Last I checked, licking one's finger and holding it up to the wind can be a fair indicator of what's blowing.
But if you're into activities like sailing, windsurfing, or flying your army of robot drones, you might want to check out Vaavud, a wireless wind meter that works with your smartphone.
The subject of a 20,000-pound ($30,456) Kickstarter campaign, Vaavud was developed by a Danish trio keen on windsurfing and kitesurfing.
You can plug the little wind meter into your phone's audio jack, or simply hold it near your handset. It works wirelessly and doesn't even have electronics. … Read more