Hue new? Scientists claim to have found colour no one has seen before

18 avril 2025 à 20:00

Contested discovery achieved by experiment firing laser pulses into eyes, stimulating retina cells

After walking the Earth for a few hundred thousand years, humans might think they have seen it all. But not according to a team of scientists who claim to have experienced a colour no one has seen before.

The bold – and contested – assertion follows an experiment in which researchers in the US had laser pulses fired into their eyes. By stimulating individual cells in the retina, the laser pushed their perception beyond its natural limits, they say.

New daily weight-loss pill shows success at clinical trial

The Guardian

Par :Ian Sample Science editor

17 avril 2025 à 15:01

Orforglipron also reduced blood sugar levels in participants with type 2 diabetes

A significant trial of a daily weight-loss pill has found that it helped people to shed the pounds and reduce their blood sugar levels, making it a contender to join the new wave of drugs that combat obesity and diabetes.

People who took a 36mg pill of orforglipron lost an average of 7.3kg (16lbs) over nine months, according to results from a phase 3 clinical trial reported by the drug’s manufacturer, Eli Lilly, on Thursday.

Lab-grown chicken ‘nuggets’ hailed as ‘transformative step’ for cultured meat

The Guardian

Par :Ian Sample Science editor

16 avril 2025 à 17:00

Japanese-led team grow 11g chunk of chicken – and say product could be on market in five- to 10 years

Researchers are claiming a breakthrough in lab-grown meat after producing nugget-sized chunks of chicken in a device that mimics the blood vessels that make up the circulatory system.

The approach uses fine hollow fibres to deliver oxygen and nutrients to chicken muscle cells suspended in a gel, an advance that allowed scientists to grow lumps of meat up to 2cm long and 1cm thick.

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