Supplemental Research

Non-Fiction(er) Companion to the Weekly Guidebook pages

Code companion to simplify any math can be found on the History Survival Guide Github repo


So You’re Lost in Time: Determine When You Are – Proper Motion and Calculating Angular Distance

Dunn, Tony. Proper Motion Simulator,

Halley, Edmund. “Considerations on the Change of Latitudes of Some of the Principal Fixt Stars.” The Philosophical Transactions of the Royal Society of London, from Their Commencement in 1665 to the Year 1800, 1809, pp. 329–330.

“How to Calculate the Angular Distance Between Two Stars.” Astrometry and Phot Calculator,

Illingworth, Valerie. The Anchor Dictionary of Astronomy. Anchor Books, 1979.

“List of the Constellations.”,


So You’re Riding the Rails: Hobo Signs and Symbols – Full List of All Hobo PNGs

“Any Chalk Marks on Your Fence.” The Havre Herald, 15 Apr. 1908, p. 3,

Beard, Daniel Carter. The American Boys’ Book of Signs, Signals and Symbols. 1918.

“Boy Tramp.” The Stark County Democrat, 26 Feb. 1904, p. 3,

“Code of Hobo-Land.” Western Kansas World, 23 Apr. 1904, p. 6,

“Gate-Post Language.” Western Kansas World, 28 Jan. 1893, p. 2,

“Glad Hand or Marble Heart.” The Globe-Republican, 10 May 1895, p. 2,

Haskin, Frederic J. “Evening Star.” Answers to Question, 9 July 1931, p. 8,

“Hobo Sign Language Is Changed and Secret Marks Become Public Property.” El Paso Herald, 10 Aug. 1914, p. 12,

“Hobo Signs on Gate Posts.” The Guthrie Daily Leader, 25 Feb. 1902, p. 2,

“Hobo Signs.” Payette Enterprise, 20 June 1912, p. 2,

“Hoboes Have Secret Code: Lodge King Deciphers It.” The Seattle Star, 27 Nov. 1922, p. 2,

“Home News.” The County Paper, 1 Apr. 1881, p. 1,

“Inverted Pitchfork Is Sign Dreaded by Tramps.” The Washington Times, 29 July 1914, p. 9,

“Plodding Pierre’s Guidebook.” New-York Tribune, 8 Sept. 1921, p. 3,

“Remarkable Experience of a Business Man Disguised as a Tramp.” The Minneapolis Journal, 26 Nov. 1905, p. 49,

“Roundabout.” El Paso Daily Herald, 27 Sept. 1897, p. 4,

“Secret Code of Tramps.” The Inter-Mountain Farmer and Rachman, 2 Sept. 1902, p. 10,

“Signal Code of Trampdom.” The Kendrick Gazette, 4 June 1909, p. 3,

“Signs of the Hobo.” The Tacoma Times, 8 Mar. 1911, p. 5,

“Signs of Tramp World.” Dakota Farmers’ Leader, 13 Mar. 1908, p. 6,

“Signs of Tramps: How the Wanderers Mark Fences and Gate Posts.” Evening Star, 29 Sept. 1894, p. 16,

“Signs Used by Tramps.” New Ulm Review, 2 Aug. 1893, p. 5,

“‘The Following Signs Are Said to Be Tramp Signs.’” Juniata Sentinel and Republican, 1 Aug. 1873,

“The Tramp Problem.” Evening Star, 21 May 1905, p. 19,

“The Tramp Trust: A Million In It.” The Spokane Press, 13 Feb. 1910, p. 16,

“The Tramp’s Cipher.” Morris Tribune, 26 Mar. 1884, p. 4,

“The Tramp’s Signal Code.” The Great Falls Leader, 17 Jan. 1889, p. 2,

“Tramp Sign Writing.” The Washington Herald, 24 Apr. 1910, p. 6,

“Tramp Signs and Habits of Tramps.” Dodge City Times, 22 Nov. 1879, p. 5,

“Tramp Signs.” Brenham Weekly Banner, 25 Apr. 1879, p. 3,

“Tramps and Their Marks.” Morning Appeal, 13 Jan. 1882, p. 3,

“Tramps and Their Signs.” The Aegis & Intelligencer, 12 Sept. 1879, p. 1,

“Tramps’ Gatepost Signs.” Frostburg Mining Journal, 9 Aug. 1902, p. 4,

“Tramps Have Signs.” The Coalville Times, 29 Aug. 1902, p. 3,

“Tramps in Germany Have ‘Union’; Tip Off Their Brothers with Signs.” Pueblo Chieftain, 30 July 1921, p. 13,

“Tramps’ Signs.” The Great Falls Leader, 12 Feb. 1889, p. 2,

“What Tramps’ Signs Mean.” Richmond Times-Dispatch, 6 Dec. 1914, p. 54,


Folklore Survival Guide: How to Kill (or Cure) a Wendigo

“The Algonquin Legends of New England, or, Myths and Folk Lore of the Micmac, Passamaquoddy, and Penobscot Tribes.” The Algonquin Legends of New England, or, Myths and Folk Lore of the Micmac, Passamaquoddy, and Penobscot Tribes, by Charles Godfrey Leland, Houghton, Mifflin and Co., 1884, pp. 240–246.

