Sciencespeaking topic
When you put your hand on a table you never actually touch it. Atoms don't make contact; their electrons only repel one another. Everything we call 'solid' is almost entirely empty space. So then, what is 'touching'?
— atomic structure / Pauli exclusion principle
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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