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TIL that ‘Sweet Home Alabama’ is a Neil Young disstrack.
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8r6b
TIL of a chemical so malodorous that opening a container of it can cause people hundreds of yards away to notice within seconds. A soapmaker reported that diluting it seemed to make the smell worse, calling it “fearful”.
VMP9B
TIL there’s a mountain in Switzerland called the Niesen (aka the Swiss Pyramid) that’s home to the world’s longest staircase. It’s only open one day a year for a race to the top. The fastest runners can ascend the 11,674 steps and 5400’ (1660m) in just under an hour.
LjAp
TIL that it’s possible for well-educated intellectually active individuals to have Alzheimer’s and not show any of the symptoms of cognitive decline, even when the desease was progressed much and their brain is riddled with plaques and tangles. However, they still die of it.
KOeD6
TIL: One Hollywood movie studio complex was used only by the US military for making secret films --mostly editing footage of nuclear weapons tests. The activities of the so-called "Lookout Mountain Air Force Station" ended in 1969, but remained largely unknown to the public until the 1990s.
660J
TIL there are things called metamaterials that are artificially engineered materials with properties not found in nature. These properties are the result of their precisely designed structure. Some have the ability to reverse the refractive index, allowing for the possibility of superlenses.