Here's how to use the AstroRay on nesting balloons.  Photo courtesy of the Standford Historical Archive.

Photo courtesy of the Stanford Historical Archives.

Even a globe has magnetic poles.  A photo from the 1928 National Air Races, Los Angeles.

"Sunbathers stay below this row."  Photo courtesy of the Stanford Historical Photograph Collection.

"Bed can be anywhere or nowhere" (John Gore, Mary Maxse, 1870-1944, 1946).  Our photo is from the Newport Naval Training Station, Rhode Island, 1917.

Here's a Portuguese sand castle courtesy of a double exposure, as scanned by the Biblioteca de Arte / Art Library Fundação Calouste Gulbenkian.

"The bigger the horn the better in most cases" (Gregory L. Hardin, Outstanding Sound Systems, 2008).  Our photo is of the U.S. Naval Training Camp, Seattle, Washington, circa 1918.

Foley's Bridge, Tollymore, c. 1870, scanned by the National Library of Ireland.

You've heard that a person has a light side and a shadow side.  However, "you must remember that you have two light sides instead of just one" (Popular Science, Sept. 1941).  Our photographic proof is from a 1939 yearbook scanned by Miami University Libraries.

"The space in the forehead is a doorway for thoughts" (Swahilya Shambhavi).  Our photo is as scanned by the Costică Acsinte archive.

"Truth in meats"?  What does truth have to do with meat?  We find the answer in the Upanisads of the Veda: "Where has the truth its location?  In the heart."  Our photo depicts an exhibit sponsored by the Oregon Cattle & Horse Raisers Association, c. 1940.

Two plates stuck together, from the Australian National Maritime Museum’s William Hall collection.

From Psychological Monographs, 1921.

Brockton Fair, 1933.

Here's the Queen of the 25 of Spades, c. 1905, scanned by the National Library of Ireland.

"Instead of construing these five as distinct selves, I take them to be five aspects of the self, forming the multitudinous self" (Serife Tekin, "The Missing Self in Hacking's Looping Effects," Classifying Psychopathology: Mental Kinds and Natural Kinds, 2014).

Here's the acclaimed lawyer Clarence Darrow (left) and someone not acclaimed (right), photographed by Leslie Jones (as scanned by the Boston Public Library).

The great secret of weathervanes is that they alter the direction of the wind they measure (as per the "observer effect" of physics).  Here are two weathervanes with conflicting reports, as photographed by Leslie Jones, date uncertain.  And then here's another photo of disagreeing weathervanes, not that you didn't believe us.  Plus, it's not just weathervanes: flags also flap according to conflicting winds (photo our own).