Edmund Hillary and the Three Poles Challenge
We all know of Sir Edmund Hillary of New Zealand as one of the first two to climb the world's...
Everest
No barriers life: Erik Weihenmayer
Erik Weihenmayer (b. 1968) is an American athlete, adventurer, activist and author who lost his vision when he was 14 years old. But his...
The mathematician who calculated the height of Mount Everest
Radhanath Sikdar (1813–1870) was an Indian mathematician who among many other things calculated the height of Peak XV in the...
