CC0 Usage Conditions ApplyClick for more information. Mechanical and Civil Engineering Stereograph Cards Mechanical and Civil Engineering Stereograph Cards / Series 1: Stereograph Cards / 1.39: ...
NORTH ADAMS — The Hoosac Tunnel Special chugged into town 90 minutes late and under drizzly, miserable skies on Saturday, but it still provided the curious and the nostalgic with a trip through the ...
Gunpowder was first used in 1679, to build an underground section of the Canal du Midi, a canal connecting the Atlantic Ocean and the Mediterranean Sea. The tunnel was 157 meters long. Nitroglycerin ...
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