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The micrometre (SI symbol: μm) is a unit of length in the metric system equal to 10 −6 metres ( 1 / 1 000 000 m = 0. 000 001 m). To help compare different orders of magnitude , this section lists some items with lengths between 10 −6 and 10 −5 m (between 1 and 10 micrometers , or μm).
Peak XV (measured in feet) was calculated to be exactly 29,000 ft (8,839.2 m) high, but was publicly declared to be 29,002 ft (8,839.8 m) in order to avoid the impression that an exact height of 29,000 feet (8,839.2 m) was nothing more than a rounded estimate. [31]
Denali has a summit elevation of 20,310 feet (6,190 m) above sea level, making it the highest peak in North America and the northernmost mountain above 19,685 feet (6,000 m) elevation in the world. [1] Measured from base to peak at some 18,000 ft (5,500 m), it is among the largest mountains situated entirely above sea level.
An American football field, including both end zones, is 360 by 160 ft (120.0 by 53.3 yd; 109.7 by 48.8 m), or 57,600 square feet (5,350 m 2) (0.535 hectares or 1.32 acres). A Canadian football field is 65 yards (59 m) wide and 110 yards (100 m) long with end zones adding a combined 40 yards (37 m) to the length, making it 87,750 square feet ...
Caesars Head is a mountain within Caesars Head State Park in northern Greenville County, South Carolina.The summit has an elevation of 3,215 feet (980 m). [1] The radio tower for TV station WYFF is nearby.
The total length of the Golden Gate Bridge from abutment to abutment is 8,981 feet (2,737 m). [56] The Golden Gate Bridge's clearance above high water averages 220 feet (67 m) while its towers, at 746 feet (227 m) above the water, [56] were the world's tallest on a suspension bridge until 1993 when it was surpassed by the Mezcala Bridge, in Mexico.
Visibility minimums of 1 ⁄ 2 mile (0.80 km) (runway visual range of 2,400 feet (730 m)) are possible with a CAT I ILS approach supported by a 1,400-to-3,000-foot-long (430 to 910 m) ALS, and 3 ⁄ 8 mile (600 m) visibility 1,800-foot (550 m) visual range is possible if the runway has high-intensity edge lights, touchdown zone and centerline ...
The Burj Khalifa [a] (known as the Burj Dubai prior to its inauguration) is a skyscraper in Dubai, United Arab Emirates and the world's tallest structure.With a total height of 829.8 m (2,722 ft, or just over half a mile) and a roof height (excluding antenna, but including a 242.6 m spire) [2] of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since ...