Traveling east on Amtrak’s Empire Builder. The scenery is truly spectacular: the track follows the Columbia River at first, then lead across the Cascade Mountains, and the Glacier National Park towards North Dakota, Minnesota, and finally Illinois.
Office of War Information poster, 1943.
Dynamite equation according to the New Hampshire State Library: One pound of waste fat equaled 1/10 of a pound of glycerine. 1/10 pound of glycerine equaled 1/5 of a pound of nitroglycerine. 1/5 of a pound of nitroglycerine equaled 1/3 pound of gunpowder. 1/5 of a pound of nitroglycerine equaled ½ pound of dynamite.
Illustrated by Henry Koerner, an Austrian who emigrated to the US after the Nazis took power.