NPR

On 9/16/25, celebrate a date of mathematical beauty

Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.
Quanta Magazine

How the Square Root of 2 Became a Number

The ancient Greeks wanted to believe that the universe could be described in its entirety using only whole numbers and the ratios between them — fractions, or what we now call rational numbers. But ...
Stereogum

Ulrika Spacek – “Square Root Of None”

Last month Ulrika Spacek shared “Build A Box Then Break It,” the lead single to their upcoming studio album EXPO. Today the artsy, shoegazey English band are following up that song with “Square Root ...
Hackaday

Square Roots 1800s Style — No, The Other 1800s

[MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We don’t ...
Gizmodo

Using a DNA-Based ‘Computer,’ Scientists Get the Square Root of 900

Using a computer-like system made from engineered DNA, scientists have computed the square root of 900. Biologists have proposed using genetic material for performing computations since as early as ...