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How big is 497.1 thousands of circular mills?

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 It's about as big as a Dime. In other words, the size of a Dime is 1 times 497.1 thousands of circular mills. (United States ten-cent coin) (a.k.a. Roosevelt dime)The dime, in its current design since 1946, has a diameter of 17.91 mm (0.705 in) and an area of 497.1 thousands of circular mills. It's about nine-tenths as big as a Penny. In other words, 497.1 thousands of circular mills is 0.884 times the size of a Penny, and the size of a Penny is 1.13 times that amount. (United States one-cent coin) (a.k.a. Lincoln penny, a.k.a. Cent, a.k.a. One cent piece)The Lincoln penny, in its current design since 1909, has a diameter of 19.05 mm (0.75 in) and an area of 562 thousands of circular mills. It's about seven-tenths as big as a Nickel. In other words, 497.1 thousands of circular mills is 0.7129 times the size of a Nickel, and the size of a Nickel is 1.403 times that amount. (United States five-cent coin) (a.k.a. Jefferson nickel)The nickel, in its current design since 1938, has a diameter of 21.21 mm (0.835 in) and an area of 697.2 thousands of circular mills. It's about three-fifths as big as a Postage Stamp. In other words, the size of a Postage Stamp is 2 times 497.1 thousands of circular mills. (average; United States dimensions)A typical postage stamp measures an average of 800 thousands of circular mills. One of the most prized stamps among collectors is the US-issued "Inverted Jenny" stamp printed in 1918, which features an upside-down image of Curtiss JN-4 ("Jenny") airplane; a single stamp sold for \$977,500 at a 2007 auction. It's about half as big as a Quarter. In other words, 497.1 thousands of circular mills is 0.545 times the size of a Quarter, and the size of a Quarter is 1.835 times that amount. (United States quarter-dollar coin) (a.k.a. Quarter dollar, a.k.a. Washington quarter, a.k.a. two bits)The George Washington quarter, in circulation in various forms since 1932, has a diameter of 24.26 mm (0.955 in) and an area of 912.2 thousands of circular mills. It's about one-third as big as a Secure Digital (SD) card. In other words, the size of a Secure Digital (SD) card is 3 times 497.1 thousands of circular mills. A Secure Digital (SD) card measures 3.2 cm by 2.4 cm for a total area of 1,500 thousands of circular mills. SDXC Cards, the latest standard for the technology, will allow the cards to hold up to 2 terabytes of data. It's about three times as big as a Nailhead. In other words, 497.1 thousands of circular mills is 3.24 times the size of a Nailhead, and the size of a Nailhead is 0.3086 times that amount. (for 11-gauge wire nai) An 11-gauge nailhead measures 153.4 thousands of circular mills. Nails have been used since ancient times; archaeologists have discovered Ancient Egyptian nails that are over 5,000 years old.