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How long is 520.97 feet?

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It's about one-seven-hundredth as long as The English Channel.
In other words, 520.97 feet is 0.00148 times the length of The English Channel, and the length of The English Channel is 676 times that amount.
(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 351,000 feet, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.
It's about one-seven-hundred-fiftieth as long as The 405.
In other words, 520.97 feet is 0.0013626 times the length of The 405, and the length of The 405 is 733.89 times that amount.
(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
Running from Irvine to San Fernando, The 405 runs a total of 382,350 feet. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.
It's about one-seven-hundred-fiftieth as long as Hadrian's Wall.
In other words, the length of Hadrian's Wall is 770 times 520.97 feet.
(a.k.a. Roman Wall, a.k.a. The Wall, a.k.a. Vallo di Adriano, a.k.a. Vallum Aelium, a.k.a. Severus' Wall) (from North Tyneside, Tyne and Wear, England, United Kingdom to Cumbria, North West England, United Kingdom)
Hadrian's Wall, which crossed England form the North Sea to the Irish Sea during the time of Roman rule, measures 390,000 feet (about 79 Roman miles). Roman soldiers — at one time up to 10,000 of them — only occupied Great Britain for about 246 years after the wall was built, after which time the local Brits began to take residence the wall's garrisons.
It's about one-three-thousandth as long as The Grand Canyon.
In other words, 520.97 feet is 0.000356 times the length of The Grand Canyon, and the length of The Grand Canyon is 2,810 times that amount.
(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 1,460,000 feet along the course of the Colorado River at its bottom. Having opened in early 2007, the Grand Canyon Skywalk allows tourists to stand on a horseshoe-shaped glass walkway 3,610 feet above the floor of Granite Gorge.
It's about 3,000 times as tall as a Golf Tee.
In other words, 520.97 feet is 2,900 times the height of a Golf Tee, and the height of a Golf Tee is 0.00034 times that amount.
The most common golf tee size and the length preferred for iron and most wood clubs is 0.18 feet tall. The tee did not come into common use until it was promoted by professional golfers Walter Hagen and Joe Kirkwood, as part of a marketing effort by the patent-holder of the well-known, "Reddy Tee."
It's about one-eight-thousand-five-hundredth as long as The Rhine.
In other words, the length of The Rhine is 8,330 times 520.97 feet.
(a.k.a. Rhein, a.k.a. Rijn, a.k.a. Rhin, a.k.a. Rain, a.k.a. Reno, a.k.a. Rhenus, a.k.a. Ryn) (from near Reichenau, Switzerland through Hoek van Holland, Rotterdam, Netherlands)
The Rhine river runs 4,330,000 feet in total length. The World War II Battle of Arnhem, as memorialized in the 1974 book and 1977 movie A Bridge Too Far, was the first of several attempts to capture key bridges across the Rhine, beginning with the Arnhem Bridge in the Netherlands.
It's about 10,000 times as long as an Aspirin.
In other words, 520.97 feet is 11,000 times the length of an Aspirin, and the length of an Aspirin is 0.000091 times that amount.
(for up & up aspirin, 325mg, regular strength tablets) (a.k.a. acetylsalicylic acid, a.k.a. ASA)
A single aspirin tablet measures 0.046 feet in diameter. One of the most common medicines in the world and a foundation of worldwide health systems, an estimated 40,000 metric tons of aspirin are consumed each year.