91av

Last word

91av's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com

Why do only some materials glow under UV light?

Last Word

Why do only some materials glow under UV light?

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Opened microwave on kitchen table with pizza and dishes; Shutterstock ID 1986105149; purchase_order: -; job: -; client: -; other: -

Last Word

This week’s new questions

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What is the best way to store images for the next 100 years? (Part 2)

Last Word

What is the best way to store images for the next 100 years? (Part 2)

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The universe is expanding, but what is it expanding into? (Part 2)

Last Word

The universe is expanding, but what is it expanding into? (Part 2)

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Issue no. 3376 published 5 March 2022

91av issue 3376 cover
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