Bird, Louis, and Tamara Robinson. “Our Voices—Cannibalism (Omushkego Oral History Project).” Omushkego Oral History Project,

Cooper, John M. “The Cree Witiko Psychosis.” Primitive Man, vol. 6, no. 1, 1933, pp. 20–24., doi:10.2307/3316222.

“Culture-Bound Syndromes.” Core Psychiatry E-Book, by Padraig Wright et al., Saunders Ltd., 2012, p. 356.

Guinard, Joseph E. “Witiko among the Tete-De-Boule.” Primitive Man, vol. 3, no. 3/4, 1930, pp. 69–71., doi:10.2307/3316416.

“Les Bourgeois De La Compagnie Du Nord-Ouest: Récits De Voyages, Lettres Et Rapports inédits Relatifs Au Nord-Ouest Canadien.” Les Bourgeois De La Compagnie Du Nord-Ouest: Récits De Voyages, Lettres Et Rapports inédits Relatifs Au Nord-Ouest Canadien, by L. R. Masson, Québec, Impr. Générale A. Coté Et Cie, 1889, pp. 249–250.

James R. Stevens, “ZHAUWUNO-GEEZHIGO-GAUBOW,” in Dictionary of Canadian Biography, vol. 13, University of Toronto/Université Laval, 2003–, accessed October 27, 2019,

Marano, Lou, et al. “Windigo Psychosis: The Anatomy of an Emic-Etic Confusion [and Comments and Reply].” Current Anthropology, vol. 23, no. 4, 1982, pp. 385–412., doi:10.1086/202868.

Rand, Silas, and Helen Webster. “Legends of the Micmacs.” Legends of the Micmacs, New York; London : Longmans, Green, 1884, pp. 196–197.

Rohrl, Vivian J. “The Cure and Feeding of Windigos: A Critique.” American Anthropologist, vol. 74, no. 1-2, 1972, pp. 242–244., doi:10.1525/aa.1972.74.1-2.02a01750.

Rohrl, Vivian J. “A Nutritional Factor in Windigo Psychosis.” American Anthropologist, vol. 72, no. 1, 1970, pp. 97–101., doi:10.1525/aa.1970.72.1.02a00120.

Turner, D. H. “Windigo Mythology and the Analysis of Cree Social Structure.” Anthropologica, vol. 19, no. 1, 1977, pp. 63–73., doi:10.2307/25604977.


So, Angles: Making a Protractor, as Simply as Possible

Blundeville, Thomas. Briefe Description of Universal Mappes and Cardes, 1589. Early English Books Online Text Creation Partnership, 2011.

Martin, George E. The Foundations of Geometry and the Non-Euclidean Plane. Springer, 2011.

Birkhoff, George D. “A Set of Postulates for Plane Geometry, Based on Scale and Protractor.” The Annals of Mathematics, vol. 33, no. 2, 1932, p. 329., doi:10.2307/1968336.


So, Pi: Pi to 4782ths Place

Bailey, David H., et al. “The Quest for Pi.” The Mathematical Intelligencer, vol. 19, no. 1, 15 June 1996, pp. 50–56., doi:10.1007/bf03024340.

Huberty, Michael D., et al. “100,000 Digits of Pi.” 100,000 Digits of Pi, 6 July 1997,

Rayman, Marc. “How Many Decimals of Pi Do We Really Need? – Edu News.” Jet Propulsion Laboratory, NASA, 17 Mar. 2016,


So, You’re Lost in Space:  How to Read the Pioneer Plaque – Pioneer Plaque PNG

Berendzen, Richard. Life Beyond Earth and the Mind of Man: a Symposium Held at Boston University on November 20,1972. NASA, Scientific and Technical Information Office, 1973.

Dunbar, Brian. “Pioneer 10 Spacecraft Sends Last Signal.” NASA, NASA, 25 Feb. 2003,

Dunbar, Brian. “Pioneer-10 and Pioneer-11.” NASA, NASA, 26 Mar. 2007,

“How to Read a Pulsar Map.” PBS, Public Broadcasting Service, 2017,

Howell, Elizabeth. “Pioneer 10: Greetings from Earth.”,, 18 Sept. 2012,

Johnston, Robert. “Reading the Pioneer/Voyager Pulsar Map.” Reading the Pioneer/Voyager Pulsar Map, 30 Oct. 2007,

Milano, Dan, et al. “Messages From Earth: The Story Behind the Pioneer 10 Plaque.” Ceros Originals, 21 May 2019,

MILLS, B. Pulsar Distances, Spiral Structure and the Interstellar Medium. Nature 224, 504–505 (1969).

