Voice-operated smartphones are aiming at a vast yet widely overlooked market in sub-Saharan Africa — the tens of millions of people who face huge challenges in life because they cannot read or write.In Ivory Coast, a so-called “Superphone” using a

A global search for alternative sources to Russian energy in light of the war in Ukraine has refocused attention on smaller, easier-to-build nuclear power stations, which proponents say could provide a cheaper, more efficient alternative to older model…