The American Recovery and Reinvestment Act of 2009, otherwise known as the Stimulus, provides nearly $800 billion to revive the US economy. At 407 pages, the act itself is huge. To get a visual overview of where all the money will go, visit Stimulus Spending Programs, an interactive graphic created by the Hive Group, an information technology consulting firm.
Milton Abramowitz and Irene Stegun’s Handbook of Mathematical Functions made its debut in 1964 and has been serving physicists and other scientists ever since. As a US government publication, the book has always been in the public domain. Google has scanned the text and made it freely available. In case you’re wondering, the image shows Γ(z).
The Orange County Center for Contemporary Art in Santa Ana, California, recently put on The Art of Imaging , an exhibition of works that use medical images as main components. MRI, ultrasound, and other imaging modalities were represented at the show, which you can still sample at the exhibition’s website.
More about the Authors
Charles Day.
American Center for Physics, One Physics Ellipse, College Park, Maryland 20740-3842, US
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Despite the tumultuous history of the near-Earth object’s parent body, water may have been preserved in the asteroid for about a billion years.
October 08, 2025 08:50 PM
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Physics Today - The Week in Physics
The Week in Physics" is likely a reference to the regular updates or summaries of new physics research, such as those found in publications like Physics Today from AIP Publishing or on news aggregators like Phys.org.