This week’s new questions
30 September 2020
Do pot plants get lonely? And when older people grunt "ohoo" when they sit down on a chair or stand up again, is this a cultural convention or has it got a physiological reason?
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Premium
What would it look like if dark matter fell into a black hole?
30 September 2020
What would we observe if dark matter – the mysterious, invisible stuff that far outnumbers the normal matter we can see – was swallowed by a black hole?
Why don't we make disease cures that are themselves infectious?
30 September 2020
If cures were contagious, this would be a great way to stop pandemics. So why haven't we developed any?
Why does milk spill over when it boils?
30 September 2020
When milk is heated to boiling point, why does it foam up and spill out of the pan?
