Put Mt. Everest (28 deg North) at the latitude of Mt. McKinley (63 deg North) in the United States and it is likely that no climber would ever have been able to reach the summit breathing the ...

It explains the composition of the atmosphere, including key gases like nitrogen, oxygen, and carbon dioxide, and illustrates how atmospheric pressure varies with altitude.

The successful ascent of Everest without supplementary oxygen is one of the great sagas of the 20th century. In addition to being a triumph of the human spirit, it raises some of the most ...

The movement and space between particles in a fluid affects the amount of pressure the fluid exerts. This means that the pressure in a fluid changes depending on its height, depth and temperature.

During a recent trip to Bhutan, [electronut] wished for a device that would show the temperature and altitude at the various places he visited in the Kingdom. Back home after his trip, he built ...