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Four small bottles of chili hot sauce made from fermented dry de Cayenne chilies. Jar with fermentation process and dry chilies in front.; Shutterstock ID 1766916452; purchase_order: -; job: -; client: -; other: -

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How to make a delicious chilli hot sauce by harnessing fermentation

It might sound daunting, but fermentation can be used to make hot sauces packed with flavourful compounds, says Sam Wong

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Pink Sauce provokes social media savaging

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Tom Gauld on how to spot a scientist having an existential crisis

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Twisteddoodles: Does science really never sleep?

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Closeup portrait, senior mature man, disgust face, pinch nose, something stinks, very bad smell, isolated outdoors outside background. Negative emotion, facial expression; Shutterstock ID 640783057; purchase_order: -; job: -; client: -; other: -

Does anything actually cure hiccups?

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Close up of hand holding compass business navigate, passing through the crisis and growth in the economic.; Shutterstock ID 2115345185; purchase_order: -; job: -; client: -; other: -

At what height do navigation compasses stop working?

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Why do little children run everywhere instead of walking? (continued)

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FTTG61 Ball of white heavy thread isolated on white

This week’s new questions

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Portrait closeup shot of Asian little curious elementary girl with bunches pigtail hairstyle wears safety goggles looking at water bottle blowing green rubber balloon experiment teach by teacher.; Shutterstock ID 1985510477; purchase_order: 30 July 2022 issue; job: Photo; client: NS; other:

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Reimagined bicarb volcano could spark your children’s love for science

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The pornography-detection cap that reads your mind

Feedback raises an eyebrow at the cap which reads brainwaves to help China detect pornography, while also investigating secret cannabis facilities in Australia - and grave-robbing badgers

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How to grow chilli plants in cooler climates

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Tom Gauld: The robot hands have been trained to peel a banana

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Twisteddoodles: Fun filters for the James Webb Space Telescope

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Cameraless photography creates lockdown ‘supernovae’ at home

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