Artificial muscles can lift things 1,000 times, 3 times stronger than natural muscles

A group of Columbia University engineers has produced an artificial engine using 3D printing technology. With this technology, artificial muscles can be created in any shape and have much better resilience and strength than natural muscles. Artificial mechanics will help flexible robots gain superior power and the ability to perform more flexible operations.

1. Artificial 3D printed hearts work almost like human hearts
2. Successfully synthesizing smallpox virus, the risk of a deadly epidemic returning or the development of chemical weapons?