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Last Word

Close-up of delighted senior man twirling moustache and smoothing his grey beard. Man taking care of his bushy beard and mustache ; Shutterstock ID 559674487; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Why is it that our hair 鈥� and for men our beard 鈥� goes white while the other hair on our head (eyebrows and eyelashes) stays its original colour? And why are some people very heavy sleepers, while others are woken by only a small disturbance?

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GUILIN, CHINA - OCTOBER 16: Juri Hollmann of Germany and Movistar Team leads the peloton during the 4th Gree-Tour of Guangxi 2023, Stage 5 a 209.6km stage from Liuzhou to Guilin / #UCIWT / on October 16, 2023 in Guilin, China. (Photo by Tim de Waele/Getty Images)

Does a cyclist with a rider behind use more energy than a solo rider?

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Earth core structure. Elements of this image furnished by NASA; Shutterstock ID 371019560; purchase_order: -; job: -; client: -; other: -

Why does our planet have an iron core?

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2JP8KPY Very tight parking in Italy with a small dented family car bumper to bumper squashed in next to two cars in a parking bay with only inches to move.

What is the shortest space a parked car can get out of? Part 3

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HFRCEK Knife slicing wholegrain bread

This week鈥檚 new questions

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ginger cat slumped over a branch stuck in a cherry tree; Shutterstock ID 1750273625; purchase_order: -; job: -; client: -; other: -

Humans make mistakes, but how often do other animals?

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CRF88E Woman spooning meat into tupperware

Why are leftovers always tastier when heated up the next day?

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Brachiosaurus dinosaur in water next to islands with palm trees. This is a 3d render illustration; Shutterstock ID 2218581533; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

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2CXYTWB Close up of a green cicada insect bug on a plant

What triggers cicadas to make noises in unison, then go silent?

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2JAN5P2 Holland Street meets the steep Albion Hill in the Hanover neighbourhood of Brighton

Do people in hilly towns have better health than those in flat towns?

Not necessarily, say our readers - the (flat) Milton Keynes was recently named the healthiest place in the UK and hilly towns may be smaller, with less access to cheap supermarkets

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This week鈥檚 new questions

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If Earth stopped rotating, would this affect the force of gravity?

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Why do we say 鈥渁ww鈥� when we see small, fluffy things?

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This week鈥檚 new questions

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