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WEDNESDAY, 29 OCTOBER 2025, 20:59

Science/Tech

E-waste recycling pilot launches in Jozi

22 October at 11:42 AM, via ITWeb

An e-waste recycling project will address the “growing crisis” of e-waste management in the Johannesburg Metropolitan Municipality.

How living history is being written into rocks

22 October at 07:00 AM, via The Guardian

Scientists are using DNA from sediments to learn more about Earth’s past, including new revelations about the woolly mammoth

Fossilisation is rare. Most living things disappear without trace, recycled back into planet Earth.

But in some environments the DNA from living things binds to the soil and rock, leaving a marker of their existence for hundreds of thousands or even millions of years.

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Walking just 4,000 daily steps once a week cuts risk of early death in older people, study suggests

22 October at 00:30 AM, via The Guardian

Researchers say the target significantly reduces risk of dying and lowers likelihood of cardiovascular disease

Older people who only walk 4,000 daily steps once a week still reduce their risk of dying early by a quarter, a study suggests.

Staying active is known to bring a wide range of health benefits. But many people in their 60s, 70s and beyond may struggle for a variety of reasons to...

Elon Musk feuds with US transportation chief in social media posts: ‘2 digit IQ’

21 October at 23:07 PM, via The Guardian

SpaceX owner said Sean Duffy was ‘trying to kill Nasa’ after acting head said agency would reopen contracts for Artemis mission

US politics live – latest updates

Elon Musk attacked Sean Duffy, the US secretary of transportation, on Tuesday in a series of posts on X, accusing him of trying to “kill NASA”, suggesting he should be fired and calling him “Sean Dummy”. The posts intensified a...

Chen-Ning Yang obituary

21 October at 21:56 PM, via The Guardian

Theoretical physicist who won the Nobel prize for his work on the forces acting on fundamental subatomic particles

Chen-Ning Yang, the Chinese American theoretical physicist, who has died aged 103, won the Nobel prize in physics in 1957.

It was during a period at the Institute for Advanced Study at Princeton, New Jersey, in 1950 that Yang (also known as CN Yang, or Frank Yang) befriended...

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