If your condition worsens, you may begin to have difficulty hiking. Scenarios like this are not uncommon, so it's essential that you understand the physiological effects of high altitude. Altitude is ...

Such high Knudsen number conditions give ... Depending on the altitude, complex shock structures may form downstream of the nozzle, extending the region in which these effects are important. Further ...

This implies that human habitation existed in the area during that period. The site is located more than 11,000 feet above sea level. This means that the group was living in high-altitude mountains.

In the years since then, balloon flight technology has evolved from cloth balloons and open baskets to polyethylene balloons and metal pressurized gondolas that allow for high-altitude atmospheric ...