Sciencespeaking topic
An elephant lives much more slowly than a mouse: its heart beats less often and it dies later. It's as if every creature is given the same number of heartbeats at birth, and the big ones spend them slowly while the small ones spend them fast. Why does time itself slow down as a body grows?
— Kleiber's law / metabolic scaling
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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