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  2. String girdling Earth - Wikipedia

    en.wikipedia.org/wiki/String_girdling_Earth

    For example, each additional 1000 feet adds 2 × π × 1000 ≈ 6,283 feet (1.0340 nautical miles) around the whole Earth. In other words, each kilometre altitude increases the distance by 15.7 cm, per kilometre travelled. The higher efficiency far exceeds the negligible distance added. [citation needed]

  3. Quandary Peak - Wikipedia

    en.wikipedia.org/wiki/Quandary_Peak

    It lies in Summit County and within the White River National Forest about 6 miles (10 km) south-southwest of the town of Breckenridge. The standard route up Quandary Peak is a trail hike ( class 1 ), starting from a trailhead about 1 mile (1.6 km) north of Hoosier Pass and climbing the east ridge.

  4. Square mile - Wikipedia

    en.wikipedia.org/wiki/Square_mile

    Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 miles × 20 miles) has an area of 400 sq mi; a rectangle of measuring 10 miles × 40 miles also has an area of 400 sq mi, but is not 20 miles square.

  5. List of countries by length of coastline - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Using an interval of 30 mi (50 km), the length is about 2,100 mi (3,400 km). The coastline paradox states that a coastline does not have a well-defined length. Measurements of the length of a coastline behave like a fractal , being different at different scale intervals (distance between points on the coastline at which measurements are taken).

  6. Charleston, South Carolina - Wikipedia

    en.wikipedia.org/wiki/Charleston,_South_Carolina

    The present city has a total area of 135.51 square miles (351.0 km 2), of which 115.03 square miles (297.9 km 2) is land and 20.48 square miles (53.0 km 2) (15.11%) is water. [4] North Charleston blocks any expansion up the peninsula, and Mount Pleasant occupies the land directly east of the Cooper River.

  7. List of asteroid close approaches to Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_asteroid_close...

    For comparison, since a satellite in a geostationary orbit has an altitude of about 36,000 km (22,000 mi), then its geocentric distance is 0.11 LD (approximately three times the width of the Earth). The table shows that the years 2016 and 2017 had a total of 13 such close encounters that are known.

  8. Geography of Mongolia - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Mongolia

    Mongolia is a landlocked country in East Asia, located between China and Russia.The terrain is one of mountains and rolling plateaus, with a high degree of relief. [2] The total land area of Mongolia is 1,564,116 square kilometres. [3]

  9. Yellowstone hotspot - Wikipedia

    en.wikipedia.org/wiki/Yellowstone_hotspot

    The youngest of the hotspot calderas, the Yellowstone Caldera, formed 640,000 years ago and is about 34 miles (55 km) by 45 miles (72 km) wide. Non-explosive eruptions of lava and less-violent explosive eruptions have occurred in and near the Yellowstone Caldera since the last super eruption.