Captain Marvel was once upon a time in the 1940's a superhero more popular than Superman, though Superman is the obvious victor over time (and a long time at that). I don't know what Captain Marvel is ...

Wischnegradsky, J [Vyshnegradskii, I. A.] . Sur la theorie generale des regulateurs. In: Comptes Rendus de l'Académie des Sciences de Paris, Vol. 83, 1876, p.318-320, (translated here: On the General ...

These wonderful images of the aurora borealis occurs as plate 4 and a text illustration on page 113 in Amedee Guillemin (1826-1893) and edited by Silvanus P. Thompson (1851-1916), the lovely ...

Rare, scarce, interesting, and unusual books for sale, mostly in the history of physics, math, and technology. The bookstore site is part of a larger daily blog for the History of Holes, Dots, Lines, ...

Here's the lead on a short post I made a few years ago on a Dublin tour: I just came across these image that I made on a trip to Dublin some years ago. Carrying the bags for my wife, Patti Digh, who ...

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, conducted by David Brewster, Richard Taylor, Richard Phillips, and Robert Kane, volume XVIII, January-June 1841, and ...

I've scouted some interesting photographic images of women in sports from the fine New York Public Library Digital Collections (here). They're mostly from the 'twenties, though there are some earlier ...

Nicolas de Larmessin (1640-1725) was an enormously creative and productive artist, and in his way created a genre similar to the great and ancient Dance of Death/.Danse Macabre/Totentanz--though his ...

Elsewhere on this blog I've written a little about dictionaries and words--Sam Johnson, Ambrose Bierce, specialized dictionaries, canting dictionaries, dictionaries of vulgar and coarse language, ...

This is the second in a new series of posts on interesting, early applications of electricity, most of which are taken from the archives of the U.S. Patent Office. Be it known that I, Geoger. King, ...

A Daily History of Holes, Dots, Lines, Science, History, Math, Physics, Art, the Unintentional Absurd, Architecture, Maps, Data Visualization, Blank and Missing ...