1. World’s first commercial 3-D chocolate printer, story here, beware noisy video at that link.
2. Cardboard arcade made by a nine-year-old boy, hat tip to Karina and Chad.
3. Tightening antibiotic use for livestock; let’s hope it works, a partial but not complete Coasian trade says it won’t, in a pinch farmers will buy vets. More here.
4. Proof that I am needed.
5. The electrical efficiency of computing.