altitude

The altitude and speed revealed she was cycling uphill and accelerating very slightly.

Hypersonic missiles fly at at least five times the speed of sound, in unpredictable paths at a low altitude that make them hard for radar to detect.

One person had died from hypothermia and altitude sickness, but the others were reportedly in good condition.

The main reason for his unusual commute was to get back to high altitude, which can boost the blood’s oxygen-carrying capacity.

Girmay fretted that the worlds course, with its nearly 18,000 feet of climbing, was too much—that African riders, especially ones unused to Kigali’s mile-high altitude, would have trouble finishing.