Piet Hein

Directory

References

Discover

bat flying

Are Bats Really Blind?

Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

NBA Lakers Celtics Finals Kevin Garnett shooting.

10 Great Sports Rivalries

Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. August 28th 1963

Was Martin Luther King, Jr., a Republican or a Democrat?

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.

What’s the Difference Between Bison and Buffalo?

Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint

8 of the Largest Empires in History

Piet Hein

Danish mathematician

Learn about this topic in these articles:

development of mathematical games

In number game: Puzzles involving configurations
The game was created by Piet Hein in 1942 in Denmark, where it quickly became popular under the name of polygon. It was invented independently in the United States in 1948 by John Nash, and a few years later one version was marketed under the name of hex.
Read More

Soma Cubes

In Soma Cube
The Danish mathematician Piet Hein, also known for his invention of the mathematical games known as hex and tac tix, stumbled upon the fact that the seven Soma Cubes can be put together to form a larger cube containing 27 “unit” cubes. He patented his idea for the…
Read More