Telecom

5G launches in US without huge impact on flights

Telecom giants AT&T and Verizon began 5G service in the United States Wednesday without major disruptions to flights after the launch of the new wireless technology was scaled back.

Internet

TikTok, YouTube and Snapchat defend impact on kids at US hearing

Three social media networks massively popular with the youngest users—TikTok, Snapchat and YouTube—tried to convince skeptical US lawmakers Tuesday they are safe as worry about Facebook's potential harms spills over to ...

Other

A peek behind the IT curtain of EU's 'vaccine passport'

From video calls involving 130 people to no-shows at the general rehearsal, Josef Lieven and his team of software engineers faced their share of challenges on the road to Europe's digital COVID certificate.

Other

Boeing 737 MAX inches towards flying again

The grounded Boeing 737 MAX moved another step closer towards flying again Tuesday as US regulators said they would soon accept public comments on a roadmap to recertify the jet.

Energy & Green Tech

Overcome the bottleneck of solid electrolytes for lithium batteries

Prof. Ma Cheng from the University of Science and Technology of China (USTC) and his collaborators proposed an effective strategy to address the electrode-electrolyte contact issue that is limiting the development of next-generation ...

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