…the hypothetical point in time when the global production of oil reaches its maximum rate, after which production will gradually decline…
…measured between the greatest peaks of a periodically varying quantity…
…a mountain in south central Sri Lanka, rising to 2,243 m (7,360 ft). A rock near the top bears a depression resembling a footprint, which is the focus of religious pilgrimages…
…a peak in the Black Hills of southwestern South Dakota, 7,242 feet (2,209 m) tall, the highest in the US east of the Rocky Mountains…
…a mountain in the Front Range of the southern Rocky Mountains, near Colorado Springs in Colorado, 14,110 feet (4,300 m) high, named for Zebulon Pike, Zebulon…
…a hilly area in Derbyshire, at the southern end of the Pennines, rising to 636 m (2,088 ft) at Kinder Scout…
…a peak in the Sangre de Cristo Mountains, northeast of Taos, the highest peak in New Mexico at 13,161 feet (4,011 m)…
…one of the principal peaks in the Pamir Mountains of Tajikistan, rising to 7,495 m (24,590 ft). It was the highest mountain in the Soviet Union…
…a calibrated instrument used to measure lung capacity in monitoring breathing disorders such as asthma…
