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Man opening door of retro refrigerator freezer.; Shutterstock ID 2275541755; purchase_order: -; job: -; client: -; other: -

Is it more efficient to leave the fridge open if pouring milk for tea?

Our readers clash over this one, with some saying yes, some it makes little difference - and some advocating a shift to black tea for maximum efficiency

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2G4X8CE Female runner running with dogs in canicross style on hill

Does having four legs aid dogs with climbing? Part 2

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F6YK0A Weltzeituhr on Alexanderplatz in Berlin

This week’s new questions

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Beans, beans, do they really make you fart? Scientists investigate

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Tom Gauld on used numbers

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Twisteddoodles on hacking your gut microbiome

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Beaten egg whites with sugar for Meringue in a mixing bowl with an electric hand whisk. Cooking process with kitchen utensils.

Chemistry

How science can help you whip up perfect egg whites for your bakes

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Fox with fresh fish standing on a stone in a lake. Amazing capture of this predator. Nature and wildlife is so rewarding and people still have a lot to learn from all of this.; Shutterstock ID 1041384616; purchase_order: -; job: -; client: -; other: -

Why don’t animals other than humans get sick from uncooked food?

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Reindeers migrate for a best grazing in the tundra nearby of polar circle in a cold winter day.; Shutterstock ID 605430995; purchase_order: -; job: -; client: -; other: -

Has Earth’s shifting north magnetic pole affected migrating animals?

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2G8TR2M Young woman sitting and holding a blue mug of tea outdoor

This week’s new questions

Will my tea cool down quicker if it is left out at room temperature, or if my hands are cupped around the mug? And why do victims of violent attacks sometimes take no immediate action, and how can we learn to react appropriately?

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How the discovery of a nest in a Roman museum caused a kerfuffle

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Humans

Astonishing images show how female Neanderthal may have looked

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Tom Gauld on investing in AI

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Life

Here’s an easier way to improve the drainage of heavy clay soil

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