This week’s new questions
5 January 2022
What makes certain materials glow under UV light, and not others? And why do our own farts smell OK, whereas those of other people’s smell awful?
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Premium
Do magnets have any effects on human cells? (part 2)
5 January 2022
Living creatures can be levitated by magnetic fields, but this doesn’t mean that our cells are affected by them
If my brain atoms were replaced with identical ones, am I still me?
5 January 2022
Yes and no say our readers – evoking wooden ships, the multiverse and dinosaurs to address a question that has vexed philosophers for centuries
Do house spiders released outside survive, or navigate back?
5 January 2022
The fate of spiders caught in the home and released some distance away depends on the species - and the temperature
