Mindful
Hans Island, disputed territory between Denmark and Canada, is home to a refreshing war. Each country’s soldiers take down the others’ flag, replace it with schnapps or whiskey (guess who leaves what), and drop a note, welcoming the other to the country.
It takes lots of power for subway trains to dart between stations, then grind to a standstill (it also takes Hulklike strength to stand upright in that situation). London is now converting the power of braking trains back into the system, saving enough energy to power more than 100 homes a year.
Scientists created a bandage that glows neon green under a UV light to indicate if a wound is infected. (Way cooler than Superman bandages. Sorry, Superman.)
Aimee Bortnem of Minnetrista, Minnesota, won a two-minute grocery…