A step-by-step tutorial showing how to create a silicone mold shaped like a $100 bill, designed for making chocolate replicas ...

As it grows, slime mold can keep track of where it’s been, it can solve mazes in search of food, and it can even be trained to take risks in the name of a big payoff. How exactly? We visited the ...

With a few basic supplies and a bit of patience, you can make a reusable mold to cast frozen replicas anything—even a baby doll head that’s just about the right size for a rocks glass. You ...