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Two scientists use a massive, illuminated periodic table of elements as they discuss the element holmium in the Lawrence Hall of Science at the University of California, Berkeley. (Photo by ?? Ted Streshinsky/CORBIS/Corbis via Getty Images)

How many elements in the periodic table could we safely remove? part 2

The answer depends on whether we鈥檙e talking about we humans, all life or industrialised society, says one reader

2WRG1EA close up of frozen green peas, top view of vegetable food, peas from freezer background

What鈥檚 the optimal ratio of frozen peas to cold tap water? Part 2

High five from a cute scruffy dog with a big smile! Cream wall background, shallow depth of field. Clever dog, the Bailey lightbox

Do left- and right-handedness exist in animals? part 3

E7MK5Y Insectivorous plant Venus fly trap (Dionaea muscipula) digesting a captured mosquito. Plant house, Galveston, Texas, USA.

This week鈥檚 new questions

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When ChatGPT went full goblin mode

Twisteddoodles on a surprisingly effective youth serum

Tom Gauld on the wisdom of Bertrand Russell

Technology

Former Soviet scientific megastructures captured in striking photos

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Less nostalgia, more pain: scientists study 1763 Eurovision songs

What鈥檚 the optimal ratio of frozen peas to cold tap water?

You shouldn鈥檛 use any water, and perhaps consider cooking peas in the microwave, say our readers.

Why do humans feel the urge to share their thoughts with others?

Do left- and right-handedness exist in animals? part 2

How can gravity escape a black hole? part 2

This week鈥檚 new questions