Annals of Improbable Research
SEPTEMBER | OCTOBER 2009 (volume 15, number 5)
Special HELMETS & LOST PLANETS Issue
Helmet Speeds You Up?
Solar System Vanishing?
The features marked with a star (*) are based entirely on material taken straight from standard research (and other Official and Therefore Always Correct) literature. Many of the other articles are genuine, too, but we don’t know which ones.
Special Section: Helmets and Lost Planets
Helmets Make You Bicycle Faster—Limited Lifetime of the Solar System *— POEM: “Horton Sees a Pluto”—
The Lazy Bureaucrat Problem*—
Improbable Research Reviews*
Improbable Research Review*—Improbable Medical Review*— May We Recommend*— Ptak: Tricycle as Outdoor Printing Press*— Boys Will Be Boys*— Soft Is Hard*— Icky Cutesy Research Review*—
News & Notes
AIR Vents (letters from our readers)
Puzzling Solutions— Teachers’ Guide
XKCD: — CARTOON: “Fashion”— Back Issues
HMO-NO News: Hearty Breathing!
On the Front Cover
A sea diving suit on exhibit at the Fjord & Bælt research center’s museum, in Kerteminde, Denmark, Painting by Nan Swift, inspired by a photo taken during the 2009 Ig Nobel tour of Denmark.
On the Back Cover
A passage from chapter 5 (“A Celestial World Discovered. or, Conjectures Concerning the Inhabitants, Plants, and Productions, of the World in the Planets... by Christopher Huygens”) of the book The Gallery of Nature and Art, volume 1, by the Reverend Edward Polehampton, R. Wilks publisher, London, 1815.