Researchers led by MIT professor Daniel Nocera have produced something they’re calling an “artificial leaf”: Like living leaves, the device can turn the energy of sunlight directly into a chemical fuel that can be stored and used later as an energy source.（ http://web.mit.edu/newsoffice/20 ...
3000 BC The Mesopotamians of that era used rock oil in architectural adhesives, ship caulks, medicines, and roads. 2000 BC The Chinese refined crude oil for use in lighting and heating. 600–700 AD ...
An airplane’s digital flight-data recorder, or “black box,” holds massive amounts of data, documenting the performance of engines, cockpit controls, hydraulic equipment and GPS systems, typically at regular one-second intervals throughout a flight. Inspectors use such data to reconstruct the fin ...
Source: U.S. Energy Information Administration, International Energy Statistics . Note: Latest data available for the U.S. are 2009, international data are 2008. Coal reserves are relatively stable from year to year. Download CSV Data The United States le ...
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