Natan Sharansky and Technology. As a child, he was a chess prodigy. He performed in simultaneous and blindfold displays, usually against adults. At the age of 15, he won the championship in his native Donetsk. When incarcerated in solitary confinement, he claims to have maintained his sanity by playing chess against himself in his mind. Sharansky beat the world chess champion Garry Kasparov in a simultaneous exhibition in Israel in 1996. He took his current Hebrew name in 1986, when he was freed from Soviet incarceration as part of a prisoner exchange and received an Israeli passport with his new name. Natan
Natan Shalem Natan Shalem Natan Shalem (October 10, 1897 - 1959) was an Israeli geographer, geologist and researcher. Shalem was born in Thessaloniki to a traditional Jewish family. Growing up Shalem studied in various Jewish educational institutes. In 1914 Shalem immigrated to Ottoman Palestine. During the First World War Shalem began to teach in the moshava Sejera. In 1919 Shalem went to study geology in Florence where he obtained his doctorate in 1924. After getting his doctorate Shalem returned to Palestine and settled in Jerusalem, where he worked as a teacher for geography, chemistry and physics at the Gymnasia Rehavia. Within this