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Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...
Georgia O'Keeffe holds the record for the highest price paid for a painting by a woman. On November 20, 2014 at Sotheby's, the Crystal Bridges Museum of American Art bought her 1932 painting Jimson Weed/White Flower No. 1 for US$44.4 million (equivalent to US$57.2 million in 2023). [ 14][ 15] Among the listed top 89, only six are paintings by ...
The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [ 5] It chronologically organises strata, and subsequently time, by observing fundamental changes in stratigraphy that correspond to major geological or ...
The canyon was created by the Colorado River cutting a channel over millions of years, and is about 277 miles (446 km) long, ranges in width from 4 to 18 miles (6 to 29 km) and attains a depth of more than 1 mile (1.6 km). Nearly two billion years of the Earth's history have been exposed as the Colorado River and its tributaries cut through ...
Earth formed in this manner about 4.54 billion years ago (with an uncertainty of 1%) [25] [26] [4] and was largely completed within 10–20 million years. [27] In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier.
List of best-selling singles. 1942 10-inch 78 rpm release of the single "White Christmas" by Bing Crosby. 1997 7-inch 45 rpm release of "Candle in the Wind 1997"/"Something About the Way You Look Tonight", double A-side single by Elton John. This is a compendium of the best-selling music singles.
Oxygen began building up in the atmosphere at approximately 1.85 Ga. At current rates of primary production, today's concentration of oxygen could be produced by photosynthetic organisms in 2,000 years. [ 4] In the absence of plants, the rate of oxygen production by photosynthesis was slower in the Precambrian, and the concentrations of O 2 ...
In 2005, the Journal reported a readership profile of about 60 percent top management, an average income of $191,000, an average household net worth of $2.1 million, and an average age of 55. [ 21 ] In 2007, the Journal launched a worldwide expansion of its website to include major foreign-language editions.