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The Water Cooler
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Cost of lumber in 1933 for great grandpas 12x40 "museum" building
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<blockquote data-quote="Raido Free America" data-source="post: 3881181" data-attributes="member: 45328"><p>People used to open the top panes of windows, especuially on the upper floors, and the lower windows on the bottom floor, the hotter air rising created a natural draft in hot weather. Off subject I know, but we went to Petterersburg, VA. Civil War Battlefield recently, the battle where the Union tunneled under Confedrerate lines, and set of a huge explosion. The tunnel entrance is still there. This tunnel was two, three hundred yards long, and they couldn't dig air vents in the no mans land, without exposing what they were up to. They dug one vent 50 feet in, and built a air duct, out of lumber, 12x12, or so, as the tunnel got deeper, they built a fire at the only vent, hung a tarp between the fire at the vent, and the tunnel opening, forcing air to be sucked through the air duct, to supply the fire, and the up draft created by the heat! The kept extending the air duct, as the tunnel got deeper! Is that clever, or what? Ther Union troops that dug this were coal muiners from Pennsivana, and apparently used this in their work? I have been a Civil War Buff for 50 years and never heard this before.</p></blockquote><p></p>
[QUOTE="Raido Free America, post: 3881181, member: 45328"] People used to open the top panes of windows, especuially on the upper floors, and the lower windows on the bottom floor, the hotter air rising created a natural draft in hot weather. Off subject I know, but we went to Petterersburg, VA. Civil War Battlefield recently, the battle where the Union tunneled under Confedrerate lines, and set of a huge explosion. The tunnel entrance is still there. This tunnel was two, three hundred yards long, and they couldn't dig air vents in the no mans land, without exposing what they were up to. They dug one vent 50 feet in, and built a air duct, out of lumber, 12x12, or so, as the tunnel got deeper, they built a fire at the only vent, hung a tarp between the fire at the vent, and the tunnel opening, forcing air to be sucked through the air duct, to supply the fire, and the up draft created by the heat! The kept extending the air duct, as the tunnel got deeper! Is that clever, or what? Ther Union troops that dug this were coal muiners from Pennsivana, and apparently used this in their work? I have been a Civil War Buff for 50 years and never heard this before. [/QUOTE]
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The Water Cooler
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Cost of lumber in 1933 for great grandpas 12x40 "museum" building
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