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TIL the term "cup" used to describe how much coffee your at-home coffee maker can brew is NOT a reference to the standard unit of measurement "cup" which is equal to 8 fluid ounces.

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p8AZb TIL The Earth has what can poetically called it's "Heartbeat". Lightning flashes set up the resonance pattern that surrounds Earth.After bouncing off the ionosphere, the electromagnetic waves from a single lightning burst interact with and amplify other waves,setting up the Schumann Resonance.
YdRP TIL of NASA’s sound suppression system which soaks the launch pad with 300,000 gallons of water, reducing acoustical levels within the orbiter payload bay to about 142 decibels.
krZm TIL The early comedy cinema joke of slipping on a banana peel was a reference to slipping in horse manure.
b9PMQ TIL that "Social Urbanism" approach to urban planning helped take Medellin from Pablo Escobar's most dangerous city in the world to a "model city" tourist destination. Medellin tackled crime and violence "not through more policing but through urban planning, infrastructure, and social programs."
Zpw6Q TIL the Portuguese Man o’ War is a colonial organism, where many organisms form one unit. They produce both sexually and asexually. First, the male and female polyps release gametes into the water which, when fertilized, result in larvae that then begin to reproduce asexually to create a new colony.