Sciencespeaking topic
How does al-Biruni calculating the circumference of the Earth with striking accuracy from the height of a mountain show the power of medieval science?
— Abu Rayhan al-Biruni, measurement of the Earth's circumference
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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