Oddball Tech: The future is dirt, USB-powered microwaves, and free kidneys online

Technology is not without its oddball side. This week, we’ve got sandcastles influencing the future of buildings. One day, when you’re in one of these buildings, you could microwave your tiny meal in the world’s smallest microwave. Keep that microwave clear of your internal organs, though. If you zap your kidneys, you can always go online to grab another.