“Pioneer F Plaque Location.” Internet Archive, 25 Feb. 1972,

“Pioneer F Plaque Symbology.” Internet Archive, 25 Feb. 1972,

“Pioneer Plaque.” The Planetary Society Blog,

Rosenthal, Jake. “The Pioneer Plaque: Science as a Universal Language.” The Planetary Society Blog,,

Sagan, Carl, et al. “A Message from Earth.” Science, vol. 175, no. 4024, 1972, pp. 881–884., doi:10.1126/science.175.4024.881.

Siegel, Ethan. “Voyager’s ‘Cosmic Map’ Of Earth’s Location Is Hopelessly Wrong.” Forbes, Forbes Magazine, 17 Aug. 2017,

So, You Need a Magnet: How To Build an Electromagnet

Ampère André-Marie. The Story of His Love Being the Journal and Early Correspondence of Andre-Marie Ampere with His Family Circle During the First Republic (1793-1804). Readex Microprint, 1976.

Banas, Timothy. “How to Calculate the Force of an Electromagnet.” Sciencing, 2 Mar. 2019,

Bellis, Mary. “William Sturgeon and the Invention of the Electromagnet.” ThoughtCo, ThoughtCo, 23 Feb. 2019,

“Electromagnetic Terms and Actions Explained by Experts.” Honolulu Star-Bulletin, 1916. Library of Congress,

Emerson, D.W. The Lodestone, from Plato to Kircher. 16 Jan. 2019,

“Explaining the Electro-Magnet.” Chariton Courier, 1911. Library of Congress,

Gugie, John. “How to Make Solenoid Magnets.” HomeSteady, 27 June 2019,

Helmenstine, Anne Marie. “The Relationship Between Electricity and Magnetism.” ThoughtCo, ThoughtCo, 9 Nov. 2018,

Henry, John. “John Henry to Bejmanin Silliman, Sr, on Electro-Magnetisms .” Received by Bejamin Silliman, Sr., 10 Dec. 1830. Smithsonian Institution Archive,

Henry, John. “John Henry to Bejmanin Silliman, Sr, on Electro-Magnetisms.” Received by Bejamin Silliman, Sr., To Bejamin Silliman, Sr., 15 Jan. 1831. Smithsonian Institution Archives,

Henry, John. “John Henry to Parker Cleaveland on Electromagnetism.” Received by Parker Cleaveland, To Parker Cleaveland, 8 May 1832. Smithsonian Institution Archives,

Henry, Joseph. “Joseph Henry’s Letter to John R. Henry (July 9, 1831).” Received by John R. Henry, 9 July 1831. Smithsonian Institution Archives,

Humanities, National Endowment for the. “Radio Primer.” News about Chronicling America RSS, News-Times Print. Co., 1922,

“Joseph Henry: A Life in Science.” Smithsonian Institution Archives, 20 Mar. 2012,

Marsh, James. “No I. PORTABLE ELECTRO-MAGNETIC APPARATUS.” Transactions of the Society, Instituted at London, for the Encouragement of Arts, Manufactures, and Commerce, vol. 41, 1823, pp. 47–52.,

Maxwell, James Clerk. Treatise on Electricity and Magnetism. Hansebook, 2016.

Mills, Allan A. The Lodestone: History, Physics, and Formation. Annals of Science, 2004.

Noorlander, Emiel. “How to Make a Solenoid Engine.” The Practical Engineer, The Practical Engineer, 31 Oct. 2019,

“The Papers of Joseph Henry.” The Joseph Henry Papers Project, 15 June 2013,

Papiewski, John. “What Causes a Permanent Magnet to Lose Its Magnetism?” Sciencing, 29 Aug. 2019,

Perkins, B.A. “The Electric Current and Some of It’s Household Applications.” Lovelock Tribune, 1909. Chronicling America,

Quarters, Cindy. “Classifications of Magnets.” Sciencing, 2 Mar. 2019,

Sturgeon, William. “No. III. IMPROVED ELECTRO-MAGNETIC APPARATUS.” Transactions of the Society, Instituted at London, for the Encouragement of Arts, Manufactures, and Commerce, vol. 43, 1824, pp. 37–52.,

Torres Assis André Koch, et al. Ampere’s Electrodynamics: Analysis of the Meaning and Evolution of Ampère’s Force between Current Elements, Together with a Complete Translation of His Masterpiece: Theory of Electrodynamic Phenomena, Uniquely Deduced from Experience. C. Roy Keys Inc., 2015.

Wasilewski, Peter, and Günther Kletetschka. “Lodestone, Nature’s Only Permanent Magnet: What It Is and How It Gets Charged.” Geophysical Research Letters, vol. 26, no. 15, 1999, pp. 2275–2278.,