Henryk Zygalski

Polish mathematician and cryptologist.

Born July 15th, 1908 in PoznaƄ.

Died August 30th, 1978 at 70 years old in Liss.

Occupations
cryptographer, mathematician
Wikipedia

Let children walk with Nature, let them see the beautiful blendings and communions of death and life, their joyous inseparable unity, as taught in woods and meadows, plains and mountains and streams of our blessed star, and they will learn that death is stingless indeed, and as beautiful as life. John Muir