Category: Tech & Science

The little lights now packing a deadly punch

Image copyright Chris Zollner Image caption Christian Zollner has been trying to find new uses for LEDs “The tech we are working on could transform water sanitisation techniques and offer access to clean drinking water to even remote developing regions via portable systems,” says Christian Zollner from the University of California in Santa Barbara. Mr […]

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Twitter fact-checks China amid bias row

Image copyright Retuers Image caption Mr Zhao is one of China’s most prominent spokesmen Twitter, under intense scrutiny for its use of fact-checking warnings, has added them to tweets from China’s foreign ministry spokesperson. The warning has been added to tweets from spokesman Lijian Zhao, in which he warned: “It might be US army who […]

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Coronavirus Live News: Global Updates

Here’s what you need to know: ImageA testing site south of London this month.Credit…Andrew Testa for The New York Times As mass testing and contact tracing are rolled out in some nations, others are way ahead. The push for large-scale coronavirus testing and contact tracing has been at the core of the World Health Organization’s […]

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Uber destroys thousands of bikes and scooters

Image copyright Getty Images Uber is destroying thousands of electric bikes and scooters, after selling its Jump business to Lime. Videos of its red bikes being crushed at a recycling centre were shared on social media, angering cycling advocates. Uber said it had decided to destroy thousands of its older-model vehicles due to maintenance, liability […]

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