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Dijkstra on the joy of mathematical elegance

The last digit of any integer n⁵ is n itself

An interesting relation

Lake Maracaibo in Venezuela is the most lightning-prone area on Earth. This region experiences lightning storms on average 297 days per year, totaling ~1.6 million lightning strikes annually.

Paul Dirac on the relationship between mathematics and physics

Fermat's Last Theorem is not applicable to matrices

Here's one of the first methods used by Hipparchus to determine the distance to the Moon in 129 BC

This is the largest left-truncatable prime: you always get a prime regardless of how many leading digits are omitted.

Born 339 years ago, Gabriel Fahrenheit invented the mercury thermometer and created the first truly reliable temperature scale that could be used anywhere in the world. Before Fahrenheit, thermometers were inconsistent: they used alcohol and weren’t properly sealed, making

This equation uses each of the digits 1 to 9 only once

An example of high precision fraud: this is correct to at least half a billion digits.

Probability of returning to the origin in a random walk: 1D → P=1 2D → P=1 3D → P=0.34 Large D → P=1/2D

Peter Higgs, the physicist who discovered the theoretical mechanism explaining the origin of mass in the universe, was born exactly 96 years ago today. "Nobody else took what I was doing seriously, so nobody would want to work with me. I was thought to be a bit eccentric and

Solar System a perspective from the Earth. These diagrams show the paths traced by Mercury, Venus, Mars, Jupiter and Saturn as seen from Earth.

Évariste Galois died exactly 193 years ago at age 20 from wounds suffered in a duel. At 17, Galois was able to determine a necessary and sufficient condition for a polynomial to be solvable by radicals, thereby solving a problem standing for 350 years.

From 1947 to 1984, Hisako Koyama, a self-taught Japanese solar observer, documented over 8,000 sunspot groups using the same telescope and method for nearly 40 years. In 2014, her sketches became the calibration backbone for a 400-year reconstruction of sunspot activity,