researchers but serves as a venue for mathematical collab…

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