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The Duality of Caffeine

Caffeine is a heck of a drug - at the same time it's both good and bad for you. Learn the good, bad and ugly about this everyday stimulant in today's episode.

How Skywriting Works

Back in the 1920s, skywriting was invented to communicate with troops, but it quickly found its footing as a popular way for companies to advertise. Learn all about the aerial acrobatics and mental skill it takes to write mile-high letters backwards.