A new kind of power adapter is barely bigger than a plug.
Advances in LEDs and lithium-ion batteries have produced some unusual new flashlights.
The reported acquisition by the Chinese company Hanergy is another sign lean times for Alta Devices, but it could ultimately help the technology.
Prototype batteries that dissolve safely in the body could power ingested devices.
Investments in energy start-ups can count as charitable grants. Could this funding approach help get new technologies to market?
Does humanity’s tightening grip on the fate of nature portend new sources of global conflict?
Crops that aid humanitarian causes may soften opposition to genetic modification, says Mark Lynas.
Electric vehicle range drops in cold weather, and technological solutions are years away.
Routing gas around Europe using the same decentralised control techniques developed for the internet could reduce the way energy crises cascade, say network and complexity theorists.
Technology from Envia that was supposed to cut EV battery costs in half doesn't actually work.