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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    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. ...

  3. Geologic time scale - Wikipedia

    en.wikipedia.org/wiki/Geologic_time_scale

    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 ...

  4. ACHD may spend $31M on a mile-and-a-half stretch of ... - AOL

    www.aol.com/achd-may-spend-31m-mile-100000158.html

    The first plan would cost taxpayers $16.7 million. The other two: $31 million. ... costs triple to quadruple what they were five years ago. “When (projects) cost more, it may take us longer to ...

  5. JD.com (JD) Q2 2024 Earnings Call Transcript - AOL

    www.aol.com/jd-com-jd-q2-2024-154515381.html

    In the first half of the year, we completed share buybacks totaling $3.3 billion, equivalent to 224 million ordinary shares or 112 million ADS, accounting for 7.1% of our total outstanding shares ...

  6. Geological history of oxygen - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_oxygen

    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 ...

  7. Will election jolt Miami-Dade police after nearly 60 years ...

    www.aol.com/election-jolt-miami-dade-police...

    Whoever wins will inherit a sheriff’s office that was dismantled almost 60 years ago, after a grand jury indicted then-Sheriff T.A. Buchanan for perjury and failure to report campaign contributions.

  8. History of Earth - Wikipedia

    en.wikipedia.org/wiki/History_of_Earth

    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.

  9. Are things really more expensive these days? Compare prices ...

    www.aol.com/news/things-really-more-expensive...

    According to research conducted by the AARP, inflation has averaged 4% the past 50 years. With the current inflation rate, things that cost a dollar 50 years ago would approximate cost $7.03 today ...