INDEX

Highlights from Harper's Index
June 2007

[Interested in a career in print media?]

Percentage change since 1990 in worldwide demand for newsprint: +18
Percentage change in North America: -26
Minimum number of different books sold in the U.S. last year, as tracked by Nielson BookScan: 1,446,000
Number of these that sold fewer than 99 copies: 1,123,000
Number that sold more than 100,000: 483

[Mudslide]

Number of months that mud has been erupting from the ground in eastern Java, Indonesia: 10
Amount that is currently emerging per day, in gallons: 36,900,000

[Flying Objects]

Grant that NASA has given an Arizona astronomer to study how to block solar rays with a cloud of small spacecraft: $70,000
Number of two-foot-wide spacecraft he says would be required: 16,000,000,000,000


[Published in Harper's, June 2007. "Harper's Index" is a registered trademark.]