Weekly Dose of Wonder

That's a community-wide game Edgard Gouveia remembers from his boyhood in Brazil — and uses as a model in his efforts to heal the world through gameplay.

Nassim Haddad has seen his share of disaster and loss. At 79, he says of his philosophy: "I start again from the beginning. I start from zero. I [am not] afraid from anything."

In response to our callout, you shared (and crooned) bedtime musical selections that work magic. (Well, except for the mom who tried an Enya song and whose kid begged, "Stop singing!")

Cooking meat for a long time over relatively low temps can transform a tough cut. Who thought it up? And what's the chemical magic? You might be surprised by the origins.

Our correspondent bought some mail-order chicks. They grew into hens. They changed her life for the better. And then one day ... she heard this wondrous sound.