17/12/2025

Modified sodium-ion battery material boosts energy storage and durability

Sodium-ion batteries are a cheaper and more abundant alternative to lithium-ion batteries, and they could power future electric cars and grid storage if they could be made to store enough energy. NaNi1/3Fe1/3Mn1/3O2 is a ...

Dec 17, 2025

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Internet shutdowns are increasing dramatically in Africa—a new book explains why

Between 2016 and 2024 there were 193 internet shutdowns imposed in 41 African countries. This form of social control is a growing trend in the continent, according to a new open-access source book. It has provided the first-ever ...

Dec 17, 2025

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