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

What caused this red-only rainbow, when there was no rain? (part 2)

Last Word

What caused this red-only rainbow, when there was no rain? (part 2)

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Content young African woman sleeping peacfully under a duvet in her bed at home in the early morning; Shutterstock ID 763309252; purchase_order: -; job: -; client: -; other: -

Last Word

In the cold, why does our body require warm covers but not our face?

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Abstract red and blue futuristic sci-fi plasma circular form. 3D illustration of shining energy force field light strokes waving on a ring motion path for logo or text. 4K Ultra HD; Shutterstock ID 1277472397; purchase_order: -; job: -; client: -; other: -

Last Word

If energy cannot be created or destroyed, where does it come from?

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2C46BM3 Close up of two yellow UK fire hydrant H signs showing nearest water supply for fire service, West Yorkshire

Last Word

This week’s new questions

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Issue no. 3377 published 12 March 2022

91av issue 3377 cover
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