/u/schematicboy's posts
The cannons at Edinburgh Castle have what appears to be a dollar sign on one side of the pivot. Does anyone know what this indicates? I assume this symbol predates the US dollar, since the cannons likely do as well.
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If you pour a layer of oil on top of water in an open container, will it keep the water from evaporating?
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Suppose I have a container of water with a ball floating on top of it. I put it outside overnight and the water freezes. Since the water's volume increases as it freezes, the ball is raised. Where does the increased gravitational potential energy come from?
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18th-century American recipes were often spiced with nutmeg, cloves, and cinnamon. When was cardamom first imported into North America and how was it received?
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It is presumable that people have suffered from motion sickness ever since humans began using boats, horses, and so on. What were the physiological explanations for the mechanism behind this illness prior to a modern neurological one?
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Are there any known instances of historians misinterpreting satirical works for ones written in earnest?
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I was looking at an LED lighting catalog, and I noticed that a higher color rendering index seems to correspond to a lower efficiency. Is this coincidental, or is there some physical mechanism that causes a negative correlation?
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