Podcast: Babbage: Conversational computers

BUILT in 1885 to export 5m tonnes of coal a year from Yorkshire’s mines, the Alexandra dock in Hull...

IN THE mid-2000s Playpumps International, a charity, hit on a photogenic way of providing clean water to rural African...

BRANDENBURG used to be called the sandbox of the Holy Roman Empire for its poor soil and marginal geography....

Mixing water with electricity COMPARED with, say, Hawaii or Bali, Cornwall hardly counts as a surfer’s paradise. Yet the...

BESIDE the Pan-American Highway, almost 600 km (375 miles) north of Santiago, Chile’s capital, lies El Romero, the largest...

THAT solar panels do not emit greenhouse gases such as carbon dioxide when they are generating electricity is without...

Vestine sees the light WHEN Vestine Mukeshimana bought electric lights last month from BBOXX, an off-grid solar company, it...