Abakcus

1/3 + 1/9 + 1/27 + ··· = 1/2. The proof is in the picture. No words needed.

Nikolay Bogdanov-Belsky's famous painting, "Mental Arithmetic. In the Public School of S. Rachinsky." The math problem the boys are trying to solve on the board is (10²+11²+12²+13²+14²)/365.

This is the most satisfying way to understand binary numbers.

The longer you look, the more satisfying it gets.

e, π and i — the three most famous constants in mathematics. Combine them as exponents. Take the absolute value. They all land on the unit circle.

Sunflowers, honeycombs, river networks, string art — all just math wearing a disguise. Beautiful poster series by Megan Emma Moree.

Explanation of Pi by Mr.Finch on Person of Interest! #PiDay

If you have a pizza with radius "z" and thickness "a", its volume is Pi(z•z)a. 😋 Happy Pi Day!

Pokemon as described by physical laws. 😍

A Periodic Table of which country produces the most of each element. [bityl.co/OCXB]

The Fibonacci elephant. [bityl.co/L4M2]

A beautiful diagram of abstract algebra and other stuff! 👊 [bit.ly/3vPK46u]

A simple but brilliant illusion by Yves Lappert.

Rene Magritte’s The Blank Signature. A horse, a forest, and a paradox. This painting breaks your brain—and then rebuilds it.

Only straight lines. The pure beauty of mathematics. 😲

126 ways to sew on a four-hole button.

Geometric construction of the trigonometric functions.

Golden ratio.❤️

The beauty of math book covers from @doverpubs. 😍