Polygons appear in rock formations, most commonly as the flat facets of crystals, where the angles between the sides depend on the type of mineral from which the crystal is made.those who faced death a hero
- Janusz Korczak (Wikipedia)
Janusz Korczak, the pen name of Henryk Goldszmit (22 July 1878 or 1879 – 7 August 1942), was a Polish Jewish pediatrician, educator, children’s author and pedagogue known as Pan Doktor (“Mr. Doctor”) or Stary Doktor (“Old Doctor”). He was an early children’s rights advocate, in 1919 drafting a children’s constitution. ¶ After spending many years working as a principal of an orphanage in Warsaw, he refused sanctuary repeatedly and stayed with his orphans when the entire population of the institution was sent from the ghetto to the Treblinka extermination camp during the Grossaktion Warschau of 1942.